刊名:Journal of Mathematical Analysis and Applications
出版年:2017
出版时间:1 March 2017
年:2017
卷:447
期:1
页码:564-578
全文大小:333 K
文摘
In this paper we consider a system with nonlocal dispersal. Applying Ahmad and Lazers definitions of lower and upper averages of a function and using the sub- and supersolution methods for PDEs we give sufficient conditions for permanence in such models. Moreover, we allow the intrinsic growth rates to be negative.