一类浮游生物植化相克时滞差分系统的正周期解的存在性

Existence of Positive Periodic Solution of a Delay Difference System of Planktom Allelopathy

本文利用Mawhin的重合度理论研究了一类周期浮游生物植化相克时滞差分系统正周期解的存在性,获得了保证该差分系统存在周期解的新的充分条件。

In this paper,by using the continuation theorem of Mawhin's coincidence degree,obtain a new sufficient condition for the existence of positive periodic solution of a delay difference system of plankton allelopathy.