| Affiliation: | (1) College of Mathematics, Wuhan University, Wuhan, 430072, China;(2) College of Mathematics, Hunan University, Changsha, 410082, China |
| Abstract: | By using the continuation theorem of coincidence degree theory, the existence of a positive periodic solution for a nonautonomous diffusive food chain system of three species.is established, where ri(t), aii(t) (i = 1.2,3,4), Di(t) (i = 1,2), a12(t), a21(t), a23(t) and a32(t) are all positive periodic continuous functions with period w > 0, Ti(i = 1,2) are positive constants. |
