English

Sign-changing solution for logarithmic elliptic equations with critical exponent

Analysis of PDEs 2023-08-21 v1

Abstract

In this paper, we consider the logarithmic elliptic equations with critical exponent \begin{equation} \begin{cases} -\Delta u=\lambda u+ |u|^{2^*-2}u+\theta u\log u^2, \\ u \in H_0^1(\Omega), \quad \Omega \subset \R^N. \end{cases} \end{equation} Here, the parameters N6N\geq 6, λR\lambda\in \R, θ>0\theta>0 and 2=2NN2 2^*=\frac{2N}{N-2} is the Sobolev critical exponent. We prove the existence of sign-changing solution with exactly two nodal domain for an arbitrary smooth bounded domain ΩRN\Omega\subset \mathbb{R}^{N}. When Ω=BR(0)\Omega=B_R(0) is a ball, we also construct infinitely many radial sign-changing solutions with alternating signs and prescribed nodal characteristic.

Keywords

Cite

@article{arxiv.2308.08719,
  title  = {Sign-changing solution for logarithmic elliptic equations with critical exponent},
  author = {Tianhao Liu and Wenming Zou},
  journal= {arXiv preprint arXiv:2308.08719},
  year   = {2023}
}
R2 v1 2026-06-28T11:57:34.289Z