title: Permanence for two-species Lotka-Volterra cooperative systems with delays.
abstract: In this paper, a two-species Lotka-Volterra cooperative delay system is considered, and the relationships between the delays and the permanence are obtained. Some sufficient conditions for the permanence under the assumption of smallness of the delays are obtained. Two examples are given to illustrate the theorems.
authors.affiliation: Department of Mathematics, Wenzhou University Wenzhou, China. bromn006@gmail.com
authors.forename: Guichen
authors.initials: G
authors.lastname: Lu
authors.forename: Zhengyi
authors.initials: Z
authors.lastname: Lu
mesh_terms: D003198:Computer Simulation; D008433:Mathematics; D015233:Models, Statistical; D008962:Models, Theoretical; D017711:Nonlinear Dynamics; D013598:Systems Theory; D013997:Time Factors