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JOURNALS // Matematicheskii Sbornik // Archive

Mat. Sb., 2022 Volume 213, Number 4, Pages 38–73 (Mi sm9632)

This article is cited in 7 papers

Existence of solutions of nonlinear elliptic equations with measure data in Musielak-Orlicz spaces

A. P. Kashnikovaa, L. M. Kozhevnikovaab

a Sterlitamak Branch of Bashkir State University, Sterlitamak, Russia
b Elabuga Branch of Kazan (Volga region) Federal University, Elabuga, Russia

Abstract: A second-order quasilinear elliptic equation with a measure of special form on the right-hand side is considered. Restrictions on the structure of the equation are imposed in terms of a generalized $N$-function such that the conjugate function obeys the $\Delta_2$-condition and the corresponding Musielak-Orlicz space is not necessarily reflexive. In an arbitrary domain satisfying the segment property, the existence of an entropy solution of the Dirichlet problem is proved. It is established that this solution is renormalized.
Bibliography: 29 titles.

Keywords: quasilinear elliptic equation, entropy solution, renormalized solution, unbounded domain, diffuse measure, Musielak-Orlicz space.

MSC: Primary 35J62; Secondary 35J15

Received: 29.06.2021 and 21.11.2021

DOI: 10.4213/sm9632


 English version:
Sbornik: Mathematics, 2022, 213:4, 476–511

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© Steklov Math. Inst. of RAS, 2025