V. Karachik, “Solvability of the Neumann Boundary Value Problem for the Polyharmonic Equation in a Ball”, Lobachevskii J Math, 45:8 (2024), 3559
V. V. Karachik, “Solution to the Dirichlet Problem for the Polyharmonic Equation in the Ball”, Sib. Adv. Math., 32:3 (2022), 197
В. В. Карачик, “Решение задачи Дирихле для полигармонического уравнения в шаре”, Матем. тр., 24:2 (2021), 46–64
Karachik V., “Dirichlet and Neumann Boundary Value Problems For the Polyharmonic Equation in the Unit Ball”, Mathematics, 9:16 (2021), 1907
В. В. Карачик, “Функция Грина задачи Дирихле для $3$-гармонического уравнения в шаре”, Матем. заметки, 107:1 (2020), 87–105 ; V. V. Karachik, “The Green Function of the Dirichlet Problem for the Triharmonic Equation in the Ball”, Math. Notes, 107:1 (2020), 105–120
A. Benrabah, N. Boussetila, F. Rebbani, “Modified auxiliary boundary conditions method for an ill-posed problem for the homogeneous biharmonic equation”, Math. Meth. Appl. Sci., 43:1 (2020), 358–383
В. В. Карачик, “Класс задач типа Неймана для полигармонического уравнения в шаре”, Ж. вычисл. матем. и матем. физ., 60:1 (2020), 132–150 ; V. V. Karachik, “Class of Neumann-type problems for the polyharmonic equation in a ball”, Comput. Math. Math. Phys., 60:1 (2020), 144–162
Oleg D. Algazin, “EXACT SOLUTIONS TO THE BOUNDARY-VALUE PROBLEMS FOR THE HELMHOLTZ EQUATION IN A LAYER WITH POLYNOMIALS IN THE RIGHT-HAND SIDES OF THE EQUATION AND OF THE BOUNDARY CONDITIONS”, Bulletin of the MSRU (Physics and Mathematics), 2020, no. 1, 6
Ya. О. Baranetskij, P. І. Kalenyuk, М. І. Kopach, “Nonlocal Multipoint Problem for Partial Differential Equations of Even Order with Constant Coefficients”, J Math Sci, 249:3 (2020), 307
V. V. Karachik, “Neumann Type Problems for the Polyharmonic Equation in Ball”, J Math Sci, 249:6 (2020), 974