carpathian_2025_41_4_937-950

Leray Schauder topological degree for nonlinear elliptic PDEs driven by the A_p(·)-Laplacian operator


Abderrahim Charkaoui, Anass Bouchriti, Ghita El Guermai


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abstract_carpathian_2025_41_4_937-950

https://doi.org/10.37193/CJM.2025.04.05

 

Published on 5 July 2025

Abstract.

This study explores a class of elliptic problems with variable exponents, governed by the \mathcal{A}_{p(x)}-Laplacian operator. A novel approach is proposed by reformulating the problem as an equivalent fixed-point problem within a suitable variable exponent space. By combining variational methods with Leray-Schauder topological degree theory, we establish the existence of weak solutions for the investigated problems.