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Homoclinic orbits for a class of Hamiltonian systems

Published online by Cambridge University Press:  14 November 2011

Paul H. Rabinowitz
Affiliation:
Mathematics Department and Center for the Mathematical Sciences, University of Wisconsin-Madison, Madison, Wisconsin 53705, U.S.A.

Synopsis

Consider the second order Hamiltonian system:

where q ∊ ℝn and VC1 (ℝ ×ℝn ℝ) is T periodic in t. Suppose Vq (t, 0) = 0, 0 is a local maximum for V(t,.) and V(t, x) | x| → ∞ Under these and some additional technical assumptions we prove that (HS) has a homoclinic orbit q emanating from 0. The orbit q is obtained as the limit as k → ∞ of 2kT periodic solutions (i.e. subharmonics) qk of (HS). The subharmonics qk are obtained in turn via the Mountain Pass Theorem.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1990

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