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Volume preservation by Runge–Kutta methods

dc.creatorBader, Philipp
dc.creatorMcLaren, David I.
dc.creatorQuispel, G. R. W.
dc.creatorWebb, Marcus
dc.date.accessioned2016-06-29
dc.date.accessioned2018-11-24T23:19:17Z
dc.date.available2016-08-12T08:58:42Z
dc.date.available2018-11-24T23:19:17Z
dc.date.issued2016-07-12
dc.identifierhttps://www.repository.cam.ac.uk/handle/1810/257255
dc.identifier.urihttp://repository.aust.edu.ng/xmlui/handle/123456789/3414
dc.description.abstractIt 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.
dc.languageen
dc.publisherElsevier
dc.publisherApplied Numerical Mathematics
dc.rightshttp://creativecommons.org/licenses/by/4.0/
dc.rightsAttribution 4.0 International
dc.subjectvolume preservation
dc.subjectRunge–Kutta method
dc.subjectmeasure preservation
dc.subjectKahan’s method
dc.titleVolume preservation by Runge–Kutta methods
dc.typeArticle


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