一类具有时滞和收获率的脉冲广义Schoeners竞争系统的多个正概周期解  

Four Positive Almost Periodic Solutions of an Impulsive Generalized Schoeners Systems with Delays and Harvesting Terms

作　　者：黄怀芳 姚晓洁 黎勇 

机构地区：[1]广西来宾市来宾高级中学,广西来宾546199 [2]广西科技师范学院数学与计算机科学学院,广西来宾546199 [3]广西百色学院数学与统计学院,广西百色533000

出　　处：《数学的实践与认识》2018年第5期256-264,共9页Mathematics in Practice and Theory

基　　金：国家自然科学基金项目(11661001);广西高校科学技术研究项目(YB2014468);广西高校非线性动力系统仿真与控制重点实验室培育基地项目

摘　　要：研究了一类具有时滞和收获率的脉冲广义Schoeners竞争系统的正概周期解．通过利用重合度理论延拓定理和不等式分析技巧，获得了该系统至少存在4个正概周期解的充分条件，推广和改进了早期文献的相关结果．This paper investigates the existence of positive Mmost periodic solutions for an impulsive generalized Schoeners systems with delays and harvesting terms. By using a continuation theorem based on coincidence degree theory and inequality analysis technique, some sufficient conditions for the existence of at least four positive almost periodic solutions of the system are obtained, which generalize and improve the related results of early literature.

关 键 词：收获率 脉冲广义Schoeners竞争系统 多个正概周期解 重合度 

分 类 号：O175[理学—数学]