Ryuji Kajikiya, Department of Mathematics, Faculty of Science and Engineering, Saga University, 1 Honjo-machi, Saga, 840-8502, Japan, e-mail: kajikiya@ms.saga-u.ac.jp
Abstract: We study the existence of positive solutions for the $p$-Laplace Emden-Fowler equation. Let $H$ and $G$ be closed subgroups of the orthogonal group $O(N)$ such that $H \varsubsetneq G \subset O(N)$. We denote the orbit of $G$ through $x\in\mathbb{R}^N$ by $G(x)$, i.e., $G(x):=\{gx\colon g\in G \}$. We prove that if $H(x)\varsubsetneq G(x)$ for all $x\in\overline{\Omega}$ and the first eigenvalue of the $p$-Laplacian is large enough, then no $H$ invariant least energy solution is $G$ invariant. Here an $H$ invariant least energy solution means a solution which achieves the minimum of the Rayleigh quotient among all $H$ invariant functions. Therefore there exists an $H$ invariant $G$ non-invariant positive solution.
Keywords: Emden-Fowler equation; group invariant solution; least energy solution; positive solution; variational method
Classification (MSC 2010): 35J20, 35J25
Full text available as PDF.
Access to the full text of journal articles on this site is restricted to the subscribers of Myris Trade. To activate your access, please contact Myris Trade at myris@myris.cz.
