摘要
研究一类具有多个偏差变元的n阶中立型泛函微分方程周期解的存在唯一性.利用重合度理论和不等式分析技巧,获得了该方程周期解存在唯一的充分条件,推广和完善了有关文献的结果.
The existence and uniqueness of periodic solutions for a class of n-th order neutral functional differential equations are studied.By employing coincidence degree theory and inequality techniques,some sufficient conditions of the existence and uniqueness of periodic solutions are obtained.These results extend and improve previously known results.
出处
《天津师范大学学报（自然科学版）》
CAS
2013年第3期22-27,共6页
Journal of Tianjin Normal University：Natural Science Edition
关键词
中立型泛函微分方程
偏差变元
周期解
存在唯一性
重合度
neutral functional differential equations
deviating argument
periodic solutions
existence and uniqueness
coincidence degree
