J4 ›› 2012, Vol. 50 ›› Issue (4): 607-615.

• 数学 • 上一篇    下一篇

一类三阶变时滞泛函微分方程周期解的存在唯一性一类三阶变时滞泛函微分方程周期解的存在唯一性

沈钦锐, 周宗福   

  1. 安徽大学 数学科学学院, 合肥 230039
  • 收稿日期:2011-09-09 出版日期:2012-07-01 发布日期:2012-09-07
  • 通讯作者: 周宗福 E-mail:zhouzf12@126.com

Existence and Uniqueness of Periodic Solution Problems for a Third Order Functional Differental Equation with Delays

SHEN Qin-rui, ZHOU Zong-fu   

  1. School of Mathematics Science, University of Anhui, Hefei 230039, China
  • Received:2011-09-09 Online:2012-07-01 Published:2012-09-07
  • Contact: ZHOU Zong-fu E-mail:zhouzf12@126.com

摘要:

利用重合度理论, 研究一类具有偏差变元的三阶变时滞微分方程x(t)+∑2i=1[aix(i)(t)+bix(i)(t-τi(t))\]+cx(t)+g1(x(t))+g2(x(t-τ3(t)))=e(t)的T周期解问题, 得到了上述方程T周期解存在唯一性的若干结果, 所得结果与方程的3个时滞有关.

关键词: 三阶时滞泛函微分方程, 周期解, 重合度

Abstract:

A type of third order functional differential equation with change delaysx(t)+∑2i=1[aix(i)(t)+bix(i)(t-τi(t))\]+cx(t)+g1(x(t))+g2(x(t-τ3(t)))=e(t)was considered by means of the theory of coincide degree. The sufficient condition for the existence of unique Tperiodic solution was obtained. The conclusion is relevant to three delays.

Key words: three order functional differential equation with delays, periodic solution, coincidence degree

中图分类号: 

  • O175.6