On the Uniqueness of Positive Solutions of a Quasilinear Equation Containing a Weighted p-Laplacian, the Superlinear Case

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We consider the problem of uniqueness of positive solutions to boundary value problems containing the equation: -Δ_p u =K(|x|)f(u), p>1. f is positive, is locally Lipschitz and satisfies some superlinear growth condition after u_0, a zero of f before which it is non positive and not identically 0. We show that the Sturmnian theory arguments used by Coffman and Kwong are valid for the equation containing the p-Laplacian operator, even though they were thought to be unextendable beyond the semilinear equation. We obtain a monotone separation result which finally yields the desired uniqueness results.
23 pages, no figures

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Analysis of PDEs, Classical Analysis and ODEs, 35J25, 35B05

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http://salesiana.dossiersoluciones.com/handle/123456789/115325

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0608189
 http://arxiv.org/abs/math/0608189

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arXiv