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JOURNALS // Siberian Journal of Pure and Applied Mathematics // Archive

Sib. J. Pure and Appl. Math., 2016 Volume 16, Issue 2, Pages 26–40 (Mi vngu400)

This article is cited in 1 paper

Qualitative properties of solutions of elliptic equations with non-power nonlinearities in $\mathbb{R}_n$

L. M. Kozhevnikovaa, A. A. Nikitinab

a Sterlitamak Branch of Bashkir State University
b Tyumen State University

Abstract: Some class of anisotropic elliptic equations with non-power nonlinearities in space $\mathbb{R}_n$ is considered
$$ -\sum\limits_{\alpha=1}^{n}(a_{\alpha}(\mathrm{x},u_{x_{\alpha}}))_{x_{\alpha}}+a_0(\mathrm{x},u)=F_0( \mathrm{x}).$$
The theorem of existence of solutions in local Sobolev–Orlicz spaces without restrictions on data growth on infinity is proved. Conditions on structure of an equation, sufficient for uniqueness of solutions, without restrictions on its growth on infinity are found. The power estimate characterizing the behavior of the solution at infinity is installed. The continuous dependence of solution on right side of solution is proved.

Keywords: anisotropic elliptic equations, nonpower nonlinearity, Sobolev–Orlicz space, unbounded domains.

UDC: 517.956.25

Received: 25.12.2015


 English version:
Journal of Mathematical Sciences, 2018, 228:4, 395–408


© Steklov Math. Inst. of RAS, 2025