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Positive solutions of a degenerate elliptic equation with logistic reaction
Authors:Shingo Takeuchi
Affiliation:Department of Mathematics, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
Abstract:

The degenerate elliptic equation $lambda Delta_p u +u^{q-1}(1-u^r)=0$ with zero Dirichlet boundary condition, where $lambda$ is a positive parameter, $2<p<q$ and $r>0$, is studied in three aspects: existence of maximal solution, $lambda$-dependence of maximal solution and multiplicity of solutions.

Keywords:$p$-Laplace operator   degenerate elliptic equation   flat hat   flat core   multiple solutions
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