Results 111 to 120 of about 7,276 (215)

Homoclinic orbits for a class of Hamiltonian systems

open access: yesDifferential and Integral Equations, 1992
The Hamiltonian system under consideration is governed by equations of the form \[ \ddot q+V_ q(t,q)=\ddot q-L(t)q+W_ q(t,q)=0, \] where \(L(t)\) is a positive definite matrix and further technical conditions, among other things, ensure that the origin is a local maximum of \(V\) for all \(t\).
Omana, W., Willem, M.
openaire   +3 more sources

Nonexistence of Homoclinic Solutions for a Class of Discrete Hamiltonian Systems

open access: yesAbstract and Applied Analysis, 2013
We give several sufficient conditions under which the first-order nonlinear discrete Hamiltonian system Δx(n)=α(n)x(n+1)+β(n)|y(n)|μ-2y(n),Δy(n)=-γ(n)|x(n+1)|ν-2x(n+1)-α(n)y(n) has no solution (x(n),y(n)) satisfying condition ...
Xiaoping Wang
doaj   +1 more source

Homoclinic solutions in periodic partial difference equations

open access: yesAdvances in Nonlinear Analysis
By using critical point theory in combination with periodic approximations, we obtain novel sufficient conditions for the existence of nontrivial homoclinic solutions for a class of periodic partial difference equations with sign-changing mixed ...
Mei Peng, Zhou Zhan, Yu Jianshe
doaj   +1 more source

Measure expansive homoclinic classes for generic diffeomorphisms

open access: yesApplied Mathematical Sciences, 2015
Let f : M ! M be a dieomorphism on a closed smooth n(n 2)dimensional Riemannian manifold M. For C 1 generic f; if a homoclinic class Hf (p) is measure expansive then it is hyperbolic.
openaire   +1 more source

Homoclinic orbits for a class of symmetric Hamiltonian systems

open access: yesElectronic Journal of Differential Equations, 1994
of Hamiltonian systems that are symmetric with respect to independent variable (time). For the scalar case we prove existence and uniqueness of a positive homoclinic solution. For the system case we prove existence of symmetric homoclinic orbits.
Philip Korman, Alan C. Lazer
doaj  

On homoclinic orbits for a class of damped vibration systems [PDF]

open access: gold, 2012
Juntao Sun   +2 more
openalex   +1 more source

Homoclinic Solutions for a Class of Second Order Nonautonomous Singular Hamiltonian Systems

open access: yesAbstract and Applied Analysis, 2014
We are concerned with the existence of homoclinic solutions for the following second order nonautonomous singular Hamiltonian systems u¨+atWuu=0, (HS) where -∞
Ziheng Zhang   +2 more
doaj   +1 more source

Partial hyperbolicity far from homoclinic bifurcations

open access: yes, 2008
We prove that any diffeomorphism of a compact manifold can be C^1-approximated by a diffeomorphism which exhibits a homoclinic bifurcation (a homoclinic tangency or a heterodimensional cycle) or by a diffeomorphism which is partially hyperbolic (its ...
Crovisier, Sylvain
core   +1 more source

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