J4 ›› 2012, Vol. 50 ›› Issue (03): 501-.

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Existence of Periodic Solutions of 2nOrder Delay Differential Equation[JP]

CHENG Jingsong1,2, LIU Shuyuan1,3, LI Xiuwen1   

  1. 1. College of Mathematics, Jilin University, Changchun 130012, China|2. Department of Basic Course, Jilin Vocational &|Technical Institute |of Communication, Changchun 130012, China|3. Department of Basic Course, |Jilin Institute of Business, Changchun 130062, China
  • Received:2012-04-19 Online:2012-05-26 Published:2012-05-28
  • Contact: CHENG Jingsong E-mail:cjs6308@sina.com

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Abstract:

We studied problems about 2n-order delay differential equations with periodic boundary value  using the upper and lower solution method, and established some suffcient conditions for the existence of the solutions of  2n(n≥1)order periodic boundary value problems.

Key words:  2norder boundary value problem, priori boundary, periodic solutions

CLC Number: 

  • O175
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