Existence and Uniqueness of Positive Solitons for a Second-Order Difference Equation

A discrete logistic steady-state equation with both positive and negative birth rate of population will be considered. By using sub- and upper-solution method, the existence of bounded positive solutions and the existence and uniqueness of positive solitons will be established. To this end, the Diri...

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Main Authors: Xinfu Li, Guang Zhang, Ying Wang
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Discrete Dynamics in Nature and Society
Online Access:http://dx.doi.org/10.1155/2014/503496
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author Xinfu Li
Guang Zhang
Ying Wang
author_facet Xinfu Li
Guang Zhang
Ying Wang
author_sort Xinfu Li
collection DOAJ
description A discrete logistic steady-state equation with both positive and negative birth rate of population will be considered. By using sub- and upper-solution method, the existence of bounded positive solutions and the existence and uniqueness of positive solitons will be established. To this end, the Dirichlet eigenvalue problem with positive and negative coefficients is considered, and a general sub- and upper-solution theorem is also obtained.
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institution Kabale University
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publishDate 2014-01-01
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series Discrete Dynamics in Nature and Society
spelling doaj-art-4fb290d71dba4837b193a6be248402262025-02-03T01:32:09ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2014-01-01201410.1155/2014/503496503496Existence and Uniqueness of Positive Solitons for a Second-Order Difference EquationXinfu Li0Guang Zhang1Ying Wang2School of Science, Tianjin University of Commerce, Tianjin 300134, ChinaSchool of Science, Tianjin University of Commerce, Tianjin 300134, ChinaSchool of Science, Tianjin University of Commerce, Tianjin 300134, ChinaA discrete logistic steady-state equation with both positive and negative birth rate of population will be considered. By using sub- and upper-solution method, the existence of bounded positive solutions and the existence and uniqueness of positive solitons will be established. To this end, the Dirichlet eigenvalue problem with positive and negative coefficients is considered, and a general sub- and upper-solution theorem is also obtained.http://dx.doi.org/10.1155/2014/503496
spellingShingle Xinfu Li
Guang Zhang
Ying Wang
Existence and Uniqueness of Positive Solitons for a Second-Order Difference Equation
Discrete Dynamics in Nature and Society
title Existence and Uniqueness of Positive Solitons for a Second-Order Difference Equation
title_full Existence and Uniqueness of Positive Solitons for a Second-Order Difference Equation
title_fullStr Existence and Uniqueness of Positive Solitons for a Second-Order Difference Equation
title_full_unstemmed Existence and Uniqueness of Positive Solitons for a Second-Order Difference Equation
title_short Existence and Uniqueness of Positive Solitons for a Second-Order Difference Equation
title_sort existence and uniqueness of positive solitons for a second order difference equation
url http://dx.doi.org/10.1155/2014/503496
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