An efficient Jacobi pseudospectral approximation for nonlinear complex generalized Zakharov system

AH Bhrawy - Applied Mathematics and Computation, 2014 - Elsevier
In this paper, we derive an efficient spectral collocation algorithm to solve numerically the
nonlinear complex generalized Zakharov system (GZS) subject to initial-boundary …

Multi-symplectic scheme for the coupled Schrödinger—Boussinesq equations

LY Huang, YD Jiao, DM Liang - Chinese Physics B, 2013 - iopscience.iop.org
In this paper, a multi-symplectic Hamiltonian formulation is presented for the coupled
Schrödinger—Boussinesq equations (CSBE). Then, a multi-symplectic scheme of the CSBE …

Conformal structure-preserving method for damped nonlinear Schrödinger equation

H Fu, WE Zhou, X Qian, SH Song, LY Zhang - Chinese Physics B, 2016 - iopscience.iop.org
In this paper, we propose a conformal momentum-preserving method to solve a damped
nonlinear Schrödinger (DNLS) equation. Based on its damped multi-symplectic formulation …

Average vector field methods for the coupled Schrödinger—KdV equations

H Zhang, SH Song, XD Chen, WE Zhou - Chinese Physics B, 2014 - iopscience.iop.org
The energy preserving average vector field (AVF) method is applied to the coupled
Schrödinger—KdV equations. Two energy preserving schemes are constructed by using …

[PDF][PDF] Two kinds of new energy-preserving schemes for the coupled nonlinear Schrödinger equations

M Song, X Qian, H Zhang, J **a, S Song - Commun. Comput. Phys., 2019 - global-sci.com
In this paper, we mainly propose two kinds of high-accuracy schemes for the coupled
nonlinear Schrödinger (CNLS) equations, based on the Fourier pseudospectral method …

A conservative Fourier pseudospectral algorithm for a coupled nonlinear Schrödinger system

JX Cai, YS Wang - Chinese Physics B, 2013 - iopscience.iop.org
We derive a new method for a coupled nonlinear Schrödinger system by using the square of
first-order Fourier spectral differentiation matrix D 1 instead of traditional second-order …

[HTML][HTML] Numerical simulation for the solitary wave of Zakharov–Kuznetsov equation based on lattice Boltzmann method

H Wang - Applied Mathematical Modelling, 2017 - Elsevier
Abstract The Zakharov–Kuznetsov equation is considered, which is an equation describing
two dimensional weakly nonlinear ion-acoustic waves in plasma. We focus on using the …

Novel conservative methods for Schrödinger equations with variable coefficients over long time

X Qian, Y Chen, S Song - Communications in Computational Physics, 2014 - cambridge.org
In this paper, we propose a wavelet collocation splitting (WCS) method, and a Fourier
pseudospectral splitting (FPSS) method as comparison, for solving one-dimensional and …

Multi-symplectic method for the coupled Schrödinger—KdV equations

H Zhang, SH Song, WE Zhou, XD Chen - Chinese Physics B, 2014 - iopscience.iop.org
In this paper, we present a multi-symplectic Hamiltonian formulation of the coupled
Schrödinger-KdV equations (CSKE) with periodic boundary conditions. Then we develop a …

Multisymplectic implicit and explicit methods for Klein—Gordon—Schrödinger equations

JX Cai, B Yang, H Liang - Chinese Physics B, 2013 - iopscience.iop.org
We propose multisymplectic implicit and explicit Fourier pseudospectral methods for the
Klein—Gordon—Schrödinger equations. We prove that the implicit method satisfies the …