Ground state solutions for weighted fourth-order Kirchhoff problem via Nehari method (2305.04255v1)

Abstract: In this article, we study the following non local problem $$g\big(\int_{B}w(x) |\Delta u|^{2}\big)\Delta(w(x)\Delta u) =|u|^{q-2}u +\ f(x,u) \quad\mbox{ in }\quad B, \quad u=\frac{\partial u}{\partial n}=0 \quad\mbox{ on } \quad\partial B,$$ where $B$ is the unit ball in $\mathbb{R}^{4}$ and $ w(x)$ is a singular weight of logarithm type. The non-linearity is a combination of a reaction source $f(x,u)$ which is critical in view of exponential inequality of Adams' type and a polynomial function. The Kirchhoff function $g$ is positive and continuous. By using the Nehari manifold method , the quantitative deformation lemma and degree theory results, we establish the existence of a ground state solution.