摘要
通过研究一类带周期边界条件的二阶线性算子的性质,运用Schauder不动点定理获得了二阶奇异微分系统正周期解的存在性,所得结果推广并改进了已有工作的相关结果.
Some qualitative properties of the second order linear operator with periodic conditions have been studied in this paper by means of the Schauder s fixed-point theorem.And the existence of positive periodic solutions of the singular second-order differential system has been obtained.The conclusions in this paper perfect the existed results.
作者
苗亮英
何志乾
MIAO Liang-ying;HE Zhi-qian(College of Mathematics and statistics,Qinghai Nationalities University,Xining 810007,China;Teaching and Research Department of Basic Courses,Qinghai University,Xining 810016,China)
出处
《西南师范大学学报（自然科学版）》
CAS
北大核心
2018年第2期26-31,共6页
Journal of Southwest China Normal University(Natural Science Edition)
基金
青海省自然科学基金项目(2017-ZJ-908)
关键词
正周期解
系统
存在性
positive periodic solutions
systems
existence
