Open AccessNONTRIVIAL PERIODIC SOLUTIONS FOR SECOND-ORDER DIFFERENTIAL DELAY EQUATIONS
Author(s) -
Qi Wang,
Wenjie Liu,
Mei Wang
Publication year - 2017
Publication title -
journal of applied analysis and computation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.55
H-Index - 21
eISSN - 2158-5644
pISSN - 2156-907X
DOI - 10.11948/2017058
Subject(s) - mathematics , delay differential equation , mathematical analysis , order (exchange) , differential equation , fixed point index , economics , finance , boundary value problem
In this paper, we consider the existence of periodic solutions for second-order differential delay equations. Some existence results are obtained using Malsov-type index and Morse theory, which extends and complements some existing results.
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