Title of article
Periodic solutions of first order functional differential equations
Author/Authors
Graef، نويسنده , , John R. and Kong، نويسنده , , Lingju، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2011
Pages
5
From page
1981
To page
1985
Abstract
We study the existence of T -periodic solutions of some first order functional differential equations. Several existence criteria are established for our problems; in particular, we obtain conditions for the existence of multiple (even infinitely many) T -periodic solutions of one of the problems. Examples are also included to illustrate our results.
Keywords
Periodic Solutions , Functional differential equations , Upper solutions , Lower solutions
Journal title
Applied Mathematics Letters
Serial Year
2011
Journal title
Applied Mathematics Letters
Record number
1528146
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