Existence of infinitely many periodic subharmonic solutions for nonlinear non-autonomous neutral differential equations

Existence of infinitely many periodic subharmonic solutions for nonlinear non-autonomous neutral differential equations

In this article, we study the existence of an infinite number of subharmonic periodic solutions to a class of second-order neutral nonlinear functional differential equations. Subdifferentiability of lower semicontinuous convex functions $varphi(x(t),x(t-au))$ and the corresponding conjugate fun...

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Bibliographic Details
Main Authors: Xiao-Bao Shu, Yongzeng Lai, Fei Xu
Format: Article
Language:English
Published: Texas State University 2013-06-01
Series:Electronic Journal of Differential Equations
Subjects:
Subharmonic periodic solution
variational structure
operator equation
critical point
subdifferential
neutral functional differential equation
Z2-group
index theory
Online Access:http://ejde.math.txstate.edu/Volumes/2013/150/abstr.html

Internet

http://ejde.math.txstate.edu/Volumes/2013/150/abstr.html

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