Title
Symplectic integrators for second-order linear non-autonomous equations.
Abstract
Two families of symplectic methods specially designed for second-order time-dependent linear systems are presented. Both are obtained from the Magnus expansion of the corresponding first-order equation, but otherwise they differ in significant aspects. The first family is addressed to problems with low to moderate dimension, whereas the second is more appropriate when the dimension is large, in particular when the system corresponds to a linear wave equation previously discretised in space. Several numerical experiments illustrate the main features of the new schemes.
Year
DOI
Venue
2018
10.1016/j.cam.2017.03.028
Journal of Computational and Applied Mathematics
Keywords
Field
DocType
65L07,65L05,65Z05
Symplectic manifold,Mathematical analysis,Magnus expansion,Symplectic vector space,Moment map,Symplectic matrix,Symplectic representation,Symplectic integrator,Variational integrator,Mathematics
Journal
Volume
Issue
ISSN
330
C
0377-0427
Citations 
PageRank 
References 
1
0.50
4
Authors
5
Name
Order
Citations
PageRank
Philipp Bader1163.20
S. Blanes24210.47
Fernando Casas37418.30
Nikita Kopylov420.89
Enrique Ponsoda5267.00