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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)


Almost periodic solutions for undamped nonhomogeneous delay-differential equations

Author: George Seifert
Journal: Proc. Amer. Math. Soc. 130 (2002), 2001-2005
MSC (2000): Primary 34K14
Published electronically: November 15, 2001
MathSciNet review: 1896034
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Abstract: We first establish a result giving conditions that certain undamped delay differential equations with almost periodic time dependence have unique almost periodic solutions. Using this result we obtain conditions that a second order scalar nonlinear delay differential equation with almost periodic forcing will have a unique almost periodic solution having saddle-type stability properties. These results use the method of averaging.

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Additional Information

George Seifert
Affiliation: Department of Mathematics, Iowa State University, Ames, Iowa 50011

PII: S 0002-9939(01)06279-7
Received by editor(s): February 14, 2000
Received by editor(s) in revised form: January 22, 2001
Published electronically: November 15, 2001
Communicated by: Carmen C. Chicone
Article copyright: © Copyright 2001 American Mathematical Society