Résumé

In the present paper, we investigate the following singular quasilinear elliptic system:
\\begin{equation*}\\tag{S}
\\left\\lbrace
\\begin{aligned}
\\left( -\\Delta \\right)_{p_{1}} ^{s_{1}}u&=\\dfrac{1}{u^{\\alpha _{1}}\\,v^{\\beta _{1}}}, \\, &u > 0 \\quad \\text{in}\\, \\Omega ;\\quad &u = 0, \\quad \\text{in }\\,\\mathbb{R}^{N}\\setminus \\Omega,\\vspace{0.2cm}\\\\
\\left( -\\Delta \\right)_{p_{2}} ^{s_{2}}v&=\\dfrac{1}{v^{\\alpha _{2}}\\,u^{\\beta _{2}}}, \\, &v > 0 \\quad \\text{in}\\, \\Omega ;\\quad &v = 0, \\quad \\text{in }\\,\\mathbb{R}^{N}\\setminus \\Omega,
\\end{aligned}\\right.
\\end{equation*}
where $ \\Omega\\subset \\mathbb{R}^{N} $ is an open bounded domain with smooth boundary, $s_{1}, s_{2} \\in (0,1) ,$ $ p_{1}, p_{2} \\in(1, +\\infty) $ and $\\alpha _{1},\\,\\alpha _{2},\\,\\beta _{1},\\,\\beta _{2}$ are positive constants. We first discuss the non-existence of positive classical solutions to system $\\text{(S)}.$
%Next, we prove existence, uniqueness and H\\\"{o}lder regularity of positive weak solutions.
Next, constructing suitable ordered pairs of sub- and supersolutions, we apply Schauder’s Fixed Point Theorem in the associated conical shell and get the existence of a positive weak solutions pair to $\\text{(S)}$, turn to be H\\\"older continuous. Finally, we apply a well-known Krasnoselski\\v{i}\'s argument to establish the uniqueness of such positive pair of solutions.

Information

Item Type:	Journal
Divisions:
ePrint ID:	5247
Date Deposited:	2024-12-17
Further Information:	Google Scholar
URI:	https://www.univ-soukahras.dz/fr/publication/article/5247

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