Positive Solutions of a General Discrete Dirichlet Boundary Value Problem

Xinfu Li and Guang Zhang

Discrete Dynamics in Nature and Society, 2016, vol. 2016, 1-7

Abstract:

A steady state equation of the discrete heat diffusion can be obtained by the heat diffusion of particles or the difference method of the elliptic equations. In this paper, the nonexistence, existence, and uniqueness of positive solutions for a general discrete Dirichlet boundary value problem are considered by using the maximum principle, eigenvalue method, sub- and supersolution technique, and monotone method. All obtained results are new and valid on any -dimension finite lattice point domain. To the best of our knowledge, they are better than the results of the corresponding partial differential equations. In particular, the methods of proof are different.

Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnddns:7456937

DOI: 10.1155/2016/7456937

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