K. T. Karimov, “On a problem for a three-dimensional elliptic equation with Bessel operators”, Chelyab. Fiz.-Mat. Zh., 9:3 (2024), 375–388
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2.
A. K. Urinov, K. T. Karimov, “The Tricomi–Neymann problem for a three-dimensional mixed-type equation with singular coefficients”, Vladikavkaz. Mat. Zh., 25:4 (2023), 120–134
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K. T. Karimov, “The keldysh problem for a mixed-type three-dimensional equation with three singular coefficients”, Vestnik KRAUNC. Fiz.-Mat. Nauki, 34:1 (2021), 29–46
Kamoliddin T. Karimov, “Nonlocal problem for a three-dimensional elliptic equation with singular coefficients in a rectangular parallelepiped”, J. Sib. Fed. Univ. Math. Phys., 13:5 (2020), 533–546
A. K. Urinov, K. T. Karimov, “Nonlocal boundary value problems for a three-dimensional elliptic equation with singular coefficients in a semi-infinite parallelepiped”, Sib. Èlektron. Mat. Izv., 17 (2020), 161–178
K. T. Karimov, “Keldysh problem for a three-dimensional equation of mixed type with three singular coefficients in a semi-infinite parallelepiped”, Vestn. Udmurtsk. Univ. Mat. Mekh. Komp. Nauki, 30:1 (2020), 31–48
A. K. Urinov, K. T. Karimov, “On unique solvability of boundary-value problems for three-dimentional elliptic equation with three singular coefficients”, Izv. Vyssh. Uchebn. Zaved. Mat., 2019, no. 2, 69–81; Russian Math. (Iz. VUZ), 63:2 (2019), 62–73
A. K. Urinov, K. T. Karimov, “Dirichlet problem for an elliptic equation with three singular coefficients”, Itogi Nauki i Tekhniki. Sovrem. Mat. Pril. Temat. Obz., 156 (2018), 30–40; J. Math. Sci. (N. Y.), 254:6 (2021), 731–742
K. T. Karimov, “Spectral problems for three-dimensional elliptic equations with singular coefficients”, Vestnik KRAUNC. Fiz.-Mat. Nauki, 2017, no. 2(18), 7–19
10.
A. K. Urinov, K. T. Karimov, “The Dirichlet problem for a three-dimensional equation of mixed type with three singular coefficients”, Vestn. Samar. Gos. Tekhn. Univ., Ser. Fiz.-Mat. Nauki [J. Samara State Tech. Univ., Ser. Phys. Math. Sci.], 21:4 (2017), 665–683