Lobachevskii Journal of Mathematics, cilt.46, sa.1, ss.377-387, 2025 (ESCI)
Abstract: In this paper, we introduce the weighted grand Lebesgue class of harmonic function in unit ball on the complex plane. It is established some properties of functions from theseclasses, when the weight function satisfy the Muckenhoupt condition. It is proved the unique solvability of theDirichlet problem for Laplace equation with an arbitrary boundaryvalue from weighted grand Lebesgue space on.