It is a classical theorem of Liouville that Hamiltonian systems preserve volume in phase space. Any symplectic Runge-Kutta method will respect this property for such systems, but it has been shown by Iserles, Quispel and Tse and independently by Chartier and Murua that no B-Series method can be volume preserving for all volume preserving vector fields. In this paper, we show that despite this result, symplectic Runge-Kutta methods can be volume preserving for a much larger class of vector fields than Hamiltonian systems, and discuss how some Runge-Kutta methods can preserve a modified measure exactly. (C) 2016 IMACS. Published by Elsevier B.V. All rights reserved.
机构:
Jilin Univ, Inst Math, Changchun 130012, Peoples R ChinaJilin Univ, Inst Math, Changchun 130012, Peoples R China
Wang, Peng
Hong, Jialin
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, State Key Lab Sci & Engn Comp, Beijing 100080, Peoples R ChinaJilin Univ, Inst Math, Changchun 130012, Peoples R China
Hong, Jialin
Xu, Dongsheng
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, State Key Lab Sci & Engn Comp, Beijing 100080, Peoples R China
Univ Chinese Acad Sci, Beijing, Peoples R ChinaJilin Univ, Inst Math, Changchun 130012, Peoples R China
机构:
Jilin Univ, Inst Math, Changchun 130012, Peoples R ChinaJilin Univ, Inst Math, Changchun 130012, Peoples R China
Wang, Peng
Hong, Jialin
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, State Key Lab Sci & Engn Comp, Beijing 100080, Peoples R ChinaJilin Univ, Inst Math, Changchun 130012, Peoples R China
Hong, Jialin
Xu, Dongsheng
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, State Key Lab Sci & Engn Comp, Beijing 100080, Peoples R China
Univ Chinese Acad Sci, Beijing, Peoples R ChinaJilin Univ, Inst Math, Changchun 130012, Peoples R China