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Perturbed Schrödinger lattice systems with superlinear terms: Multiplicity of homoclinic solutions

Calculus of Variations and Partial Differential Equations, 2021
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Guanwei Chen, Shiwang Ma
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Fast homoclinic solutions for some second order non-autonomous systems [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 2011
This paper is concerned with the existence of homoclinic solutions for the following second order non-autonomous system(FHS)q¨+cq˙+Uq(t,q)=0, where q∈Rn, c⩾0 is a constant and U(t,q)∈C1(R×Rn,R).
Ziheng Zhang
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Multiplicity of Homoclinic Solutions for Second Order Hamiltonian Systems with Local Conditions at the Origin

Acta Mathematica Sinica, English Series, 2022
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Liu, Peng, Guo, Fei
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Multiple Homoclinic Solutions for Second‐Order Perturbed Hamiltonian Systems

Studies in Applied Mathematics, 2013
In this paper, we study the second‐order perturbed Hamiltonian systems urn:x-wiley:00222526:sapm12023:equation:sapm12023-math-0001where is a parameter, is positive definite for all but unnecessarily uniformly positive definite for , and W is either asymptotically quadratic or superquadratic in x as .
Ye, Yiwei, Tang, Chun-Lei
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Existence and multiplicity of homoclinic solutions for a class of damped vibration problems

Nonlinear Analysis: Theory, Methods & Applications, 2011
The following damped vibration problems are considered: \[ -\ddot{u}(t)-B\dot{u}(t)+A(t)u(t)=\nabla F(t,u(t))\text{ a.e. }t\in\mathbb{R}, \] \[ u(t)\rightarrow 0\text{ and }\dot{u}(t)\rightarrow 0\text{ as }|t|\rightarrow\infty, \] where \(A\in C(\mathbb{R},\mathbb{R}^{N^2})\) is an \(N\times N\) symmetric matrix-valued function, \(B\) is an ...
Wu, Xian, Zhang, Wei
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Multiplicity of homoclinic solutions for singular second-order conservative systems

Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 1996
We consider a class of second-order systems, withq(t) ∊ℝn, for which the potential energyV: ℝn\S→ℝ admits a (possibly unbounded) singular setS⊂ℝnand has a unique absolute maximum at 0 ∈ℝn. Under some conditions on S andV, we prove the existence of several solutions homoclinic to 0.
Bertotti, Maria Letizia, Jeanjean, Louis
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MULTIPLICITY OF HOMOCLINIC SOLUTIONS FOR FRACTIONAL DISCRETE LAPLACIAN EQUATIONS

Rocky Mountain Journal of Mathematics
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Existence and multiplicity of homoclinic solutions for second‐order nonlinear difference equations with Jacobi operators

Mathematical Methods in the Applied Sciences, 2016
In this paper, a nonperiodic discrete nonlinear equation with Jacobi operators is considered. By using the critical point theory, we establish some new sufficient conditions on the existence and multiplicity of homoclinic solutions. Recent results are generalized and significantly improved.
Chen, Peng, He, Xiaofei
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Existence and Multiplicity of Homoclinic Solutions for ϕ‐Laplacian Parametric Partial Difference Equations

Mathematical Methods in the Applied Sciences
ABSTRACTBy means of the Ekeland variational principle coupled with the mountain pass lemma, we study a class of nonlinear second‐order parametric partial difference equations involving ‐Laplacian. Taking into account both the cases of large and small , we establish criteria to ensure the existence of two nontrivial homoclinic solutions for ...
Yuhua Long, Sha Li
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Existence and multiplicity of homoclinic solutions for second-order discrete Hamiltonian systems with subquadratic potential

Journal of Difference Equations and Applications, 2011
In the present paper, we deal with the existence and multiplicity of homoclinic solutions of the second-order self-adjoint discrete Hamiltonian system where and are neither autonomous nor periodic in n. Under the assumption that is indefinite sign and subquadratic as and p(n) and L(n) are N × N real symmetric positive definite matrices for all , we ...
X. H. Tang, Xiaoyan Lin
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