Results 61 to 70 of about 28,061 (167)

Homoclinics for strongly indefinite almost periodic second order Hamiltonian systems

Advances in Nonlinear Analysis, 2017
Under certain assumptions, we prove the existence of homoclinic solutions for almost periodic second order Hamiltonian systems in the strongly indefinite case.
Pankov Alexander
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Bifurcation analysis of ion-acoustic waves in an adiabatic trapped electron and warm ion plasma

Journal of Taibah University for Science, 2020
Bifurcation analysis of ion-acoustic waves in complex plasmas in the presence of adiabatic trapped electrons and warm ions is studied. Using bifurcation theory of dynamical structure, the Hamiltonian system inculpated electrostatic potential is derived ...
Alireza Abdikian, Asit Saha, Shirin Alimirzaei   +2 more
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Weak separation limit of a two-component Bose-Einstein condensate

Electronic Journal of Differential Equations, 2018
This paper studies of the behaviour of the wave functions of a two-component Bose-Einstein condensate in the case of weak segregation. This amounts to the study of the asymptotic behaviour of a heteroclinic connection in a conservative Hamiltonian ...
Christos Sourdis
doaj  

New soliton, kink and periodic solutions for fractional space–time coupled Schrödinger equation

Alexandria Engineering Journal
This work investigates the time–space fractional coupled nonlinear Schrödinger equation. By applying an appropriate wave transformation, this equation is converted into a fourth-order system of ordinary differential equations, equivalent to a Hamiltonian
Manal Alharbi, Adel Elmandouh, Mamdouh Elbrolosy   +2 more
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Non-homogeneous BVPs for second-order symmetric Hamiltonian systems

Open Mathematics
By making use of Bolle’s method, we show that the following problem has infinitely many solutions: x¨+V′(x)=0,x(0)cosα−x˙(0)sinα=x0,x(1)cosβ−x˙(1)sinβ=x1,\begin{array}{rcl}\ddot{x}+{V}^{^{\prime} }\left(x)& =& 0,\\ x\left(0)\cos \alpha -\dot{x}\left(0 ...
Chen Yingying, Dong Yujun, Wang Baiqian
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Linear type global centers of cubic Hamiltonian systems symmetric with respect to the x-axis

Electronic Journal of Differential Equations, 2020
A polynomial differential system of degree 2 has no global centers (that is, centers defined in all the plane except the fixed point). In this paper we characterize the global centers of cubic Hamiltonian systems symmetric with respect to the x-axis ...
Luis Barreira, Jaume Llibre, Claudia Valls   +2 more
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Bifurcations for Hamiltonian systems

Advanced Nonlinear Studies
Our assumptions and results include the following special versions: for a topological space Λ and H∈C(Λ×S1×R2n) $H\in C\left({\Lambda}{\times}{S}^{1}{\times}{\mathbb{R}}^{2n}\right)$ , S1=R/Z ${S}^{1}=\mathbb{R}/\mathbb{Z}$ , suppose that each H(λ, t, ⋅)
Lu Guangcun
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Power oscillation suppression strategy of VSG based on finite‐time Hamiltonian method

IET Power Electronics
In order to improve the stability of the virtual synchronous generator (VSG) system and suppress the power oscillation, a power oscillation suppression strategy of VSG based on the finite‐time Hamiltonian method is proposed in this paper.
Guo Xiaomei, Yonggang Li, Yichen Zhou
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Numerical simulations for the Toda lattices Hamiltonian system: Higher order symplectic illustrative perspective. [PDF]

PLoS One, 2019
Mushtaq A, Noreen A, Farooq MA.
europepmc   +1 more source

Noether's symmetry and conserved quantity for a time-delayed Hamiltonian system of Herglotz type. [PDF]

R Soc Open Sci, 2018
Zhang Y.
europepmc   +1 more source