一个微生物生态模型的周期解  

Periodic Solution for a Microbial Ecologic Model

作　　者：戴志娟[1] 

机构地区：[1]扬州教育学院数学系,江苏扬州225002

出　　处：《南通工学院学报（自然科学版）》2004年第3期8-11,22,共5页

摘　　要：文章研究了一类与厌氧消化过程微生物生态模型有关的微分方程组在非自治双曲情形扰动下的周期解 ,通过利用重合度的延拓定理 。Under the non-autonomous hyperbolic perturbation,the periodic solution of a kind of differential equations with reˉspect to a microbial ecologic model has been studied.A sufficient condition of the existence of periodic solution is established by using the continuation theorem of coincidence degree theory.

关 键 词：生态模型 周期解 非线性扰动 延拓定理 拓扑度理论 

分 类 号：O175[理学—数学]