A three critical point result in a bounded domain of a Banach space and applications

Abstract

Using the bounded mountain pass lemma and the Ekeland variational principle, we prove a bounded version of the Pucci-Serrin three critical points result in the intersection of a ball with a wedge in a Banach space. The localization constraints are overcome by boundary and invariance conditions. The result is applied to obtain multiple positive solutions for some semilinear problems.

Authors

Radu Precup
Department of Mathematics Babes-Bolyai University, Cluj-Napoca, Romania

Patrizia Pucci
Dipartimento di Matematica e Informatica (DMI) Università di Perugia 06100 Perugia, ITALY

Csaba Varga
Department of Mathematics Babes-Bolyai University, Cluj-Napoca, Romania

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Paper coordinates

R. Precup, P. Pucci, C. Varga, A three critical point result in a bounded domain of a Banach space and applications, Differential Integral Equations 30 (2017), no. 7-8, 555-568.

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Differential Integral Equations

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