Results 21 to 30 of about 864 (203)

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   +2 more sources

Existence of Homoclinic Solutions for a Class of Nonlinear Difference Equations [PDF]

open access: yesAdvances in Difference Equations, 2010
By using the critical point theory, we establish some existence criteria to guarantee that the nonlinear difference equation has at least one homoclinic solution, where , and is non periodic in .
Chen Peng, Tang XH
doaj   +4 more sources

New homoclinic solutions for a class of second-order Hamiltonian systems with a mixed condition

open access: yesBoundary Value Problems, 2018
In this paper, we introduce a new mixed condition to obtain a new compact embedding theorem. Under this theorem, we study the existence and multiplicity of nontrivial homoclinic solutions for a class of second-order Hamiltonian systems with variable ...
Xuefeng Li, Jin Jia
doaj   +2 more sources

Multiplicity of Homoclinic Solutions for a Class of Nonperiodic Fourth-Order Differential Equations with General Perturbation [PDF]

open access: yesAbstract and Applied Analysis, 2014
In this paper, we investigate a class of nonperiodic fourth-order differential equations with general perturbation. By using the mountain pass theorem and the Ekeland variational principle, we obtain that such equations possess two homoclinic solutions ...
Liu Yang
doaj   +2 more sources

Nonexistence of Homoclinic Solutions for a Class of Discrete Hamiltonian Systems [PDF]

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   +4 more sources

Existence and Uniqueness of Homoclinic Solution for a Class of Nonlinear Second-Order Differential Equations [PDF]

open access: yesJournal of Applied Mathematics, 2012
The authors study the existence and uniqueness of a set with 2kT-periodic solutions for a class of second-order differential equations by using Mawhin's continuation theorem and some analysis methods, and then a unique homoclinic orbit is obtained as a ...
Lijuan Chen, Shiping Lu
doaj   +2 more sources

Homoclinic Solutions of a Class of Nonperiodic Discrete Nonlinear Systems in Infinite Higher Dimensional Lattices

open access: yesAbstract and Applied Analysis, 2014
By using critical point theory, we obtain a new sufficient condition on the existence of homoclinic solutions of a class of nonperiodic discrete nonlinear systems in infinite lattices. The classical Ambrosetti-Rabinowitz superlinear condition is improved
Genghong Lin, Zhan Zhou
doaj   +2 more sources

Action functional as an early warning indicator in the space of probability measures via Schrödinger bridge. [PDF]

open access: yesQuant Biol
Abstract Critical transitions and tipping phenomena between two meta‐stable states in stochastic dynamical systems are a scientific issue. In this work, we expand the methodology of identifying the most probable transition pathway between two meta‐stable states with Onsager–Machlup action functional, to investigate the evolutionary transition dynamics ...
Zhang P, Gao T, Guo J, Duan J.
europepmc   +2 more sources

Positive Homoclinic Solutions for a Class of Second Order Differential Equations

open access: yesJournal of Mathematical Analysis and Applications, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Grossinho, Maria do Rosário   +2 more
core   +4 more sources

Existence of homoclinic orbits for a class of nonlinear functional difference equations

open access: yesElectronic Journal of Differential Equations, 2016
By using critical point theory, we prove the existence of a nontrivial homoclinic orbit for a class of nonlinear functional difference equations. Our conditions on the nonlinear term do not need to satisfy the well-known global Ambrosetti-Rabinowitz ...
Xia Liu, Tao Zhou, Haiping Shi
doaj   +1 more source

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