@Article{Zhang2026,
author = "Zhang, Zhenfeng and Ghasemi, Mina and Vetro, Calogero",
title = "Galerkin-type minimizers to a competing problem for \((\vec{p},\vec{q})\)-Laplacian with variable exponents",
journal = "Opuscula Math.",
year = "2026",
volume = "46",
number = "1",
pages = "101--119",
doi = "https://doi.org/10.7494/OpMath.202511231",
url = "https://doi.org/10.7494/OpMath.202511231",
abstract = "This study focuses on a sequence of approximate minimizers for the functional \[J(u)=\int\limits_{\Omega}\sum\limits_{i=1}^{N}\frac{1}{p_{i}(x)}\bigg|\frac{\partial u}{\partial x_{i}}\bigg|^{p_{i}(x)}dx-\mu\int\limits_{\Omega}\sum\limits_{i=1}^{N}\frac{1}{q_{i}(x)}\bigg|\frac{\partial u}{\partial x_{i}}\bigg|^{q_{i}(x)}dx-\int\limits_{\Omega} F(u(x))dx,\] where \(\Omega\subset\mathbb{R}^N\) (\(N\geq 3\)) is a bounded domain, and \(p_i,q_i\in C(\overline{\Omega})\) with \(1\lt p_i,q_i\lt +\infty\) for all \(i \in \{1,\ldots,N\}\). We establish the convergence result to the infimum of \(J(u)\) when \(F:\mathbb{R}\to\mathbb{R}\) is a locally Lipschitz function of controlled growth, following the Galerkin method. As an application, we establish the existence of solutions to a class of Dirichlet inclusions associated to the functional.",
keywords = "anisotropic Sobolev space, Clarke generalized gradient, Dirichlet problem, Galerkin basis, \((\vec{p},\vec{q})\)-Laplacian with variable exponents",
issn = "1232-9274"
}