Emer Lopera, Leandro Recova, Adolfo Rumbos
Abstract:
In this work, we study the existence and multiplicity of solutions
to the problem
$$\displaylines{
-(\Delta)_p^s u + V(x)|u|^{p-2}u = \lambda f(u),\quad x\in\Omega;\cr
u=0,\quad x\in R^N\backslash\Omega,
}$$
where \(\Omega\subset R^N\) is an open bounded set with Lipschitz
boundary \(\partial\Omega\), \(N\geq 2\), \(V\in L^{\infty}(R^N)\),
and \((-\Delta)_p^s\) denotes the fractional p-Laplacian with
\(s\in(0,1)\), \(1
0\), and \(f:R\to R\) is a continuous function. We extend the results of Lopera et al. [22] by proving the existence of a second weak solution to this problem. We apply a variant of the mountain-pass theorem due to Hofer [15] and infinite-dimensional Morse theory to obtain the existence of at least two solutions.
Submitted July 15, 2024. Published November 11, 2024.
Math Subject Classifications: 35J20.
Key Words: Mountain pass theorem; Morse theory; critical groups; comparison principle.
DOI: 10.58997/ejde.2024.72
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Emer Lopera Universidad Nacional de Colombia Manizales, Colombia email: edloperar@unal.edu.co | |
Leandro Recôva California State Polytechnic University 3801 West Temple Avenue, Pomona, CA 91768, USA email: llrecova@cpp.edu | |
Adolfo Rumbos Pomona College Mathematics and Statistics Department 610 N. College Avenue, Claremont, CA 91711, USA email: arumbos@pomona.edu |
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