DOI: 10.68381/jca22020 ISSN: 0944-6532

On a Nonlocal Multivalued Problem in an Orlicz-Sobolev Space via Krasnoselskii's Genus

Giovany M. Figueiredo, Jefferson A. Santos

This paper is concerned with the multiplicity of nontrivial solutions in an Orlicz-Sobolev space for a nonlocal problem involving N-functions and theory of locally Lispchitz continuous functionals. More precisely, in this paper, we study a result of multiplicity to the following multivalued elliptic problem:

\left \{ \begin{array}{l} -M\left(\displaystyle\int_\Omega \Phi(\mid\nabla u\mid)dx\right) div\big(\phi(\mid\nabla u\mid)\nabla u\big) -\phi(|u|)u\in \partial F(u) \ \text{in}\ \Omega,\\[6mm] u\in W_0^1L_\Phi(\Omega), \end{array} \right. { − M ( ∫ Ω Φ ( ∣ ∇ u ∣ ) d x ) d i v ( ϕ ( ∣ ∇ u ∣ ) ∇ u ) − ϕ ( ∣ u ∣ ) u ∈ ∂ F ( u )  in  Ω , u ∈ W 0 1 L Φ ( Ω ) ,
where
\Omega\subset\mathbb{R}^{N} Ω ⊂ R N
is a bounded smooth domain,
N\geq 2 N ≥ 2
,
M M
is continuous function,
\Phi Φ
is an N-function with
\Phi(t)=\displaystyle\int^{|t|}_{0}\phi(s)s \ ds Φ ( t ) = ∫ 0 ∣ t ∣ ϕ ( s ) s   d s
and
\partial F(t) ∂ F ( t )
is a generalized gradient of
F(t) F ( t )
. We use genus theory to obtain the main result