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Stability analysis of a discrete ecological model.

Authors :
Din, Q.
Elsayed, E. M.
Source :
Computational Ecology & Software; Jun2014, Vol. 4 Issue 2, p89-103, 15p
Publication Year :
2014

Abstract

In this paper, we study the qualitative behavior of following discrete-time population model: x<subscript>n+1</subscript> = α + βx<subscript>n</subscript> + γx<subscript>n-1</subscript>e<superscript>-yn</superscript>,y<subscript>n-1</subscript> = δ+ εy<subscript>n</subscript> + ζy<subscript>n-1</subscript>e<superscript>-xn</superscript>, where parameters α,β,γ,δ,ε,ζ and initial conditions x<subscript>0</subscript>, x<subscript>-1</subscript>, y<subscript>0</subscript>,y<subscript>-1</subscript> are positive real numbers. More precisely, we investigate the existence and uniqueness of positive equilibrium point,boundedness character, persistence, local asymptotic stability, global behavior and rate of convergence of unique positive equilibrium point of this model. Some numerical examples are given to verify our theoretical results. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
2220721X
Volume :
4
Issue :
2
Database :
Supplemental Index
Journal :
Computational Ecology & Software
Publication Type :
Academic Journal
Accession number :
95679778