An Efficient Spectral Petrov-Galerkin Method for Nonlinear Hamiltonian Systems

An Efficient Spectral Petrov-Galerkin Method for Nonlinear Hamiltonian Systems

Year:    2019

Author:    Jing An, Waixiang Cao, Zhimin Zhang

Communications in Computational Physics, Vol. 26 (2019), Iss. 5 : pp. 1249–1273

Abstract

In this paper, an efficient spectral Petrov-Galerkin time-stepping method for solving nonlinear Hamiltonian systems is presented and studied. Conservation properties of the proposed method (including symplectic structure preserving and energy conservation) are discussed. Iterative algorithm on how to discretize the nonlinear term is introduced and the uniqueness, stability and convergence properties of the iterative algorithm are also established. Finally, numerical experiments are presented to verify the efficiency of our algorithm.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/cicp.2019.js60.11

Communications in Computational Physics, Vol. 26 (2019), Iss. 5 : pp. 1249–1273

Published online:    2019-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    25

Keywords:    Nonlinear Hamiltonian system spectral Petrov-Galerkin method iterative algorithm energy conservation symplectic structure.

Author Details

Jing An

Waixiang Cao

Zhimin Zhang