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Semilinear Robin Problems with Indefinite Potential and Competition Phenomena

Semilinear Robin Problems with Indefinite Potential and Competition Phenomena We consider semilinear parametric Robin problems driven by the Laplacian plus an indefinite and unbounded potential. In the reaction we have two competing nonlinearities. However, the competition is different from the usual one in “concave-convex” problems. Using a combination of different tools we prove a multiplicity theorem producing seven nontrivial smooth solutions all with sign information (four of constant sign and three nodal). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Applicandae Mathematicae Springer Journals

Semilinear Robin Problems with Indefinite Potential and Competition Phenomena

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References (36)

Publisher
Springer Journals
Copyright
Copyright © Springer Nature B.V. 2019
Subject
Mathematics; Computational Mathematics and Numerical Analysis; Applications of Mathematics; Partial Differential Equations; Probability Theory and Stochastic Processes; Calculus of Variations and Optimal Control; Optimization
ISSN
0167-8019
eISSN
1572-9036
DOI
10.1007/s10440-019-00284-y
Publisher site
See Article on Publisher Site

Abstract

We consider semilinear parametric Robin problems driven by the Laplacian plus an indefinite and unbounded potential. In the reaction we have two competing nonlinearities. However, the competition is different from the usual one in “concave-convex” problems. Using a combination of different tools we prove a multiplicity theorem producing seven nontrivial smooth solutions all with sign information (four of constant sign and three nodal).

Journal

Acta Applicandae MathematicaeSpringer Journals

Published: Aug 2, 2020

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