|
|
|
Publications in Math-Net.Ru |
Citations |
|
2018 |
| 1. |
S. A. Pichugov, “Letter to the Editor”, Mat. Zametki, 104:6 (2018), 953    ; Math. Notes, 104:6 (2018), 944   |
|
2014 |
| 2. |
S. A. Pichugov, “Exact Constants in Jackson Inequalities for Periodic Differentiable Functions in the Space $L_\infty$”, Mat. Zametki, 96:2 (2014), 277–284  ; Math. Notes, 96:2 (2014), 261–267 |
| 3. |
V. F. Babenko, N. V. Parfinovich, S. A. Pichugov, “Kolmogorov-Type Inequalities for Norms of Riesz Derivatives of Functions of Several Variables with Laplacian Bounded in $L_\infty$ and Related Problems”, Mat. Zametki, 95:1 (2014), 3–17 ; Math. Notes, 95:1 (2014), 3–14 |
9
|
|
2013 |
| 4. |
S. A. Pichugov, “Sharp Constant in Jackson's Inequality with Modulus of Smoothness for Uniform Approximations of Periodic Functions”, Mat. Zametki, 93:6 (2013), 932–938 ; Math. Notes, 93:6 (2013), 917–922 |
2
|
|
2010 |
| 5. |
V. F. Babenko, S. A. Pichugov, “Sharp Estimates of the Norms of Fractional Derivatives of Functions of Several Variables Satisfying Hölder Conditions”, Mat. Zametki, 87:1 (2010), 26–34 ; Math. Notes, 87:1 (2010), 23–30 |
9
|
|
1999 |
| 6. |
V. F. Babenko, V. A. Kofanov, S. A. Pichugov, “On inequalities of Landau–Kolmogorov–Hörmander type on the semi-axis”, Mat. Zametki, 65:2 (1999), 175–185 ; Math. Notes, 65:2 (1999), 144–152 |
|
1998 |
| 7. |
V. F. Babenko, V. A. Kofanov, S. A. Pichugov, “Additive inequalities for intermediate derivatives of differentiable mappings of Banach spaces”, Mat. Zametki, 63:3 (1998), 332–342 ; Math. Notes, 63:3 (1998), 293–301 |
2
|
|
1994 |
| 8. |
S. A. Pichugov, “Sequences of operators that are bounded in measure”, Dokl. Akad. Nauk, 334:6 (1994), 696–698 ; Dokl. Math., 49:1 (1994), 198–201 |
| 9. |
S. A. Pichugov, “Sequences of operators bounded in measure”, Mat. Sb., 185:1 (1994), 43–72 ; Russian Acad. Sci. Sb. Math., 81:1 (1995), 35–58 |
2
|
|
1991 |
| 10. |
S. A. Pichugov, “Estimates of norms of operators that are continuous in measure”, Mat. Zametki, 50:1 (1991), 146–148 ; Math. Notes, 50:1 (1991), 760–761 |
5
|
|
1990 |
| 11. |
V. I. Ivanov, S. A. Pichugov, “Jung constants of the $l_p^n$-spaces”, Mat. Zametki, 48:4 (1990), 37–47 ; Math. Notes, 48:4 (1990), 997–1004 |
9
|
|
1988 |
| 12. |
S. A. Pichugov, “Jung's constant for the space $L_p$”, Mat. Zametki, 43:5 (1988), 604–614 ; Math. Notes, 43:5 (1988), 348–354 |
15
|
|
1987 |
| 13. |
V. I. Ivanov, S. A. Pichugov, “Approximation of periodic functions in $L_p$ by linear positive methods and multiple moduli of continuity”, Mat. Zametki, 42:6 (1987), 776–785 ; Math. Notes, 24:6 (1987), 925–930 |
3
|
| 14. |
V. F. Babenko, S. A. Pichugov, “On inequalities for polynomials with real roots”, Trudy Mat. Inst. Steklov., 180 (1987), 35–36 ; Proc. Steklov Inst. Math., 180 (1989), 37–39 |
|
1986 |
| 15. |
V. F. Babenko, S. A. Pichugov, “An exact inequality for the derivative of a trigonometric polynomial having only real zeros”, Mat. Zametki, 39:3 (1986), 330–336 ; Math. Notes, 39:3 (1986), 179–182 |
5
|
|
1980 |
| 16. |
S. A. Pichugov, “Exact constant of approximation in the mean of Liouville's class by entire functions”, Izv. Vyssh. Uchebn. Zaved. Mat., 1980, no. 8, 63–65 ; Soviet Math. (Iz. VUZ), 24:8 (1980), 70–73 |
| 17. |
V. F. Babenko, S. A. Pichugov, “Best linear approximation of some classes of differentiable periodic functions”, Mat. Zametki, 27:5 (1980), 683–689 ; Math. Notes, 27:5 (1980), 325–329 |
|
1979 |
| 18. |
S. A. Pichugov, “On the multidimensional Jackson theorem for linear polynomial approximations”, Dokl. Akad. Nauk SSSR, 245:4 (1979), 792–794 |
|
1978 |
| 19. |
S. A. Pichugov, “Approximation of continuous functions on a segment by linear methods”, Mat. Zametki, 24:3 (1978), 343–348 ; Math. Notes, 24:3 (1978), 684–687 |
|
| Organisations |
|
| |
|
|
Contact us: