Bifurcation analysis of the Hardy-Sobolev equation
Abstract
In this paper, we prove existence of multiple non-radial solutions to the Hardy-Sobolev equation $$\begin{cases} -\Delta u-\displaystyle\frac \gamma{|x|^2}u=\displaystyle\frac{1}{|x|^s}|u|^{p_s-2}u & \text{ in } \mathbb{R}^N\setminus\{0\},\\ u\geq 0, & \end{cases}$$ where $N\geq 3$, $s\in[0,2)$, $p_s=\frac{2(N-s)}{N-2}$ and $\gamma\in (-\infty,\frac{(N-2)^2} 4)$. We extend results of E.N. Dancer, F. Gladiali, M. Grossi, Proc. Roy. Soc. Edinburgh Sect. A 147 (2017) where only the case $s=0$ is considered. Moreover, thanks to monotonicity properties of the solutions, we separate two branches of non-radial solutions.
- Publication:
-
Journal of Differential Equations
- Pub Date:
- September 2021
- DOI:
- 10.1016/j.jde.2021.06.012
- arXiv:
- arXiv:2009.04195
- Bibcode:
- 2021JDE...296..759B
- Keywords:
-
- 35A01;
- 35B06;
- 35B09;
- 35B32;
- 35J91;
- Mathematics - Analysis of PDEs