arXiv subjects

Abdelkrim Barbara

Publications and source records attributed to Abdelkrim Barbara.

2 recordsLinked to original sources

arXiv2025

Embedding Results and Fractional $p(x,.)$-Laplacian Problem in Unbounded Domains

In this paper, we prove a new continuous embedding theorem for fractional Sobolev spaces with variable exponents into variable exponent Lebesgue spaces on unbounded domains. As an application, we study a class of nonlocal elliptic problems driven by the fractional $p(x, \cdot)$-Laplacian operator. Using variational methods combined with the established embedding result, we prove the existence of nontrivial weak solutions under suitable growth and regularity conditions on the nonlinearity.\\ A significant analytical challenge addressed in this work arises from both the nonlocal behavior of the fractional $p(x, \cdot)$-Laplacian and the lack of compactness induced by the unboundedness of the domain.

math.AP↗

arXiv2024

Anisotropic fractional Sobolev spaces with variable exponent and application to nonlocal problems

The main goal of this paper is to introduce a new fractional anisotropic Sobolev space with variable exponent where the basic qualitative properties (completeness, separability, reflexivity, ...) are established, including the continuous and compact embedding results. Moreover, some functional proprieties of anisotropic fractional $\vec{p}(.,.)$-Laplacian operator are proved. As an application, we use the mountain pass theorem and Ekeland's variational principle to ensure the existence of a weak solution for a nonlocal anisotropic problem with variable exponent.

math.AP↗