Existence and comparison results for difference φ-Laplacian boundary value problems with lower and upper solutions in reverse order

被引:43
|
作者
Cabada, A [1 ]
Otero-Espinar, V [1 ]
机构
[1] Univ Santiago de Compostela, Fac Matemat, Dept Anal Matemat, Santiago De Compostela 15782, Spain
关键词
Laplacian problems; lower and upper solutions; monotone iterative technique; comparison principles;
D O I
10.1006/jmaa.2001.7783
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
This paper is devoted to the study of the existence and comparison results for nonlinear difference phi-Laplacian problems with mixed, Dirichlet, Neumann, and periodic boundary value conditions. We deduce existence of extremal solutions of periodic and Neumann boundary value problems lying between a pair of lower and upper solutions given in reverse order. We prove the optimality of some assumptions in phi. (C) 2002 Elsevier Science (USA).
引用
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页码:501 / 521
页数:21
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