List of scientific publications: |
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Citations (Crossref Cited-By Service + Math-Net.Ru) |
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2024 |
1. |
Kh. D. Ikramov, V. N. Chugunov, “O nevyrozhdennykh resheniyakh matrichnogo uravneniya $XAX = AXA$ i tsentralizatore matritsy $A$”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2024, no. 2, 25–30 |
2. |
Kh. D. Ikramov, A. M. Nazari, “How a unitoid matrix loses its unitoidness?”, Sib. Zh. Vychisl. Mat., 27:3 (2024), 277–286 |
3. |
V. N. Chugunov, Kh. D. Ikramov, “New classes of solutions of the $\sigma$-commutation problem ($\sigma\ne0$, $\pm1$) for Toeplitz and Hankel matrices within a unified approach”, Comput. Math. Math. Phys., 64:7 (2024), 1413–1430 |
4. |
Kh. D. Ikramov, “The simultaneous reduction of a pair of unitoid matrices to diagonal form revisited”, Comput. Math. Math. Phys., 64:5 (2024), 905–907 |
5. |
V. N. Chugunov, Kh. D. Ikramov, “Deriving known particular solutions of the $\sigma$-commutation problem $(\sigma\ne0, \pm1)$ for a Toeplitz and a Hankel matrix within a unified approach”, Comput. Math. Math. Phys., 64:1 (2024), 36–44 |
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2023 |
6. |
Kh. D. Ikramov, “On the simultaneous reduction of a pair of unitoid matrices to diagonal form”, Comput. Math. Math. Phys., 63:2 (2023), 184–186 |
7. |
Kh. D. Ikramov, “O normalnykh i binormalnykh matritsakh”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2023, no. 1, 28–31 |
8. |
Kh. D. Ikramov, “Congruences and unitary congruences in matrix theory”, Journal of Mathematical Sciences (N.Y.), 272:6 (2023), 766–773 |
9. |
Kh. D. Ikramov, “On a new type of unitoid matrices”, Comput. Math. Math. Phys., 63:6 (2023), 929–933 |
10. |
Kh. D. Ikramov, “O ratsionalnykh algoritmakh raspoznavaniya prinadlezhnosti klassam kongruentnosti”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2023, no. 3, 23–26 |
11. |
Kh. D. Ikramov, “Pseudo-commutation classes of complex matrices and their decomplexification”, Sib. Zh. Vychisl. Mat., 26:2 (2023), 199–203 |
12. |
V. N. Chugunov, Kh. D. Ikramov, “On a particular solution of the $\sigma$-commutation problem $(\sigma\ne0,\pm1)$ for Toeplitz and Hankel matrices”, Comput. Math. Math. Phys., 63:11 (2023), 2038–2049 |
13. |
Kh. D. Ikramov, “Involutions and coninvolutions”, Sib. Zh. Vychisl. Mat., 26:4 (2023), 379–388 |
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2022 |
14. |
Kh. D. Ikramov, “On matrices whose cosquares are diagonalizable and have real spectra”, Sib. Zh. Vychisl. Mat., 25:1 (2022), 53–57 |
15. |
Kh. D. Ikramov, “On the congruence centralizers of a block diagonal matrix and the Horn–Sergeichuk matrix”, Comput. Math. Math. Phys., 62:2 (2022), 198–200 |
16. |
Kh. D. Ikramov, “O neobychnom kriterii normalnosti nevyrozhdennykh matrits”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2022, no. 1, 9–12 |
17. |
Kh. D. Ikramov, V. N. Chugunov, “Diagonalizuemye matritsy kak rezultat odnorangovogo vozmuscheniya nilpotentnykh matrits”, Vestnik Moskovskogo universiteta. Seriya 15: Vychislitelnaya matematika i kibernetika,, 2022, no. 2, 17–21 |
18. |
S. D. Ikramov, “Canonical angles of normal matrices and theorems of the Wielandt–Hoffman and J.-g. Sun type”, Comput. Math. Math. Phys., 64:10 (2022), 1586–1589 |
19. |
Kh. D. Ikramov, A. M. Nazari, “On the sensitivity of the canonical angles of a unitoid matrix”, Sib. Zh. Vychisl. Mat., 25:4 (2022), 403–408 |
20. |
Kh. D. Ikramov, “On a nontrivial situation with pseudounitary eigenvalues of a positive definite matrix”, Computational methods and algorithms. Part XXXV, Zap. Nauchn. Sem. POMI, 514, POMI, St. Petersburg, 2022, 55–60 |
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2021 |
21. |
Kh. D. Ikramov, “Kriterii kongruentnosti nevyrozhdennykh matrits s teoretiko-gruppovoi tochki zreniya”, Vestnik Moskovskogo universiteta. Seriya 15: Vychislitelnaya matematika i kibernetika,, 2021, no. 1, 15–18 |
22. |
Kh. D. Ikramov, A. M. Nazari, “A rational algorithm for checking the congruence of unitoid matrices”, Num. Anal. Appl., 14:2 (2021), 145–154 |
23. |
Kh. D. Ikramov, “On Matrices Having $J_m(1)\oplus J_m(1)$ as the Cosquare”, Math. Notes, 110:1 (2021), 73–80 |
24. |
S. D. Ikramov, “On the calculation of the $T$-congruence centralizer”, Comput. Math. Math. Phys., 61:3 (2021), 347–350 |
25. |
Kh. D. Ikramov, A. M. Nazari, “Symplectic eigenvalues and singular values of symmetric matrices”, Computational methods and algorithms. Part XXXIV, Zap. Nauchn. Sem. POMI, 504, POMI, St. Petersburg, 2021, 61–69 |
26. |
Kh. D. Ikramov, “Special congruences of symmetric and Hermitian matrices and their invariants”, Computational methods and algorithms. Part XXXIV, Zap. Nauchn. Sem. POMI, 504, POMI, St. Petersburg, 2021, 54–60 |
27. |
Kh. D. Ikramov, “On matrices with pairwise orthogonal rows and columns”, Computational methods and algorithms. Part XXXIV, Zap. Nauchn. Sem. POMI, 504, POMI, St. Petersburg, 2021, 47–53 |
28. |
Kh. D. Ikramov, “Spektralnye osobennosti proizvedenii spetsialnykh matrits”, Vestnik Moskovskogo universiteta. Seriya 15: Vychislitelnaya matematika i kibernetika,, 2021, no. 4, 17–20 |
29. |
Kh. D. Ikramov, “On the set of matrices having $J_n(1)$ as the cosquare”, Comput. Math. Math. Phys., 61:11 (2021), 1743–1749 |
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2020 |
30. |
Kh. D. Ikramov, “O teplitsevom i polyarnom razlozheniyakh involyutivnoi matritsy”, Vestnik Moskovskogo universiteta. Seriya 15: Vychislitelnaya matematika i kibernetika, 2020, no. 2, 19–22 |
31. |
Kh. D. Ikramov, “Congruences and unitary congruences in matrix theory”, Proceedings of the XVII All-Russian Youth School-Conference «Lobachevsky Readings-2018», November 23-28, 2018, Kazan. Part 1, Itogi Nauki i Tekhniki. Ser. Sovrem. Mat. Pril. Temat. Obz., 175, VINITI, Moscow, 2020, 19–26 |
32. |
Kh. D. Ikramov, “On the dimension of the congruence centralizer”, Dokl. Math., 102:1 (2020), 276–278 |
33. |
Kh.D. Ikramov, V.A. Usov, “Algoritm, proveryayuschii kongruentnost kompleksnykh matrits pri nalichii unimodulyarnykh sobstvennykh chisel v spektre kokvadratov”, Vestnik Moskovskogo universiteta. Seriya 15: Vychislitelnaya matematika i kibernetika, 2020, no. 4, 18–26 |
34. |
Kh. D. Ikramov, “Specific features of cosquares of special matrices in indefinite metric spaces”, Computational methods and algorithms. Part XXXIII, Zap. Nauchn. Sem. POMI, 496, POMI, St. Petersburg, 2020, 101–103 |
35. |
Kh. D. Ikramov, “The structure of solutions of the matrix equation $J_n(0) Y + Y^{\mathsf{T}} J_n(0) = 0$ for even $n$”, Computational methods and algorithms. Part XXXIII, Zap. Nauchn. Sem. POMI, 496, POMI, St. Petersburg, 2020, 97–100 |
36. |
Kh. D. Ikramov, “Congruence of unitary matrices”, Computational methods and algorithms. Part XXXIII, Zap. Nauchn. Sem. POMI, 496, POMI, St. Petersburg, 2020, 94–96 |
37. |
Kh. D. Ikramov, “Congruence verification for involutive matrices”, Computational methods and algorithms. Part XXXIII, Zap. Nauchn. Sem. POMI, 496, POMI, St. Petersburg, 2020, 87–93 |
38. |
S. D. Ikramov, A. M. Nazari, “A heuristic rational algorithm for checking the congruence of normal matrices”, Comput. Math. Math. Phys., 60:10 (2020), 1601–1608 |
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2019 |
39. |
Kh. D. Ikramov, “O metode bisektsii dlya normalnykh matrits”, Doklady Akademii nauk, 485:6 (2019), 659–661 |
40. |
Kh. D. Ikramov, “Kvadratnye korni iz ermitovykh matrits i ratsionalnyi algoritm dlya proverki ikh kongruentnosti”, Vestnik Moskovskogo universiteta. Seriya 15: Vychislitelnaya matematika i kibernetika,, 2019, no. 3, 11–16 |
41. |
Kh. D. Ikramov, “Certain localization regions for the eigenvalues of a normal matrix”, Comput. Math. Math. Phys., 59:8 (2019), 1233–1235 |
42. |
Kh. D. Ikramov, “Congruence criteria for normal and conjugate-normal matrices”, Computational methods and algorithms. Part XXXII, Zap. Nauchn. Sem. POMI, 482, POMI, St. Petersburg, 2019, 129–134 |
43. |
Kh. D. Ikramov, “Rationally verifiable necessary conditions for Hermitian congruence of complex matrices”, Computational methods and algorithms. Part XXXII, Zap. Nauchn. Sem. POMI, 482, POMI, St. Petersburg, 2019, 120–128 |
44. |
Kh. D. Ikramov, “An attempt of spectral theory for the $*$-congruence transformations”, Computational methods and algorithms. Part XXXII, Zap. Nauchn. Sem. POMI, 482, POMI, St. Petersburg, 2019, 114–119 |
45. |
A. K. Abdikalykov, Kh. D. Ikramov, “Similarity automorphisms of the space of Hankel matrices”, Computational methods and algorithms. Part XXXII, Zap. Nauchn. Sem. POMI, 482, POMI, St. Petersburg, 2019, 5–12 |
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2018 |
46. |
Kh. D. Ikramov, “O simplekticheskikh sobstvennykh znacheniyakh polozhitelno opredelennykh matrits”, Vestnik Mosk. un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2018, no. 1, 3–6 |
47. |
Kh. D. Ikramov, Yu. O. Vorontsov, “Chislennoe reshenie polulineinogo matrichnogo uravneniya tipa Steina v normalnom sluchae”, Vestnik Mosk. un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2018, no. 2, 3–6 |
48. |
S. D. Ikramov, “Solving Systems of Linear Equations with Normal Coefficient Matrices and the Degree of the Minimal Polyanalytic Polynomial”, Math. Notes, 104:1 (2018), 48–52 |
49. |
Ikramov Kh.D., “O vychislenii izotropnogo podprostranstva simmetrichnoi kvaziopredelennoi matritsy”, Vestnik Mosk. un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2018, no. 3, 3–5 |
50. |
Kh. D. Ikramov, “On congruent selection of the Jordan blocks from a singular square matrix”, Num. Anal. Appl., 11:3 (2018), 204–207 |
51. |
Kh. D. Ikramov, “O parametrakh singulyarnoi chasti regulyarizuyuschego razlozheniya Sergeichuka-Khorna”, Doklady Akademii nauk, 481:1 (2018), 7–9
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1
[x]
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52. |
Kh. D. Ikramov, Yu. O. Vorontsov, “Numerical solution of the discrete BHH-equation in the normal case”, Num. Anal. Appl., 11:4 (2018), 293–297 |
53. |
A. K. Abdikalykov, Kh. D. Ikramov, “Similarity and consimilarity automorphisms of the space of Toeplitz matrices”, Zap. Nauchn. Sem. POMI, 472, 2018, 5–16 |
54. |
Kh. D. Ikramov, “On a finite algorithm for calculating neutral subspaces of skew-symmetric matrices”, Computational methods and algorithms. Part XXXI, Zap. Nauchn. Sem. POMI, 472, POMI, St. Petersburg, 2018, 98–102 |
55. |
Kh. D. Ikramov, “Pseudo-orthogonal eigenvalues of skew-symmetric matrices”, Computational methods and algorithms. Part XXXI, Zap. Nauchn. Sem. POMI, 472, POMI, St. Petersburg, 2018, 92–97 |
56. |
Kh. D. Ikramov, “A rational criterion for congruence of square matrices”, Computational methods and algorithms. Part XXXI, Zap. Nauchn. Sem. POMI, 472, POMI, St. Petersburg, 2018, 88–91 |
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2017 |
57. |
Kh. D. Ikramov, “Checking the Congruence between Accretive Matrices”, Math. Notes, 101:6 (2017), 969–973 |
58. |
Kh. D. Ikramov, “O vychislenii neitralnykh podprostranstv kvadratnoi matritsy”, Vestnik Mosk. un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2017, no. 1, 13–15 |
59. |
V. N. Chugunov, Kh. D. Ikramov, “O klassifikatsii par antiperestanovochnykh teplitsevoi i gankelevoi matrits”, Doklady Akademii nauk, 476:3 (2017), 272–275 |
60. |
V. N. Chugunov, Kh. D. Ikramov, “A description of pairs of the quasi-commuting Toeplitz and Hankel matrices”, Num. Anal. Appl., 10:4 (2017), 358–361 |
61. |
Kh. D. Ikramov, Yu. O. Vorontsov, “Chislennoe reshenie matrichnykh uravnenii Silvestra s normalnymi koeffitsientami”, Vestnik Mosk. un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2017, no. 4, 3–6 |
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2018 |
62. |
Kh. D. Ikramov, V. N. Chugunov, “Description of pairs of anti-commuting Toeplitz and Hankel matrices”, J. Math. Sci. (N. Y.), 232:6 (2018), 848–891 |
63. |
Kh. D. Ikramov, “The minimal and characteristic polyanalytic polynomials of a normal matrix”, J. Math. Sci. (N. Y.), 232:6 (2018), 844–847 |
64. |
Kh. D. Ikramov, “The CMV-matrix and the generalized Lanczos process”, J. Math. Sci. (N. Y.), 232:6 (2018), 837–843 |
65. |
Kh. D. Ikramov, “Binormal matrices”, J. Math. Sci. (N. Y.), 232:6 (2018), 830–836 |
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2016 |
66. |
A. K. Abdikalykov, Kh. D. Ikramov, V. N. Chugunov, “A Duality Relation for Unitary Automorphisms in the Spaces of Toeplitz and Hankel Matrices”, Math. Notes, 99:1 (2016), 3–8 |
67. |
Kh. D. Ikramov, “Non-Hermitian Matrices of Even Order and Neutral Subspaces of Half the Dimension”, Math. Notes, 100:5 (2016), 720–723 |
68. |
Kh. D. Ikramov, V. N. Chugunov, “On conditions for permutability of Toeplitz and Hankel matrices”, Comput. Math. Math. Phys., 56:3 (2016), 354–357 |
69. |
Kh. D. Ikramov, “An analysis of the matrix equation $AX+\overline{X}B=C$”, Comput. Math. Math. Phys., 56:9 (2016), 1536–1539 |
70. |
V. N. Chugunov, Kh. D. Ikramov, “Classification of real pairs of commuting Toeplitz and Hankel matrices”, Num. Anal. Appl., 9:4 (2016), 359–368 |
71. |
Kh. D. Ikramov, “O konechnom ratsionalnom algoritme, proveryayuschem kongruentnuyu diagonalizuemost kvadratnoi matritsy”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2016, no. 2, 3–5 |
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2017 |
72. |
Kh. D. Ikramov, “The congruence centralizer of the Sergeichuk–Horn matrix”, J. Math. Sci. (N. Y.), 224:6 (2017), 883–889 |
73. |
Kh. D. Ikramov, “The congruence centralizer of a block diagonal matrix”, J. Math. Sci. (N. Y.), 224:6 (2017), 877–882 |
74. |
Kh. D. Ikramov, “On the congruent centralizer of the Jordan block”, J. Math. Sci. (N. Y.), 224:6 (2017), 869–876 |
75. |
Kh. D. Ikramov, “Decomposing pseudounitary and centrounitary matrices”, J. Math. Sci. (N. Y.), 224:6 (2017), 861–868 |
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2015 |
76. |
V. N. Chugunov, Kh. D. Ikramov, “Permutability of Toeplitz and Hankel matrices”, Linear Algebra and Its Applications, 467 (2015), 226–242
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8
[x]
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77. |
Kh. D. Ikramov, “Toeplitz-plus-Hankel circulants are reducible to block diagonal form via unitary congruences”, Linear Multilinear Algebra, 63:4 (2015), 862–867
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1
[x]
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78. |
A. K. Abdikalykov, V. N. Chugunov, Kh. D. Ikramov, “Unitary congruence automorphisms of the space of Toeplitz matrices”, Linear Multilinear Algebra, 63:6 (2015), 1195–1203
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3
[x]
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79. |
Kh. D. Ikramov, “Usloviya normalnosti lineinykh matrichnykh operatorov tipa Steina”, Doklady Akademii Nauk, 460:3 (2015), 269–271 |
80. |
Kh. D. Ikramov, “Normality conditions for the BHH matrix operator”, Linear Multilinear Algebra, 63:9 (2015), 1901–1908 |
81. |
Kh. D. Ikramov, V. N. Chugunov, “How to characterize $(T+H)$-matrices and $(T+H)$-circulants”, Comput. Math. Math. Phys., 55:2 (2015), 175–178 |
82. |
V. N. Chugunov, Kh. D. Ikramov, “A complete solution of the permutability problem for Toeplitz and Hankel matrices”, Linear Algebra and Its Applications, 478 (2015), 53–80
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1
[x]
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83. |
Kh. D. Ikramov, “O sobstvennykh vektorakh teplitsevykh matrits”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2015, no. 2, 25–28 |
84. |
Kh. D. Ikramov, “Unitary Automorphisms of the Space of Hankel Matrices: II. The Case of Even Order”, Math. Notes, 98:1 (2015), 90–97 |
85. |
V. N. Chugunov, Kh. D. Ikramov, “O klassifikatsii par perestanovochnykh teplitsevoi i gankelevoi matrits”, Doklady Akademii Nauk, 464:4 (2015), 406–410 |
86. |
A. K. Abdikalykov, Kh. D. Ikramov, V. N. Chugunov, “Unitarnye avtomorfizmy prostranstva (T+N)-matrits poryadka 4”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2015, no. 4, 3–6 |
87. |
Kh. D. Ikramov, “Normality conditions for semilinear matrix operators of the Stein type”, Num. Anal. Appl., 8:4 (2015), 299–303 |
88. |
A. K. Abdikalykov, V. N. Chugunov, Kh. D. Ikramov, “Unitary automorphisms of the space of Toeplitz-plus-Hankel matrices”, Special matrices, 3 (2015), 58–68 |
89. |
Kh. D. Ikramov, “Normality conditions for the matrix operator X —> AX + X*B”, Calcolo, 52:4 (2015), 495–502 |
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2016 |
90. |
Kh. D. Ikramov, “Isolation of the regular part of a singular matrix pencil as a rational algorithm”, J. Math. Sci. (N. Y.), 216:6 (2016), 792–794 |
91. |
Kh. D. Ikramov, “How to check whether given square matrices are congruent?”, J. Math. Sci. (N. Y.), 216:6 (2016), 787–791 |
92. |
Kh. D. Ikramov, “Neutral subspaces of complex matrices”, J. Math. Sci. (N. Y.), 216:6 (2016), 783–786 |
93. |
A. K. Abdikalykov, Kh. D. Ikramov, “On the eigenvalues of certain classes of normal Toeplitz-plus-Hankel matrices”, J. Math. Sci. (N. Y.), 216:6 (2016), 725–729 |
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2014 |
94. |
Kh. D. Ikramov, “O razreshimosti odnogo klassa polutoralineinykh matrichnykh uravnenii”, Doklady Akademii Nauk, 454:1 (2014), 265–267
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1
[x]
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95. |
Yu. O. Vorontsov, Khakim D. Ikramov, “Numerical solution of the matrix equations $AX+X^TB=C$ and $AX+X^*B=C$ in the self-adjoint case”, Comput. Math. Math. Phys., 54:2 (2014), 191–194 |
96. |
Yu. O. Vorontsov, Kh. D. Ikramov, “Numerical solution of the matrix equation $X-A\overline{X}B=C$ in the self-adjoint case”, Comput. Math. Math. Phys., 54:3 (2014), 379–381 |
97. |
Kh. D. Ikramov, “O razreshimosti odnogo klassa kvadratichnykh matrichnykh uravnenii”, Doklady Akademii Nauk, 455:2 (2014), 135–137 |
98. |
A. K. Abdikalykov, Kh. D. Ikramov, V. N. Chugunov, “On eigenvalues of $(T+H)$-circulants and $(T+H)$-skew-circulants”, Num. Anal. Appl., 7:2 (2014), 91–103 |
99. |
Kh. D. Ikramov, “Unitarnye avtomorfizmy prostranstva teplitsevykh matrits”, Doklady Akademii Nauk, 456:4 (2014), 389–391
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2
[x]
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100. |
Kh. D. Ikramov, V. N. Chugunov, A. K. Abdikalykov, “O lokalnykh usloviyakh, kharakterizuyuschikh mnozhestvo (T+N)-matrits”, Doklady Akademii nauk, 457:1 (2014), 17–18 |
101. |
Yu. O. Vorontsov, Kh. D. Ikramov, “Numerical solution of matrix equations of the Stein type in the self-adjoint case”, Comput. Math. Math. Phys., 54:5 (2014), 745–749 |
102. |
A. K. Abdikalykov, Kh. D. Ikramov, V. N. Chugunov, “Unitarnye kongruentsii i gankelevy matritsy”, Doklady Akademii Nauk, 457:5 (2014), 507–509
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1
[x]
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103. |
Yu. O. Vorontsov, Kh. D. Ikramov, “Numerical algorithm for solving sesquilinear matrix equations of a certain class”, Comput. Math. Math. Phys., 54:6 (2014), 915–918 |
104. |
Kh. D. Ikramov, “Unitary Automorphisms of the Space of Hankel Matrices”, Math. Notes, 96:5 (2014), 678–685 |
105. |
A. K. Abdikalykov, Kh. D. Ikramov, V. N. Chugunov, “O vychislenii sobstvennykh znachenii dlya nekotorykh klassov gankelevykh matrits”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2014, no. 1, 5–10 |
106. |
Kh. D. Ikramov, Yu. O. Vorontsov, “Chislennoe reshenie matrichnykh uravnenii Silvestra v samosopryazhennom sluchae”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2014, no. 2, 7–9 |
107. |
Kh. D. Ikramov, “Usloviya normalnosti matrichnykh uravnenii tipa Silvestra”, Doklady Akademii nauk, 459:4 (2014), 403–405 |
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2015 |
108. |
Kh. D. Ikramov, A. K. Abdikalykov, V. N. Chugunov, “Unitary automorphisms of the space of $3\times3$ Toeplitz-plus-Hankel matrices”, J. Math. Sci. (N. Y.), 207:5 (2015), 756–766 |
109. |
Kh. D. Ikramov, “Spectral decomposition of Hankel matrices of a special class”, J. Math. Sci. (N. Y.), 207:5 (2015), 753–755 |
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2014 |
110. |
A. K. Abdikalykov, Kh. D. Ikramov, V. N. Chugunov, “Some acceleration techniques for calculating the eigenvalues of normal Toeplitz matrices”, Comput. Math. Math. Phys., 54:12 (2014), 1761–1764 |
111. |
Yu. O. Vorontsov, Kh. D. Ikramov, “Numerical algorithm for solving quadratic matrix equations of a certain class”, Comput. Math. Math. Phys., 54:11 (2014), 1643–1646 |
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2013 |
112. |
Kh.D. Ikramov, “Gamiltonovy i kosogamiltonovy resheniya matrichnogo uravneniya X\bar X = A”, Doklady RAN, 448:2 (2013), 133–135 |
113. |
Kh.D. Ikramov, Yu.O. Vorontsov, “Matrichnye uravneniya AX + BX^T = C i AX + BX^* = C”, Doklady RAN, 449:5 (2013), 513–515 |
114. |
Kh.D. Ikramov, “Lineinye matrichnye uravneniya tipa Silvestra v samosopryazhennom sluchae”, Doklady RAN, 450:2 (2013), 147–149 |
115. |
Kh.D. Ikramov, “Usloviya samosopryazhennosti polulineinykh matrichnykh uravnenii”, Doklady RAN, 450:5 (2013), 511–513 |
116. |
Kh.D. Ikramov, “Usloviya samosopryazhennosti matrichnykh uravnenii tipa Steina”, Doklady RAN, 451:5 (2013), 498–500 |
117. |
Yu. O. Vorontsov, Khakim D. Ikramov, “Numerical algorithms for solving matrix equations $AX+BX^T=C$ and $AX+BX^*=C$”, Comput. Math. Math. Phys., 53:6 (2013), 667–676 |
118. |
Yu. O. Vorontsov, Khakim D. Ikramov, “Numerical solution of matrix equations of the form $X+AX^{\mathrm T}B=C$”, Comput. Math. Math. Phys., 53:3 (2013), 253–257 |
119. |
Kh. D. Ikramov, “Solutions to sesquilinear matrix equations: Conspectral approach”, Textos de Matematica, 44, Departamento de Matematica, Universidade de Coimbra, Coimbra, Portugal, 2013, 73–79 |
120. |
Kh. D. Ikramov, “Ekonomichnyi algoritm dlya vychisleniya psevdosobstvennykh znachenii kompleksnykh matrits, samosopryazhennykh v simplekticheskoi metrike”, Doklady Akademii Nauk, 453:6 (2013), 603–605 |
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2012 |
121. |
Kh. D. Ikramov, A. K. Abdikalykov, “On Unitary Transposable Matrices of Order Three”, Math. Notes, 91:4 (2012), 528–534 |
122. |
Kh.D. Ikramov, “Ob unitarnoi kongruentnosti vzaimno transponirovannykh matrits”, Doklady RAN, 442:1 (2012), 11–13 |
123. |
Kh.D. Ikramov, Yu.O. Vorontsov, “Matrichnoe uravnenie X + AX^T B: usloviya odnoznachnoi razreshimosti i algoritm chislennogo resheniya”, Doklady RAN, 443:5 (2012), 545–548 |
124. |
Kh.D. Ikramov, “Antilineinye operatory i simplekticheskaya matrichnaya algebra”, Doklady RAN, 444:4 (2012), 356–358 |
125. |
Kh.D. Ikramov, “Uravneniya vida X\bar X = A s kosogamiltonovymi matritsami A”, Doklady RAN, 444:5 (2012), 477–479 |
126. |
Yu. O. Vorontsov, Kh. D. Ikramov, “Conditions for unique solvability of the matrix equation $AX+X^\ast B=C$”, Comput. Math. Math. Phys., 52:5 (2012), 665–673 |
127. |
Kh. D. Ikramov, “Takagis decomposition of a symmetric unitary matrix as a finite algorithm”, Comput. Math. Math. Phys., 52:1 (2012), 1–3 |
128. |
Kh. D. Ikramov, “Effective Algorithms for Decomplexifying a Matrix by Unitary Similarities or Congruences”, Math. Notes, 92:6 (2012), 792–797 |
|
2013 |
129. |
Kh. D. Ikramov, “Unitary congruence to a conjugate-normal matrix”, J. Math. Sci. (N. Y.), 191:1 (2013), 72–74 |
130. |
Kh. D. Ikramov, “Solving systems of linear equations with quasi-Toeplitz coefficient matrices”, J. Math. Sci. (N. Y.), 191:1 (2013), 69–71 |
131. |
Kh. D. Ikramov, “Antilinear operators and special matrices”, J. Math. Sci. (N. Y.), 191:1 (2013), 65–68 |
132. |
Y. O. Vorontsov, Kh. D. Ikramov, “Numerical solution of the matrix equations $AX+X^TB=C$ and $X+AX^TB=C$ with rectangular coefficients”, J. Math. Sci. (N. Y.), 191:1 (2013), 28–30 |
|
2011 |
133. |
Kh. D. Ikramov, “Simultaneous reduction to block triangular form and theorems on pairs of complex idempotents”, Comput. Math. Math. Phys., 51:6 (2011), 915–918 |
134. |
Yu. O. Vorontsov, Kh. D. Ikramov, “A numerical algorithm for solving the matrix equation $AX+X^\mathrm TB=C$”, Comput. Math. Math. Phys., 51:5 (2011), 691–698 |
135. |
Kh. D. Ikramov, “On complex matrices with simple spectrum that are unitarily similar to real matrices”, Comput. Math. Math. Phys., 51:4 (2011), 505–512 |
136. |
Yu. A. Alpin, Kh. D. Ikramov, “Kriterii unitarnoi kongruentnosti matrits”, Dokl. RAN, 437:1 (2011), 7-8 |
137. |
Kh. D. Ikramov, “O konechnykh algoritmakh dlya proverki unitarnogo podobiya i unitarnoi kongruentnosti pary kompleksnykh matrits”, Dokl. RAN, 437:2 (2011), 151-153 |
|
2012 |
138. |
Kh. D. Ikramov, “Products of orthoprojectors and a theorem of Crimmins”, J. Math. Sci. (N. Y.), 182:6 (2012), 787–792 |
139. |
Kh. D. Ikramov, “On two-isometries in finite-dimensional spaces”, J. Math. Sci. (N. Y.), 182:6 (2012), 785–786 |
140. |
Kh. D. Ikramov, “Products of orthoprojectors and Hermitian matrices”, J. Math. Sci. (N. Y.), 182:6 (2012), 782–784 |
141. |
Kh. D. Ikramov, “How to distinguish between the latently real matrices and the block quaternions?”, J. Math. Sci. (N. Y.), 182:6 (2012), 779–781 |
142. |
Yu. A. Al'pin, Kh. D. Ikramov, “A criterion for unitary congruence between complex matrices”, J. Math. Sci. (N. Y.), 182:6 (2012), 748–753 |
143. |
A. K. Abdikalykov, Kh. D. Ikramov, “Simultaneous decomplexification of a pair of complex matrices via a unitary similarity transformation”, J. Math. Sci. (N. Y.), 182:6 (2012), 745–747 |
|
2011 |
144. |
Kh.D. Ikramov, Yu.O. Vorontsov, “Ob odnoznachnoi razreshimosti matrichnogo uravneniya AX + X^T B = C v singulyarnom sluchae”, Doklady RAN, 438:5 (2011), 599-602 |
145. |
Kh.D. Ikramov, A.K. Abdikalykov, “Ob odnom chastnom sluchae zadachi odnovremennogo oveschestvleniya pary kompleksnykh matrits posredstvom podobiya”, Doklady RAN, 439:4 (2011), 448-450 |
146. |
Kh.D. Ikramov, “Ob odnovremennom oveschestvlenii pary kompleksnykh matrits posredstvom unitarnoi kongruentsii”, Doklady RAN, 441:1 (2011), 7–9
|
1
[x]
|
147. |
Kh. D. Ikramov, “O pochti normalnykh matritsakh”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2011, no. 1, 5–9 |
|
2010 |
148. |
Kh. D. Ikramov, “Criteria for Unitary Congruence of Complex $2\times 2$ Matrices”, Math. Notes, 88:2 (2010), 228–237 |
149. |
Kh. D. Ikramov, “On Complex Matrices that Are Unitarily Similar to Real Matrices”, Math. Notes, 87:6 (2010), 821–827 |
|
2011 |
150. |
Kh. D. Ikramov, V. N. Chugunov, “A characterization of Toeplitz and Hankel circulants”, J. Math. Sci. (N. Y.), 176:1 (2011), 38–43 |
151. |
Kh. D. Ikramov, V. N. Chugunov, “On conjugate-normal $(T+H)$-circulants and skew-circulants”, J. Math. Sci. (N. Y.), 176:1 (2011), 32–37 |
152. |
Kh. D. Ikramov, “Unitary similarity of entrywise conjugate matrices and unitary decomplexification”, J. Math. Sci. (N. Y.), 176:1 (2011), 29–31 |
153. |
Kh. D. Ikramov, “On latently real matrices and block quaternions”, J. Math. Sci. (N. Y.), 176:1 (2011), 25–28 |
154. |
Kh. D. Ikramov, “On sufficient conditions for the existence of a unitary congruence transformation of a given complex matrix into a real one”, J. Math. Sci. (N. Y.), 176:1 (2011), 20–24 |
|
2010 |
155. |
Kh. D. Ikramov, Yu. O. Vorontsov, “On commutative algebras of Toeplitz-plus-Hankel matrices”, Comput. Math. Math. Phys., 50:5 (2010), 766–777 |
156. |
Kh. D. Ikramov, “On a constructive procedure for verifying whether a matrix can be made real by a unitary similarity transformation”, Comput. Math. Math. Phys., 50:3 (2010), 383–386 |
157. |
Kh. D. Ikramov, “Subdirect sums and differences for some classes of matrices”, Comput. Math. Math. Phys., 50:1 (2010), 7–11 |
158. |
V. N. Chugunov, Kh. D. Ikramov, “A complete solution of the normal Hankel problem”, Linear Algebra and Its Applications, 432 (2010), 3210-3230
|
7
[x]
|
159. |
Kh. D. Ikramov, “A note on complex matrices that are unitarily congruent to real matrices”, Linear Algebra and Its Applications, 433 (2010), 838-842
|
6
[x]
|
160. |
Kh. D. Ikramov, “O kompleksnykh matritsakh, oveschestvlyaemykh posredstvom unitarnogo podobiya”, Dokl. RAN, 430:1 (2010), 15-17 |
161. |
Kh. D. Ikramov, “Ob usloviyakh odnoznachnoi razreshimosti matrichnogo uravneniya $AX + X^T B = C$”, Dokl. RAN, 430:4 (2010), 444-447 |
162. |
Kh. D. Ikramov, “Klassy unitarnoi kongruentnosti kompleksnykh $2\times 2$-matrits”, Dokl. RAN, 431:1 (2010), 7-11
|
1
[x]
|
163. |
Kh. D. Ikramov, “O prostom lineino-algebraicheskom obosnovanii teoremy Shpekhta”, Dokl. RAN, 431:6 (2010), 739-740 |
164. |
Kh. D. Ikramov, “O konstruktivnykh dostatochnykh usloviyakh dlya suschestvovaniya unitarnogo podobiya, preobrazuyuschego zadannuyu kompleksnuyu matritsu v veschestvennuyu”, Dokl. RAN, 433:3 (2010), 305-308 |
165. |
Kh. D. Ikramov, “O matrichnom uravnenii $X\bar X = \bar X X$”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2010, no. 2, 7–10 |
|
2009 |
166. |
Kh. D. Ikramov, “Quadratically Normal Matrices of Type 1 and Unitary Similarities between Them”, Math. Notes, 86:3 (2009), 342–348 |
167. |
Kh. D. Ikramov, V. N. Chugunov, “On the Reduction of the Normal Hankel Problem to Two Particular Cases”, Math. Notes, 85:5 (2009), 674–681 |
|
2010 |
168. |
Kh. D. Ikramov, V. N. Chugunov, “On Toeplitz matrices that are simultaneously normal and conjugate-normal”, J. Math. Sci. (N. Y.), 165:5 (2010), 533–536 |
169. |
Kh. D. Ikramov, H. Fassbender, “Quadratically normal and congruence-normal matrices”, J. Math. Sci. (N. Y.), 165:5 (2010), 521–532 |
170. |
Kh. D. Ikramov, “Improved bounds for the recursion width in congruent type methods for solving systems of linear equations”, J. Math. Sci. (N. Y.), 165:5 (2010), 515–520 |
171. |
Kh. D. Ikramov, “Verifying unitary congruence of coninvolutions, skew-coninvolutions, and connilpotent matrices of index two”, J. Math. Sci. (N. Y.), 165:5 (2010), 511–514 |
|
2009 |
172. |
Kh. D. Ikramov, “On a recursive inverse eigenvalue problem”, Comput. Math. Math. Phys., 49:5 (2009), 743–747 |
173. |
M. Ghasemi Kamalvand, Kh. D. Ikramov, “Low-rank perturbations of symmetric matrices and their condensed forms under unitary congruences”, Comput. Math. Math. Phys., 49:4 (2009), 573–578 |
174. |
M. Ghasemi Kamalvand, Kh. D. Ikramov, “A method of congruent type for linear systems with conjugate-normal coefficient matrices”, Comput. Math. Math. Phys., 49:2 (2009), 203–216 |
175. |
V. N. Chugunov, Kh. D. Ikramov, “A contribution to the normal Hankel problem”, Linear Algebra and Its Applications, 430 (2009), 2094-2101
|
9
[x]
|
176. |
V. N. Chugunov, Kh. D. Ikramov, “The conjugate-normal Toeplitz matrix”, Linear Algebra and Its Applications, 430 (2009), 2467-2473
|
3
[x]
|
177. |
Kh. D. Ikramov, “On the matrix equation $X\overline X=A$”, Dokl. Math., 79:1 (2009), 53–55 |
178. |
Kh. D. Ikramov, V. N. Chugunov, “Classifying normal Hankel matrices”, Dokl. Math., 79:1 (2009), 114–117 |
179. |
Kh. D. Ikramov, “O kompleksnykh matritsakh Bentsi-Goluba”, Dokl. RAN, 426:2 (2009), 170-172
|
1
[x]
|
180. |
Kh. D. Ikramov, Yu. R. Nesterenko, “Teoremy tipa Vilandta-Khoffmana dlya psevdosobstvennykh znachenii kompleksnykh matrits”, Dokl. RAN, 427:4 (2009), 447-451 |
181. |
Gasemi Kamalvand M., Kh. D. Ikramov, “Malorangovye vozmuscheniya normalnykh i sopryazhenno-normalnykh matrits i ikh kompaktnye formy otnositelno unitarnykh podobii i kongruentsii”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2009, no. 3, 5–11 |
|
2008 |
182. |
Kh. D. Ikramov, V. N. Chugunov, “On Normal Hankel Matrices of Low Orders”, Math. Notes, 84:2 (2008), 197–206 |
|
2009 |
183. |
Kh. D. Ikramov, H. Fassbender, “On the product of two skew-Hamiltonian matrices or two skew-symmetric matrices”, J. Math. Sci. (N. Y.), 157:5 (2009), 697–700 |
184. |
Kh. D. Ikramov, “On the ranks of principal submatrices of diagonalizable matrices”, J. Math. Sci. (N. Y.), 157:5 (2009), 695–696 |
185. |
Kh. D. Ikramov, “Decomplexification of eigenvalue and coneigenvalue problems”, J. Math. Sci. (N. Y.), 157:5 (2009), 692–694 |
186. |
Kh. D. Ikramov, “Gaussian elimination and the ranks of the components in the Cartesian decomposition of a matrix”, J. Math. Sci. (N. Y.), 157:5 (2009), 689–691 |
|
2008 |
187. |
M. Van Barel, Kh. D. Ikramov, A. A. Chesnokov, “A continuation method for solving symmetric Toeplitz systems”, Comput. Math. Math. Phys., 48:12 (2008), 2126–2139 |
188. |
M. Ghasemi Kamalvand, Kh. D. Ikramov, “Reachability of condensed forms via unitary congruence transformations”, Comput. Math. Math. Phys., 48:8 (2008), 1261–1265 |
189. |
H. Fassbender, Kh. D. Ikramov, “A note on an unusual type of polar decomposition”, Linear Algebra and Its Applications, 429:1 (2008), 29-38
|
4
[x]
|
190. |
H. Fassbender, Kh. D. Ikramov, “Conjugate-normal matrices: A survey”, Linear Algebra and Its Applications, 429:7 (2008), 1425-1441
|
16
[x]
|
191. |
Kh. D. Ikramov, “Kanonicheskaya forma Shura matritsy s prostymi sobstvennymi znacheniyami”, Dokl. RAN, 420:2 (2008), 160-161 |
192. |
Kh. D. Ikramov, “Ob obuslovlennosti psevdosobstvennykh znachenii sopryazhenno-normalnykh matrits”, Dokl. RAN, 420:3 (2008), 306-308 |
193. |
Kh. D. Ikramov, “Ob inertsii komponent dekartova razlozheniya kvadratnoi matritsy”, Dokl. RAN, 421:6 (2008), 738-740 |
194. |
M. Gasemi Kamalvand, Kh. D. Ikramov, “O razmernosti mnogoobraziya sopryazhenno-normalnykh matrits”, Dokl. RAN, 423:6 (2008), 727-729 |
|
2007 |
195. |
Kh. D. Ikramov, “Reducing Complex Matrices to Condensed Forms by Unitary Congruence Transformations”, Math. Notes, 82:4 (2007), 492–500 |
|
2008 |
196. |
Kh. D. Ikramov, V. N. Chugunov, “On normal Hankel matrices”, J. Math. Sci. (N. Y.), 150:2 (2008), 1951–1960 |
197. |
Kh. D. Ikramov, H. Fassbender, “Simultaneous reduction to block triangular form by a unitary congruence transformation”, J. Math. Sci. (N. Y.), 150:2 (2008), 1943–1950 |
198. |
Kh. D. Ikramov, “On unitarily transposable matrices”, J. Math. Sci. (N. Y.), 150:2 (2008), 1937–1942 |
199. |
M. Ghasemi Kamalvand, Kh. D. Ikramov, “Conjugate-normal matrices with conjugate-normal submatrices”, J. Math. Sci. (N. Y.), 150:2 (2008), 1926–1928 |
|
2007 |
200. |
Kh. D. Ikramov, “O spetsialnykh resheniyakh matrichnykh uravnenii $X\bar X=I$ i $X\bar X=-I$”, Zh. vychisl. matem. i matem. fiz., 47:9 (2007), 1460–1466 |
201. |
Kh. D. Ikramov, “On tridiagonal conjugate-normal matrices”, Comput. Math. Math. Phys., 47:2 (2007), 173–179 |
202. |
Kh. D. Ikramov, “A note on the matrix equation $XA - AX = X^p$”, Linear Algebra and Its Applications, 424 (2007), 390-392 |
203. |
Kh. D. Ikramov, “On condiagonalizable matrices”, Linear Algebra and Its Applications, 424 (2007), 454-465 |
204. |
Kh. D. Ikramov, “Sopryazhenno-normalnye matritsy i matrichnye uravneniya otnositelno $A, \bar A$ i $A^T$”, Dokl. RAN, 412:3 (2007), 305-307
|
1
[x]
|
205. |
Kh. D. Ikramov, “Unitarnye kongruentsii i teoremy o psevdoperestanovochnykh matritsakh”, Dokl. RAN, 413:6 (2007), 727-729 |
206. |
Kh. D. Ikramov, “O konechnom ratsionalnom kriterii neprivodimosti matrits”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2007, no. 3, 16–18 |
207. |
Kh. D. Ikramov, V. N. Chugunov, “Ob odnom novom klasse normalnykh gankelevykh matrits”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2007, no. 1, 10–13 |
|
2006 |
208. |
Kh. D. Ikramov, “Equality Conditions for the Singular Values of $3\times 3$ Matrices with One-Point Spectrum”, Math. Notes, 80:2 (2006), 183–187 |
|
2007 |
209. |
Kh. D. Ikramov, V. N. Chugunov, “Several observations on Toeplitz and Hankel circulants”, J. Math. Sci. (N. Y.), 141:6 (2007), 1639–1642 |
210. |
Kh. D. Ikramov, “On the coneigenvalues and singular values of a complex square matrix”, J. Math. Sci. (N. Y.), 141:6 (2007), 1633–1638 |
211. |
M. Dana, Kh. D. Ikramov, “On rank-one corrections of complex symmetric matrices”, J. Math. Sci. (N. Y.), 141:6 (2007), 1614–1617 |
212. |
M. Dana, Kh. D. Ikramov, “Solving systems of linear equations whose matrices are low-rank perturbations of Hermitian matrices, revisited”, J. Math. Sci. (N. Y.), 141:6 (2007), 1608–1613 |
|
2006 |
213. |
M. Dana, Kh. D. Ikramov, “A numerical comparison of two minimal residual methods for linear polynomials in unitary matrices”, Comput. Math. Math. Phys., 46:12 (2006), 2040–2050 |
214. |
M. Dana, Kh. D. Ikramov, “A minimal residual method for linear polynomials in unitary matrices”, Comput. Math. Math. Phys., 46:6 (2006), 930–936 |
215. |
H. Fassbender, Kh. D. Ikramov, “SYMMLQ-like procedure for $Ax=b$ where $A$ is a special normal matrix”, Calcolo, 43 (2006), 17-37
|
4
[x]
|
216. |
Kh. D. Ikramov, “Kriterii unitarnoi kongruentnosti sopryazhenno-normalnykh matrits”, Dokl. RAN, 410:1 (2006), 17-18
|
1
[x]
|
217. |
Kh. D. Ikramov, Zadachnik po lineinoi algebre, 2-e izd., Lan, Sankt-Peterburg, Moskva, Krasnodar, 2006 , 320 pp. |
|
2005 |
218. |
Kh. D. Ikramov, A. M. Nazari, “Justification of a Malyshev-Type Formula in the Nonnormal Case”, Math. Notes, 78:2 (2005), 219–227 |
219. |
A. George, Kh. D. Ikramov, “On the Properties of Accretive-Dissipative Matrices”, Math. Notes, 77:6 (2005), 767–776 |
|
2006 |
220. |
Kh. D. Ikramov, A. M. Nazari, “On the 2-norm distance from a normal matrix to the set of matrices with a multiple zero eigenvalue”, J. Math. Sci. (N. Y.), 137:3 (2006), 4789–4793 |
221. |
Kh. D. Ikramov, “On the principal minors of a matrix with a multiple eigenvalue”, J. Math. Sci. (N. Y.), 137:3 (2006), 4787–4788 |
222. |
M. Dana, Kh. D. Ikramov, “On the codimension of the variety of symmetric matrices with multiple eigenvalues”, J. Math. Sci. (N. Y.), 137:3 (2006), 4787–4788 |
223. |
Yu. A. Alpin, Kh. D. Ikramov, “Unitary similarity of algebras generated by pairs of orthoprojectors”, J. Math. Sci. (N. Y.), 137:3 (2006), 4763–4768 |
|
2005 |
224. |
M. Dana, A. G. Zykov, Kh. D. Ikramov, “A minimal residual method for a special class of linear systems with normal coefficients matrices”, Comput. Math. Math. Phys., 45:11 (2005), 1854–1863 |
225. |
Kh. D. Ikramov, “On the Euclidean distance to the set of matrices with a multiple zero eigenvalue”, Comput. Math. Math. Phys., 45:4 (2005), 563–567 |
226. |
Kh. D. Ikramov, “On the singular values of a special 3-by-3 matrix: sufficient conditions for monotonicity along a ray”, Comput. Math. Math. Phys., 45:3 (2005), 366–373 |
227. |
Kh. D. Ikramov, “On the real stability radius of a normal matrix”, Comput. Math. Math. Phys., 45:2 (2005), 185–188 |
228. |
A. S. Buslenko, Kh. D. Ikramov, “On the multiplication of scalar and matrix power series”, Comput. Math. Math. Phys., 45:1 (2005), 1–4 |
229. |
H. Fassbender, Kh. D. Ikramov, “Several observations on symplectic, Hamiltonian, and skew-Hamiltonian matrices”, Linear Algebra and Its Applications, 400 (2005), 15-29
|
11
[x]
|
230. |
M. Dana, Kh. D. Ikramov, “O reshenii sistem lineinykh uravnenii, matritsy kotorykh yavlyayutsya malorangovymi vozmuscheniyami ermitovykh matrits”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2005, no. 4, 15–22 |
|
2004 |
231. |
Kh. D. Ikramov, A. M. Nazari, “Normal Matrices and an Extension of Malyshev"s Formula”, Math. Notes, 75:5 (2004), 608–616 |
232. |
Kh. D. Ikramov, A. A. Chesnokov, “On the Inverses of Brownian and Brownian-Like Matrices”, Math. Notes, 75:1 (2004), 83–92 |
|
2006 |
233. |
Kh. D. Ikramov, M. Matin far, “On the computer-algebra implementation of the least-squares method on the nonnegative orthant”, J. Math. Sci. (N. Y.), 132:2 (2006), 156–159 |
234. |
A. George, Kh. D. Ikramov, “A note on the canonical form for a pair of orthoprojectors”, J. Math. Sci. (N. Y.), 132:2 (2006), 153–155 |
|
2004 |
235. |
Kh. D. Ikramov, A. M. Nazari, “On the calculation of the closest matrix with a triple zero eigenvalue”, Comput. Math. Math. Phys., 44:12 (2004), 2011–2016 |
236. |
Kh. D. Ikramov, “On complex matrices, which are orthogonally equivalent to diagonal matrices”, Comput. Math. Math. Phys., 44:11 (2004), 1851–1852 |
237. |
Kh. D. Ikramov, M. Matin far, “Updating the minimum-norm solutions to the recursive least squares problem with linear equality constraints”, Comput. Math. Math. Phys., 44:10 (2004), 1640–1648 |
238. |
Kh. D. Ikramov, “Canonical forms of projectors with respect to unitary similarity and their applications”, Comput. Math. Math. Phys., 44:9 (2004), 1456–1461 |
239. |
M. Dana, Kh. D. Ikramov, “On low rank perturbations of the Hermitian and unitary matrices”, Comput. Math. Math. Phys., 44:8 (2004), 1259–1273 |
240. |
Kh. D. Ikramov, M. Matin far, A. A. Chesnokov, “Computer algebra procedures for the Drazin inversion of a singular matrix”, Comput. Math. Math. Phys., 44:7 (2004), 1093–1101 |
241. |
Kh. D. Ikramov, “On the dimension of the variety of symmetric matrices with multiple eigenvalues”, Comput. Math. Math. Phys., 44:6 (2004), 911–915 |
242. |
Kh. D. Ikramov, M. Matin far, “On computer-algebra procedures for linear least squares problems with linear inequality constraints”, Comput. Math. Math. Phys., 44:5 (2004), 727–731 |
243. |
Kh. D. Ikramov, M. Matin far, “On computer algebra procedures for a linear least squares problem with linear constraints”, Comput. Math. Math. Phys., 44:2 (2004), 190–196 |
244. |
Kh. D. Ikramov, A. M. Nazari, “Computational aspects of the use of Malyshev's formula”, Comput. Math. Math. Phys., 44:1 (2004), 1–5 |
245. |
A. George, Kh. D. Ikramov, “Gaussian elimination is stable for the inverse of a diagonally dominant matrix”, Mathematics of Computation, 73 (246) (2004), 653-657
|
8
[x]
|
246. |
A. George, Kh. D. Ikramov, “On the growth factor in Gaussian elimination for matrices with sharp angular field of values”, Calcolo, 41:1 (2004), 27-36
|
3
[x]
|
247. |
Kh. D. Ikramov, “Ob ortogonalnosti levykh i pravykh singulyarnykh vektorov”, Dokl. RAN, 397:2 (2004), 160-161 |
248. |
Kh. D. Ikramov, “Yavnye formuly dlya matritsy s kratnym sobstvennym znacheniem nul, blizhaishei k zadannoi normalnoi matritse”, Dokl. RAN, 398:5 (2004), 599-601
|
1
[x]
|
|
2003 |
249. |
Yu. A. Alpin, Kh. D. Ikramov, “On the Unitary Similarity of Matrix Families”, Math. Notes, 74:6 (2003), 772–782 |
250. |
Kh. D. Ikramov, A. M. Nazari, “On the Distance to the Closest Matrix with Triple Zero Eigenvalue”, Math. Notes, 73:4 (2003), 511–520 |
|
2005 |
251. |
A. George, Kh. D. Ikramov, “Block $LU$ factorization is stable for block matrices whose inverses are block diagonally dominant”, J. Math. Sci. (N. Y.), 127:3 (2005), 1962–1968 |
|
2003 |
252. |
Kh. D. Ikramov, M. Matin far, “Updating normal pseudo-solutions under rank-one modification of matrix”, Comput. Math. Math. Phys., 43:4 (2003), 469–481 |
253. |
Kh. D. Ikramov, M. Matin far, “On computer algebra procedures for matrix pseudoinversion”, Comput. Math. Math. Phys., 43:2 (2003), 157–161 |
254. |
Kh. D. Ikramov, A. M. Nazari, “On a metric problem for matrices”, Comput. Math. Math. Phys., 43:1 (2003), 1–9 |
255. |
H. Fassbender, Kh. D. Ikramov, “Computing matrix-vector products with centrosymmetric and centrohermitian matrices”, Linear Algebra and Its Applications, 364 (2003), 235-241
|
11
[x]
|
256. |
Kh. D. Ikramov, A. M. Nazari, “O blizhaishei matritse s kratnym sobstvennym znacheniem nul”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2003, no. 4, 20–24 |
257. |
Kh. D. Ikramov, “Ob odnom tipe predobuslovlivaniya dlya KKT-matrits”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2003, no. 2, 3–5 |
|
2002 |
258. |
Kh. D. Ikramov, “On a Remarkable Property of a Matrix of Mark Kac”, Math. Notes, 72:3 (2002), 325–330 |
259. |
Kh. D. Ikramov, “On the Matrix Equation $X^{-1}X^*=A$”, Math. Notes, 71:4 (2002), 500–504 |
|
2004 |
260. |
Kh. D. Ikramov, “Determinantal inequalities for accretive-dissipative matrices”, J. Math. Sci. (N. Y.), 121:4 (2004), 2458–2464 |
|
2002 |
261. |
Kh. D. Ikramov, “A linear-time algorithm for verifying the copositivity of an acyclic matrix”, Comput. Math. Math. Phys., 42:12 (2002), 1701–1703 |
262. |
Kh. D. Ikramov, “Reduction to the principal axes by means of pseudo-unitary and symplectic transformations”, Comput. Math. Math. Phys., 42:11 (2002), 1560–1562 |
263. |
A. George, Kh. D. Ikramov, “The closeness of certain classes of matrices with respect to pseudo-inversion”, Comput. Math. Math. Phys., 42:9 (2002), 1242–1246 |
264. |
Kh. D. Ikramov, “Unitary similarity of normal matrices from the viewpoint of Specht's criterion”, Comput. Math. Math. Phys., 42:8 (2002), 1065–1066 |
265. |
Kh. D. Ikramov, “On the condition of matrices that transform Hermitian pairs to diagonal form”, Comput. Math. Math. Phys., 42:5 (2002), 583–586 |
266. |
A. George, Kh. D. Ikramov, A. B. Kucherov, “On the growth factor in Gaussian elimination for generalized Higham matrices”, Numer. Linear Algebra Appl., 9:2 (2002), 107-114
|
21
[x]
|
267. |
A. George, Kh. D. Ikramov, “Unitary similarity of matrices with quadratic minimal polynomials”, Linear Algebra and Its Applications, 349 (2002), 11-16
|
10
[x]
|
268. |
D. Z. Djokovic, Kh. D. Ikramov, “On the congruence of square real matrices”, Linear Algebra and Its Applications, 353 (2002), 149-158
|
3
[x]
|
269. |
D. Z. Djokovic, Kh. D. Ikramov, “A square matrix is congruent to its transpose”, J. Algebra, 257:1 (2002), 97-105
|
7
[x]
|
270. |
Kh. D. Ikramov, “O kongruentnom privedenii matritsy k kvazidiagonalnomu vidu”, Dokl. RAN, 382:5 (2002), 589-592 |
271. |
Kh. D. Ikramov, “O nesuschestvovanii kriteriya tipa Shpekhta dlya proverki psevdounitarnogo podobiya”, Dokl. RAN, 383:1 (2002), 10-11 |
272. |
Yu. A. Alpin, Kh. D. Ikramov, “Ob unitarnom podobii semeistv matrits”, Dokl. RAN, 384:2 (2002), 151-152
|
1
[x]
|
273. |
Kh. D. Ikramov, V. N. Chugunov, “Neravenstva tipa Fishera i Adamara dlya akkretivno-dissipativnykh matrits”, Dokl. RAN, 384:5 (2002), 585-586
|
1
[x]
|
274. |
Kh. D. Ikramov, A. M. Nazari, “Ob odnom zamechatelnom sledstvii formuly Malysheva”, Dokl. RAN, 385:5 (2002), 599-600
|
5
[x]
|
275. |
Kh. D. Ikramov, “Invariantnost verkhnetreugolnogo mnozhitelya matritsy Vandermonda po otnosheniyu k sdvigam uzlov”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2002, no. 3, 9–11 |
276. |
Kh. D. Ikramov, “Vektornoe proizvedenie v kompleksnom trekhmernom prostranstve i kompleksnaya trekhmernaya algebra Li”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2002, no. 2, 3–6 |
277. |
Kh. D. Ikramov, “O klassifikatsii akkretivnykh matrits otnositelno ermitovykh kongruentsii”, Vestnik Moskovskogo un-ta. Seriya 1. Matematika. Mekhanika, 2002, no. 4, 23–26 |
|
2001 |
278. |
Kh. D. Ikramov, N. V. Savel'eva, “On two approaches to the common invariant subspace problem for a pair of matrices”, Comput. Math. Math. Phys., 41:4 (2001), 494–501 |
279. |
Kh. D. Ikramov, “Hamiltonian square roots of skew-Hamiltonian matrices revisited”, Linear Algebra and Its Applications, 325 (2001), 101-107
|
22
[x]
|
280. |
Kh. D. Ikramov, “Ob unitarnom podobii vzaimno transponirovannykh matrits”, Dokl. RAN, 378:5 (2001), 592-593
|
2
[x]
|
281. |
Kh. D. Ikramov, “Unitarnaya ekvivalentnost kak sledstvie podobiya i ermitovoi kongruentnosti”, Dokl. RAN, 379:6 (2001), 739-740 |
282. |
Kh. D. Ikramov, “O zakone inertsii dlya normalnykh matrits”, Dokl. RAN, 380:1 (2001), 7-8
|
1
[x]
|
283. |
Kh. D. Ikramov, “On a class of generalized orthogonal matrices”, Comput. Math. Math. Phys., 41:9 (2001), 1239–1245 |
284. |
Kh. D. Ikramov, “O sobstvennykh znacheniyakh i vektorakh magicheskikh kvadratov”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2001, 7–11 |
285. |
Kh. D. Ikramov, “O resheniyakh matrichnogo uravneniya AA* + A*A = A + A*”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2001, no. 1, 5–8 |
|
2000 |
286. |
Kh. D. Ikramov, V. N. Chugunov, “Matrix completion problems of block type”, Math. Notes, 67:6 (2000), 727–735 |
|
2003 |
287. |
Yu. A. Alpin, Kh. D. Ikramov, “Rational procedures in the problem of common invariant subspaces of two matrices”, J. Math. Sci. (N. Y.), 114:6 (2003), 1757–1764 |
|
2000 |
288. |
Kh. D. Ikramov, “On rational calculation of the invariant subspaces of a complex matrix”, Comput. Math. Math. Phys., 40:11 (2000), 1523–1524 |
289. |
Kh. D. Ikramov, “On Hermitian eigenvalue problems with additional Hamiltonian or skew-Hamiltonian structure”, Comput. Math. Math. Phys., 40:10 (2000), 1383–1386 |
290. |
Kh. D. Ikramov, “The canonical form as a tool for proving the properties of projectors”, Comput. Math. Math. Phys., 40:9 (2000), 1233–1238 |
291. |
Kh. D. Ikramov, “The quasidiagonalizability of oblique projectors as a particular case of the noncommutative spectral theorem”, Comput. Math. Math. Phys., 40:8 (2000), 1077–1084 |
292. |
A. George, Kh. D. Ikramov, “On the quasidiagonalizability of $3$-selfadjoint matrices”, Comput. Math. Math. Phys., 40:7 (2000), 923–932 |
293. |
Kh. D. Ikramov, “On a quasidiagonalizability criterion for real matrices”, Comput. Math. Math. Phys., 40:1 (2000), 4–17 |
294. |
Kh. D. Ikramov, N.V. Savel'eva, “Conditionally definite matrices”, J. Math. Sci. (New-York), 98:1 (2000), 1-50
|
25
[x]
|
295. |
Kh. D. Ikramov, V. N. Chugunov, “Inverse matrix eigenvalue problems”, J. Math. Sci. (New-York), 98:1 (2000), 51-136
|
10
[x]
|
296. |
Yu. A. Al'pin, L. Elsner, Kh. D. Ikramov, “On condensed forms for partially commuting matrices”, Linear Algebra and Its Applications, 306 (2000), 165-182
|
2
[x]
|
297. |
Yu. A. Al'pin, A. George, Kh. D. Ikramov, “Solving the two-dimensional CIS problem by a rational algorithm”, Linear Algebra and Its Applications, 312 (2000), 115-123
|
6
[x]
|
298. |
Yu. A Al'pin, Kh. D. Ikramov, “Reducibility theorems for pairs of matrices as rational criteria”, Linear Algebra and Its Applications, 313 (2000), 155-161
|
13
[x]
|
299. |
A. George, Kh. D. Ikramov, “The condition of symmetric quasi-definite matrices”, SIAM Journal on Matrix Analysis and Applications, 21:3 (2000), 970-977
|
3
[x]
|
300. |
A. George, Kh. D. Ikramov, A. B. Kucherov, “Some properties of symmetric quasi-definite matrices”, SIAM Journal on Matrix Analysis and Its Applications, 21:4 (2000), 1318-1323
|
10
[x]
|
301. |
Kh. D. Ikramov, A. B. Kucherov, “Bounding the growth factor in Gaussian elimination for Buckley's class of complex symmetric matrices”, Numer. Linear Algebra Appl., 7 (2000), 269-274
|
5
[x]
|
302. |
Yu. A. Alpin, Kh. D. Ikramov, “O ratsionalnoi protsedure, proveryayuschei nalichie dvumernogo obschego invariantnogo podprostranstva u zadannoi pary matrits”, Dokl. RAN, 371:4 (2000), 439-441
|
1
[x]
|
303. |
Yu. A. Alpin, Kh. D. Ikramov, “Summa sobstvennykh podprostranstv matritsy mozhet byt naidena ratsionalnym vychisleniem”, Dokl. RAN, 371:5 (2000), 583-584
|
1
[x]
|
304. |
Yu. A. Alpin, Kh. D. Ikramov, “O reshenii obobschennoi zadachi Dzhokovicha”, Dokl. RAN, 372:5 (2000), 583-585 |
305. |
Yu. A. Alpin, Kh. D. Ikramov, “Teoremy o privodimosti pary matrits kak ratsionalnye kriterii”, Dokl. RAN, 372:4 (2000), 439-441 |
306. |
Kh. D. Ikramov, “O vychislenii obschego sobstvennogo vektora dvukh matrits za konechnoe chislo arifmeticheskikh operatsii”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 2000, no. 1, 14–16 |
|
1999 |
307. |
A. George, Kh. D. Ikramov, “On quasidefinite matrices with a parameter in the off-diagonal block”, Comput. Math. Math. Phys., 39:10 (1999), 1553–1557 |
308. |
Kh. D. Ikramov, V. N. Chugunov, “Matrix completion problems with arbitrary locations of prescribed entries”, Comput. Math. Math. Phys., 39:9 (1999), 1367–1383 |
309. |
Kh. D. Ikramov, N. V. Savel'eva, “Copositive matrices”, Comput. Math. Math. Phys., 39:8 (1999), 1205–1227 |
310. |
Kh. D. Ikramov, V. N. Chugunov, “On computer algebra procedures constructing matrices with prescribed eigenvalues and diagonal entries”, Comput. Math. Math. Phys., 39:6 (1999), 842–847 |
311. |
Kh. D. Ikramov, N. V. Savel'eva, “Computer algebra procedures for verifying the definiteness of a matrix on a subspace”, Comput. Math. Math. Phys., 39:3 (1999), 337–349 |
312. |
A. George, Kh. D. Ikramov, “Common invariant subspaces of two matrices”, Linear Algebra and Its Applications, 287 (1999), 171-179
|
13
[x]
|
313. |
Kh. D. Ikramov, “An algebraic proof of a result by Gonzaga and Lara”, Linear Algebra and Its Applications, 299 (1999), 191-194
|
1
[x]
|
314. |
Kh. D. Ikramov, “Shin's formulas for eigenpairs of symmetric tridiagonal 2-Toeplitz matrices”, Bull. Austral. Math. Soc., 59 (1999), 119-120
|
2
[x]
|
315. |
Kh. D. Ikramov, “O matritsakh, spektr kotorykh predskazuemym obrazom reagiruet na perestanovki stolbtsov”, Dokl. RAN, 364:3 (1999), 310-312
|
1
[x]
|
316. |
Kh. D. Ikramov, “O vychislenii sobstvennykh znachenii matrits iz ortogonalnoi i unitarnoi simplekticheskikh grupp”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 1999, no. 2, 16–19 |
317. |
Kh. D. Ikramov, V. N. Chugunov, “Ob algebrakh, porozhdaemykh parami sopryazhennykh matrits”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 1999, no. 1, 49–50 |
|
1998 |
318. |
Kh. D. Ikramov, L. Él'zner, “On matrices that admit unitary reduction to band form”, Math. Notes, 64:6 (1998), 753–760 |
319. |
Kh. D. Ikramov, V. N. Chugunov, “On the skew-symmetric part of the product of Toeplitz matrices”, Math. Notes, 63:1 (1998), 124–127 |
320. |
Kh. D. Ikramov, N. V. Savel'eva, “On certain quasidiagonalizable families of matrices”, Comput. Math. Math. Phys., 38:7 (1998), 1026–1035 |
321. |
Kh. D. Ikramov, “On the pseudounitary $QR$ algorithm for pseudo-Hermitian matrices”, Comput. Math. Math. Phys., 38:5 (1998), 679–682 |
322. |
Kh. D. Ikramov, “On fast computation of a polynomial in the Frobenius matrix”, Comput. Math. Math. Phys., 38:4 (1998), 536–537 |
323. |
Kh. D. Ikramov, “On simultaneous reduction of a pair of oblique projectors to block triangular form”, Comput. Math. Math. Phys., 38:2 (1998), 173–174 |
324. |
Kh. D. Ikramov, “The dimension of the variety of normal matrices”, Comput. Math. Math. Phys., 38:1 (1998), 1–6 |
325. |
L. Elsner, Kh. D. Ikramov, “Normal matrices: an update”, Linear Algebra and Its Applications, 285 (1998), 291-303
|
40
[x]
|
326. |
Kh. D. Ikramov, V. N. Chugunov, “Ob obuslovlennosti sobstvennykh znachenii, blizkikh k granitse chislovogo obraza matritsy”, Dokl. RAN, 359:2 (1998), 159-160 |
327. |
Kh. D. Ikramov, “O proizvedeniyakh simmetrichnykh, kososimmetrichnykh, ermitovykh i involyutivnykh matrits”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 1998, no. 1, 8–11 |
|
1997 |
328. |
Kh. D. Ikramov, “On a description of normal Hankel matrices”, Fundam. Prikl. Mat., 3:3 (1997), 809–819 |
329. |
Kh. D. Ikramov, K. Uil'yamson, “On the Hegland–Marti inverse eigenvalue problem”, Math. Notes, 61:1 (1997), 120–124 |
330. |
Kh. D. Ikramov, “The canonical Schur form of a unitarily quasidiagonalizable matrix”, Comput. Math. Math. Phys., 37:12 (1997), 1367–1371 |
331. |
L. Elsner, Kh. D. Ikramov, “On a condensed form for normal matrices under finite sequences of elementary unitary similarities”, Linear Algebra and Its Applications, 254 (1997), 79-98
|
21
[x]
|
332. |
Kh. D. Ikramov, M. Yu. Ibragimov, “The Nekrasov property is hereditary for Gaussian elimination”, ZAMM, 77:5 (1997), 394-396
|
4
[x]
|
333. |
Kh. D. Ikramov, “Evenness of the Jordan structure of block quaternions with real spectra and its computational consequences”, Comput. Math. Math. Phys., 37:9 (1997), 993–997 |
334. |
Kh. D. Ikramov, “Normal band matrices”, Comput. Math. Math. Phys., 37:1 (1997), 1–4 |
335. |
Kh. D. Ikramov, “Neravenstvo Shura dlya psevdosobstvennykh znachenii i sopryazhenno-normalnye matritsy”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 1997, no. 3, 3–6 |
|
1996 |
336. |
Kh. D. Ikramov, “Normal dilatation of triangular matrices”, Math. Notes, 60:6 (1996), 649–657 |
337. |
Kh. D. Ikramov, “A method of recognizing a regular eigenvalue”, Comput. Math. Math. Phys., 36:8 (1996), 989–990 |
338. |
A. Dzhordzh, Kh. D. Ikramov, “On Hankel matrices that commute with tridiagonal matrices”, Comput. Math. Math. Phys., 36:7 (1996), 825–830 |
339. |
Kh. D. Ikramov, V. N. Chugunov, “Rational solvability of the inverse Silva problem”, Comput. Math. Math. Phys., 36:6 (1996), 703–708 |
340. |
Kh. D. Ikramov, “A canonical form for projectors under unitary similarity”, Comput. Math. Math. Phys., 36:3 (1996), 279–281 |
341. |
Kh. D. Ikramov, V. N. Chugunov, “A criterion for the normality of a complex Toeplitz matrix”, Comput. Math. Math. Phys., 36:2 (1996), 131–137 |
342. |
A. George, Kh. D. Ikramov, “Is the polar decomposition finitely computable?”, SIAM Journal on Matrix Analysis and Applications, 17:2 (1996), 348-354
|
4
[x]
|
343. |
A. George, Kh. D. Ikramov, W.-P. Tang, V. N. Chugunov, “On doubly symmetric tridiagonal forms for complex matrices and tridiagonal inverse eigenvalue problems”, SIAM Journal on Matrix Analysis and Applications, 17:3 (1996), 680-690
|
6
[x]
|
344. |
Kh. D. Ikramov, “O normalnykh dostraivaniyakh treugolnykh matrits”, Dokl. RAN, 351:1 (1996), 11-12 |
|
1995 |
345. |
Kh. D. Ikramov, “Classification of normal Toeplitz matrices with real entries”, Math. Notes, 57:5 (1995), 463–469 |
|
1998 |
346. |
Kh. D. Ikramov, L. Él'zner, “On normal matrices with normal principal submatrices”, J. Math. Sci. (New York), 89:6 (1998), 1631–1651 |
|
1995 |
347. |
Kh. D. Ikramov, D. A. Kushnereva, “On the features of the programmed realization of the Lanczos method for generalized symmetric matrices”, Comput. Math. Math. Phys., 35:12 (1995), 1527–1530 |
348. |
A. Dzhordzh, Kh. D. Ikramov, “Conditionality and expected error for two methods of computing the pseudo-eigenvalues of a complex matrix”, Comput. Math. Math. Phys., 35:11 (1995), 1403–1408 |
349. |
A. George, Kh. D. Ikramov, A. N. Krivoshapova, W.-P. Tang, “A finite procedure for the tridiagonalization of a general matrix”, SIAM Journal on Matrix Analysis and Applications, 16:2 (1995), 377-387
|
3
[x]
|
350. |
A. George, Kh. D. Ikramov, E. V. Matushkina, W.-P. Tang, “On a QR-like algorithm for some structured eigenvalue problems”, SIAM Journal on Matrix Analysis and Applications, 16:4 (1995), 1107-1126
|
14
[x]
|
|
1994 |
351. |
Kh. D. Ikramov, “Nonsymmetric Toeplitz matrices that commute with tridiagonal matrices”, Math. Notes, 55:5 (1994), 483–490 |
352. |
Kh. D. Ikramov, “Tridiagonal forms of complex symmetric and persymmetric matrices”, Comput. Math. Math. Phys., 34:11 (1994), 1463–1467 |
353. |
M. Yu. Ibragimov, Kh. D. Ikramov, N. V. Savel'eva, V. N. Chugunov, “The stabilizer of the set of asymmetric Toeplitz matrices”, Comput. Math. Math. Phys., 34:8-9 (1994), 1119–1123 |
354. |
Kh. D. Ikramov, “Describing normal Toeplitz matrices”, Comput. Math. Math. Phys., 34:3 (1994), 399–404 |
355. |
Kh. D. Ikramov, “On the unitary similarity of Hermitian Toeplitz matrices to real $(T+H)$- matrices”, Comput. Math. Math. Phys., 34:2 (1994), 253–256 |
356. |
Kh. D. Ikramov, “A simple proof of the generalized Schur inequality”, Linear Algebra and Its Applications, 199 (1994), 143-149
|
3
[x]
|
357. |
Kh. D. Ikramov, V. N. Chugunov, “On the Teng inverse eigenvalue problem”, Linear Algebra and Its Applications, 208/209 (1994), 397-399
|
2
[x]
|
|
1995 |
358. |
Kh. D. Ikramov, “The adjoint matrix of a normal matrix $A$ as a polynomial in $A$”, Dokl. Math., 50:2 (1995), 243–244 |
|
1993 |
359. |
Kh. D. Ikramov, “Symmetrization of complex normal matrices”, Comput. Math. Math. Phys., 33:6 (1993), 837–842 |
360. |
Kh. D. Ikramov, “Invariant subspaces of real matrix algebras and Burnside's theorem”, Comput. Math. Math. Phys., 33:5 (1993), 717–720 |
361. |
Kh. D. Ikramov, “The monotonicity of the eigenvalues of doubly symmetric matrices”, Comput. Math. Math. Phys., 33:4 (1993), 561–564 |
362. |
Kh. D. Ikramov, “Unitary-triangular factorizations of a normal matrix”, Comput. Math. Math. Phys., 33:3 (1993), 407–410 |
|
1992 |
363. |
Kh. D. Ikramov, “Algebraic properties of classes of concommuting and $H$-selfadjoint matrices”, Comput. Math. Math. Phys., 32:8 (1992), 1037–1048 |
364. |
Kh. D. Ikramov, “Some comments on the generalized Cholesky algorithm”, Comput. Math. Math. Phys., 32:7 (1992), 1007–1011 |
365. |
Kh. D. Ikramov, “Concommutativity classes generated by matrices with multiple conspectrum”, Comput. Math. Math. Phys., 32:6 (1992), 719–727 |
366. |
Kh. D. Ikramov, “Block symmetries in spectral problems for matrix bundles”, Comput. Math. Math. Phys., 32:1 (1992), 128–131 |
367. |
Kh. D. Ikramov, “Forma Shura kompleksnoi matritsy otnositelno psevdopodobiya i ee vychislenie”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 1992, no. 3, 46–53 |
|
1993 |
368. |
Kh. D. Ikramov, “Matrix pencils—theory, applications, numerical methods”, J. Soviet Math., 64:2 (1993), 783–853 |
|
1991 |
369. |
Kh. D. Ikramov, “The biorthogonal algorithm as the Lanczos method in a metric with indefinite sign”, U.S.S.R. Comput. Math. Math. Phys., 31:12 (1991), 99–101 |
370. |
Kh. D. Ikramov, “The conditions for the reducibility and canonical forms of Hamiltonian matrices with pure imaginary eigenvalues”, U.S.S.R. Comput. Math. Math. Phys., 31:8 (1991), 1–6 |
371. |
Kh. D. Ikramov, “Computing the eigenvalues of skew-symmetric matrices”, U.S.S.R. Comput. Math. Math. Phys., 31:6 (1991), 101–103 |
372. |
Kh. D. Ikramov, “O svyazi mezhdu biortogonalnym algoritmom i metodom Lantsosha v prostranstve s neznakoopredelennoi metrikoi”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 1991, no. 3, 19–23 |
373. |
Kh. D. Ikramov, Nesimmetrichnaya problema sobstvennykh znachenii, Nauka, Moskva, 1991 , 240 pp. |
|
1990 |
374. |
Kh. D. Ikramov, “The use of block symmetries to solve algebraic eigenvalue problems”, U.S.S.R. Comput. Math. Math. Phys., 30:6 (1990), 9–16 |
375. |
Kh. D. Ikramov, “Matrichnye uravneniya i problema sobstvennykh znachenii dlya gamiltonovykh i J-simmetrichnykh matrits”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 1990, no. 4, 40–44 |
|
1989 |
376. |
Kh. D. Ikramov, “A diagonalization theorem for a type of Hamiltonian using operator theory in spaces with an indefinite metric”, U.S.S.R. Comput. Math. Math. Phys., 29:1 (1989), 1–8 |
377. |
Kh. D. Ikramov, “Ob invariantnosti brauerovskogo diagonalnogo preobladaniya otnositelno gaussova isklyucheniya”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 1989, no. 2, 71–73 |
378. |
Kh. D. Ikramov, Vychislitelnye metody lineinoi algebry, Znanie, Moskva, 1989 , 44 pp. |
|
1988 |
379. |
Kh. D. Ikramov, “Undecomposable Hamiltonian matrices with pure imaginary spectrum”, U.S.S.R. Comput. Math. Math. Phys., 28:6 (1988), 203–207 |
380. |
Kh. D. Ikramov, “Singular values and polar factorization of an operator in a bilinear metric space”, U.S.S.R. Comput. Math. Math. Phys., 28:1 (1988), 85–87 |
381. |
Kh. D. Ikramov, “Ob obratnykh k matritsam s preobladayuschei blochnoi diagonalyu”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 1988, no. 2, 15–18 |
382. |
Kh. D. Ikramov, E. A. Zaikova, “J-singulyarnoe razlozhenie nevyrozhdennykh matrits chetnogo poryadka”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 1988, no. 1, 23–27 |
383. |
Kh. D. Ikramov, Chislennye metody dlya simmetrichnykh lineinykh sistem, Nauka, Moskva, 1988 , 160 pp. |
|
1987 |
384. |
Kh. D. Ikramov, “O J-singulyarnykh chislakh matritsy”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 1987, no. 2, 67–69 |
385. |
Kh. D. Ikramov, Chislennye metody lineinoi algebry, Znanie, Moskva, 1987 , 48 pp. |
386. |
Kh. D. Ikramov, “Sparse linear problems of the method of least squares”, J. Soviet Math., 39:6 (1987), 3148–3189 |
|
1985 |
387. |
Kh. D. Ikramov, “On the comparative value of Gaussian growth coefficients for mutually inverse matrices”, U.S.S.R. Comput. Math. Math. Phys., 25:1 (1985), 87–89 |
|
1984 |
388. |
Kh. D. Ikramov, “Multiplication of a perforated matrix by a vector”, U.S.S.R. Comput. Math. Math. Phys., 24:6 (1984), 84–86 |
389. |
Kh. D. Ikramov, Chislennoe reshenie matrichnykh uravnenii, Nauka, Moskva, 1984 , 190 pp. |
|
1983 |
390. |
Kh. D. Ikramov, “Growth of extradiagonal elements of a matrix in bordering methods”, U.S.S.R. Comput. Math. Math. Phys., 23:4 (1983), 138–139 |
391. |
Kh. D. Ikramov, “Duality relations connected with Gaussian elimination”, U.S.S.R. Comput. Math. Math. Phys., 23:1 (1983), 149–151 |
392. |
Kh. D. Ikramov, “O blochnom analoge svoistva diagonalnogo preobladaniya”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 1983, no. 4, 52–55 |
|
1986 |
393. |
Kh. D. Ikramov, “Sparse matrices”, J. Soviet Math., 34:3 (1986), 1697–1749 |
|
1982 |
394. |
Kh. D. Ikramov, N. V. Savina, “Appropriateness of uniform scaling of a matrix in the optimal elimination method”, U.S.S.R. Comput. Math. Math. Phys., 22:6 (1982), 229–232 |
395. |
Kh. D. Ikramov, “The analysis of rounding errors for non-orthogonal methods of solving linear algebraic systems”, U.S.S.R. Comput. Math. Math. Phys., 22:2 (1982), 1–11 |
396. |
Kh. D. Ikramov, “Ob ustoichivosti metoda Gaussa dlya matrits so znakoopredelennymi ermitovymi komponentami”, Vestnik Moskovskogo un-ta. Seriya 15. Vychisl. matematika i kibernetika, 1982, no. 2, 69–71 |
|
1981 |
397. |
Kh. D. Ikramov, “The complexity of some spectral problems for Toeplitz matrices”, U.S.S.R. Comput. Math. Math. Phys., 21:4 (1981), 216–221 |
398. |
Kh. D. Ikramov, “Some methods of using symmetry to reduce the order of linearly-algebraic problems”, U.S.S.R. Comput. Math. Math. Phys., 21:3 (1981), 240–245 |
|
1978 |
399. |
Kh. D. Ikramov, “The condition of intermediate matrices for Gauss, Jordan and optimal elimination methods”, U.S.S.R. Comput. Math. Math. Phys., 18:3 (1978), 1–16 |
|
1975 |
400. |
Kh. D. Ikramov, Zadachnik po lineinoi algebre, Nauka, Moskva, 1975 , 320 pp. |
|
1971 |
401. |
Kh. D. Ikramov, “The eigenvalues of principal submatrices of a normal matrix”, U.S.S.R. Comput. Math. Math. Phys., 11:6 (1971), 240–245 |
402. |
Kh. D. Ikramov, “An inclusion theorem for eigenvalues of tridiagonal matrices”, U.S.S.R. Comput. Math. Math. Phys., 11:5 (1971), 242–243 |
|
1970 |
403. |
Kh. D. Ikramov, “Some estimates for the eigenvalues of a matrix”, U.S.S.R. Comput. Math. Math. Phys., 10:1 (1970), 226–233 |
|
1969 |
404. |
Kh. D. Ikramov, “Representations of matrix norms”, U.S.S.R. Comput. Math. Math. Phys., 9:6 (1969), 180–188 |
405. |
Kh. D. Ikramov, N. V. Petri, “Matching of vector and matrix norms”, U.S.S.R. Comput. Math. Math. Phys., 9:5 (1969), 1–14 |
|
1968 |
406. |
N. V. Petri, Kh. D. Ikramov, “Extremal properties of some matrix norms”, U.S.S.R. Comput. Math. Math. Phys., 8:4 (1968), 219–230 |
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