A note on the implicit function theorem for quasi-linear eigenvalue problems

摘要

We consider the quasi-linear eigenvalue problem -Δ _pu= λg(u) subject to Dirichlet boundary conditions on a bounded open set Ω, where g is a locally Lipschitz continuous function. Imposing no further conditions on Ω or g, we show that for λ near zero the problem has a bounded solution which is unique in the class of all small solutions. Moreover, this curve of solutions parameterized by λ depends continuously on the parameter.