Résumé

In this article, we prove new discrete Picone inequalities, associated to non local elliptic operators as the fractional $ p- $Laplace operator, denoted by $\\left( -\\Delta \\right) ^{s}_{p} u$ and defined as:
$$ \\left( -\\Delta \\right) ^{s}_{p} u(x) := 2\\, \\text{\\textbf{P.V.}} \\int_{\\mathbb{R}^{N}}\\dfrac{\\left| u(x) - u(y)\\right| ^{p-2}(u(x) - u(y))}{\\left| x-y\\right|^{N + ps} }\\,dy $$
where $ p>1, $ $ 0 < s < 1 $ and \\textbf{P.V.} denotes the Cauchy principal value. As applications, we provide new results about existence, non-existence and uniqueness of weak positive solutions to problems involving fractional and non homogeneous operators as $ (-\\Delta)_{p}^{s_{1}} + (-\\Delta)_{q}^{s_{2}}$, where $ s_{1}, s_{2} \\in (0,1) $ and $ 1 < q, p<\\infty$. In addition, for this class of operators, we obtain comparison principles, a Sturmian comparison principle and a Hardy-type inequality with weight. Finally, we also establish some qualitative results for nonlinear and non local elliptic systems with sub-homogeneous growth.

Information

Item Type:	Journal
Divisions:
ePrint ID:	5246
Date Deposited:	2024-12-17
Further Information:	Google Scholar
URI:	https://www.univ-soukahras.dz/fr/publication/article/5246

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