Preprint 37/2009

Subharmonics and homoclinics for a class of Hamiltonian-like equations

Percy Makita

Contact the author: Please use for correspondence this email.
Submission date: 20. Jul. 2009 (revised version: September 2009)
Pages: 23
MSC-Numbers: 34C25, 34C37, 37K60
Keywords and phrases: Advanced-delayed differential equations, critical point theory, periodic and homoclinic solutions
Download full preprint: PDF (239 kB)

We study the existence of periodic and homoclinic solutions for a class of non-autonomous second order advanced-delayed differential equations of the type

We prove, under some growth conditions on the non-linearities, the existence of non-constant periodic solutions with period any given positive integer. Using very simple arguments, the existence of a non-trivial homoclinic solution is also established. This homoclinic is obtained as the limit of subharmonics. An application to the existence of periodic and homoclinic travelling waves in an infinite lattice of partciles with N-nearest-neighbour interaction and on-site potential is given.

21.02.2013, 01:42