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Periodic Solutions for a Class of -th Order Functional Differential Equations
Author(s) -
Bing Song,
Lijun Pan,
Jinde Cao
Publication year - 2011
Publication title -
international journal of differential equations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.324
H-Index - 20
eISSN - 1687-9651
pISSN - 1687-9643
DOI - 10.1155/2011/916279
Subject(s) - mathematics , coincidence , degree (music) , class (philosophy) , differential equation , order (exchange) , mathematical analysis , differential (mechanical device) , physics , thermodynamics , computer science , medicine , alternative medicine , finance , pathology , artificial intelligence , acoustics , economics
We study the existence of periodic solutions for n-th order functional differentialequations ()∑()=−1=0[()()]+((−()))+(). Some new results on the existence of periodic solutions of the equations are obtained. Our approach is based on the coincidence degree theory of Mawhin

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