- Hongfen Yuan, Valery Karachik, “Solutions of Umbral Dirac-Type Equations”, Mathematics, 12, no. 2, 2024, 344
- Valery Karachik, Batirkhan Turmetov, Hongfen Yuan, “Four Boundary Value Problems for a Nonlocal Biharmonic Equation in the Unit Ball”, Mathematics, 10, no. 7, 2022, 1158
- Hongfen Yuan, Valery Karachik, “Dirichlet and Neumann Boundary Value Problems for Dunkl Polyharmonic Equations”, Mathematics, 11, no. 9, 2023, 2185
- V. V Karachik, “Representation of the Green’s Function of the Dirichlet Problem for the Polyharmonic Equation in the Ball”, Differencialʹnye uravneniâ, 59, no. 8, 2023, 1057
- M. O. Abbasova, T. G. Ergashev, T. K. Yuldashev, “Dirichlet Problem for the Laplace Equation in the Hyperoctant of a Multidimensional Ball”, Lobachevskii J Math, 44, no. 3, 2023, 1072
- T. G. Ergashev, M. O. Abbasova, “Holmgren’s Problem for the Laplace Equation in the Hyperoctant of a Multidimensional Ball”, Lobachevskii J Math, 43, no. 6, 2022, 1303
- V. V. Karachik, “Representation of the Green’s Function of the Dirichlet Problem for the Polyharmonic Equation in the Ball”, Diff Equat, 59, no. 8, 2023, 1061
- Valery Karachik, “On Green’s Function of the Dirichlet Problem for the Polyharmonic Equation in the Ball”, Axioms, 12, no. 6, 2023, 543
- Cristina B. Corcino, Roberto B. Corcino, Baby Ann A. Damgo, Joy Ann A. Cañete, “Integral Representation and Explicit Formula at Rational Arguments for Apostol–Tangent Polynomials”, Symmetry, 14, no. 1, 2021, 35
- Valery Karachik, “Riquier–Neumann Problem for the Polyharmonic Equation in a Ball”, Mathematics, 11, no. 4, 2023, 1000