Moldir Muratbekova, Valery Karachik, Batirkhan Turmetov, “Bitsadze-Samarsky type problems with double involution”, Bound Value Probl, 2024:1 (2024)
V. V. Karachik, “Reshenie zadachi Rike-Neimana dlya poligarmonicheskogo uravneniya v share”, Vestn. Yuzhno-Ur. un-ta. Ser. Matem. Mekh. Fiz., 15:1 (2023), 26–33
Valery Karachik, “Riquier–Neumann Problem for the Polyharmonic Equation in a Ball”, Mathematics, 11:4 (2023), 1000
V. V. Karachik, “The Green Function of the Navier Problem for the Polyharmonic Equation in a Ball”, J Math Sci, 269:2 (2023), 189
Karachik V., “Green'S Functions of Some Boundary Value Problems For the Biharmonic Equation”, Complex Var. Elliptic Equ., 67:7 (2022), 1712–1736
B. Kh. Turmetov, V. V. Karachik, “Zadacha Neimana dlya nelokalnogo bigarmonicheskogo uravneniya”, Vestn. Yuzhno-Ur. un-ta. Ser. Matem. Mekh. Fiz., 14:2 (2022), 51–58
Mohamed Akel, Heinrich Begehr, Alip Mohammed, “Integral representations in the complex plane and iterated boundary value problems”, Rocky Mountain J. Math., 52:2 (2022)
Valery Karachik, Batirkhan Turmetov, Hongfen Yuan, “Four Boundary Value Problems for a Nonlocal Biharmonic Equation in the Unit Ball”, Mathematics, 10:7 (2022), 1158
V. V. Karachik, “Green's functions of the Navier and Riquier-Neumann problems for the biharmonic equation in the ball”, Differ. Equ., 57:5 (2021), 654–668
V. V. Karachik, “The Green Function of the Dirichlet Problem for the Triharmonic Equation in the Ball”, Math. Notes, 107:1 (2020), 105–120