English

Positive solutions of critical Hardy-H\'{e}non equations with logarithmic term

Analysis of PDEs 2025-04-29 v1

Abstract

We consider the existence, non-existence and multiplicity of positive solutions to the following critical Hardy-H\'{e}non equation with logarithmic term \begin{equation*}\label{eq11}\left\{ \begin{array}{ll} -\Delta u =|x|^{\alpha}|u|^{2^*_{\alpha}-2}\cdot u+\mu u\log u^2+\lambda u, &x\in \Omega,\\ u=0, &x\in \partial \Omega,\\ \end{array} \right.\end{equation*} where Ω=B \Omega=B for α0\alpha\geq 0, Ω=B{0} \Omega=B\setminus\{0\} for α(2,0)\alpha\in(-2,0), BRNB\subset\mathbb{R}^N is an unit ball, λ,μR\lambda, \mu \in \mathbb{R}, N3,α>2N\geq 3, \alpha>-2, 2α:=2(N+α)N22^*_{\alpha}:=\frac{2(N+\alpha)}{N-2} is the critical exponent for the embedding H0,r1(Ω)Lp(Ω;xα)H_{0,r}^{1}( \Omega)\hookrightarrow L^p( \Omega;|x|^\alpha), and which can be seen as a Br\'{e}zis-Nirenberg problem. When N4N \geq 4 and μ>0\mu>0, we will show that the above problem has a positive Mountain pass solution, which is also a ground state solution. At the same time, when μ<0\mu<0, under some assumptions on the NN, μ\mu, λ\lambda and α\alpha, we will show that the above problem has at least a positive least energy solution and at least a positive Mountain pass solution, respectively. What's more, when certain inequality related to N3N \geq 3, μ<0\mu<0 and α(2,0]\alpha\in(-2,0] holds, we will demonstrate the non-existence of positive solutions to the above-mentioned problem. The presence of logarithmic term brings some new and interesting phenomena to this problem.

Keywords

Cite

@article{arxiv.2504.19817,
  title  = {Positive solutions of critical Hardy-H\'{e}non equations with logarithmic term},
  author = {Qihan He and Wenxuan Liu and Yiqing Pan},
  journal= {arXiv preprint arXiv:2504.19817},
  year   = {2025}
}