On a discrete model of population dynamics with impulsive harvesting or recruitment

被引：7

作者：

Braverman, Elena ^{[1
]}

机构：

[1] Univ Calgary, Dept Math & Stat, Calgary, AB T2N 1N4, Canada

来源：

NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS | 2005年 / 63卷 / 5-7期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Difference equations; Population dynamics; Harvesting; Recruitment;

D O I：

10.1016/j.na.2004.12.015

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

We consider the difference equation of population dynamics x(n+1) = r(n)x(n)(2)/(x(n)(2) + A(n)) which incorporates impulsive perturbations x(pk)(+) = b(k)x(pk) - d(k), k = 1, 2,..., of a harvesting or a recruitment type. The existence of positive solutions, positive periodic solutions and asymptotics are studied. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：E751 / E759

页数：9