We study the global structure of the set of radial solutions of a nonlinear Dirichlet eigenvalue problem involving the p-Laplacian with p > 2, in the unit ball of R-N, N >= 1. We show that all non-trivial radial solutions lie on smooth curves of respectively positive and negative solutions, bifurcating from the first eigenvalue of a weighted p-linear problem. Our approach involves a local bifurcation result of Crandall-Rabinowitz type, and global continuation arguments relying on monotonicity properties of the equation. An important part of the analysis is dedicated to the delicate issue of differentiability of the inverse p-Laplacian, and holds for all p > 1.
|Number of pages||17|
|Journal||Electronic Journal of Differential Equations|
|Publication status||Published - 2012|
- Dirichlet problem
- radial p-Laplacian
- solution curve
- EIGENVALUE PROBLEMS