Electron. J. Differential Equations, Vol. 2024 (2024), No. 72, pp. 1-24.

Multiplicity results for Schrodinger type fractional p-Laplacian boundary value problems

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 \(s\in(0,1)\), \(10\), 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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