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The Existence of Multiple Periodic Solutions of Nonautonomous Delay Differential Equations
Author(s) -
Huafeng Xiao,
Bo Zheng
Publication year - 2011
Publication title -
journal of applied mathematics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.307
H-Index - 43
eISSN - 1687-0042
pISSN - 1110-757X
DOI - 10.1155/2011/829107
Subject(s) - mathematics , multiplicity (mathematics) , infinity , mathematical analysis , delay differential equation , differential equation , zero (linguistics) , stability theory , comparison theorem , nonlinear system , physics , philosophy , linguistics , quantum mechanics
We study the multiplicity of periodic solutions of nonautonomous delay differential equations which are asymptotically linear both at zero and atinfinity. By making use of a theorem of Benci, some sufficient conditions are obtained to guarantee the existence of multiple periodic solutions

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