Opuscula Math. 35, no. 6 (2015), 889-905
http://dx.doi.org/10.7494/OpMath.2015.35.6.889

 
Opuscula Mathematica

Existence and multiplicity of solutions for a nonhomogeneous Neumann boundary problem

Liliana Klimczak

Abstract. We consider a nonlinear Neumann elliptic equation driven by a \(p\)-Laplacian-type operator which is not homogeneous in general. For such an equation the energy functional does not need to be coercive, and we use suitable variational methods to show that the problem has at least two distinct, nontrivial smooth solutions. Our formulation incorporates strongly resonant equations.

Keywords: Palais-Smale condition, noncoercive functional, second deformation theorem.

Mathematics Subject Classification: 35J20, 35J60.

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Cite this article as:
Liliana Klimczak, Existence and multiplicity of solutions for a nonhomogeneous Neumann boundary problem, Opuscula Math. 35, no. 6 (2015), 889-905, http://dx.doi.org/10.7494/OpMath.2015.35.6.889

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