School of Mathematical and Statistical Sciences Faculty Publications and Presentations

Multiple Critical Points of a Functional in Product Spaces with Applications to Elliptic Systems

Document Type

Article

Publication Date

2023

Abstract

In this paper, we deal with the existence and multiplicity of component-wise nontrivial critical points (i.e., whose components are both nonzero) for an abstract C1 -functional J defined in X×X with X being a reflexive Banach space. Applying the Nehari manifold method and the minimization method along with the geometric properties of the constructed functions, we investigate the existence and multiplicity of component-wise nontrivial critical points of J. As applications, we prove the existence and multiplicity of component-wise nontrivial solutions for the second-order and fourth-order elliptic systems. Our theoretical results improve and extend the relevant results in the existing literature.

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https://rdcu.be/c3SJH

Publication Title

J Geom Anal

DOI

10.1007/s12220-022-01149-x

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