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- V. V. Karachik, “Solution to the Dirichlet Problem for the Polyharmonic Equation in the Ball”, Sib. Adv. Math., 32, № 3, 2022, 197

- V. V. Karachik, “The Green Function of the Navier Problem for the Polyharmonic Equation in a Ball”, J Math Sci, 269, № 2, 2023, 189

- Valery Karachik, “Riquier–Neumann Problem for the Polyharmonic Equation in a Ball”, Mathematics, 11, № 4, 2023, 1000

- V.V. Karachik, “A SOLUTION TO THE RIQUIER–NEYMANN PROBLEM FOR POLYHARMONIC EQUATIONS IN A BALL”, MMPh, 15, № 1, 2023, 26

- Valery Karachik, “Dirichlet and Neumann Boundary Value Problems for the Polyharmonic Equation in the Unit Ball”, Mathematics, 9, № 16, 2021, 1907

- Valery Karachik, “On Green’s Function of the Dirichlet Problem for the Polyharmonic Equation in the Ball”, Axioms, 12, № 6, 2023, 543

- 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, “Representation of the Green’s Function of the Dirichlet Problem for the Polyharmonic Equation in the Ball”, Diff Equat, 59, № 8, 2023, 1061

- V. V. Karachik, “On One Integral Representation of Solutions of Polyharmonic Equation”, Lobachevskii J Math, 44, № 7, 2023, 2749
