{ "id": "1612.02417", "version": "v1", "published": "2016-12-07T20:52:37.000Z", "updated": "2016-12-07T20:52:37.000Z", "title": "Conservative methods for dynamical systems", "authors": [ "Andy T. S. Wan", "Alexander Bihlo", "Jean-Christophe Nave" ], "comment": "29 pages", "categories": [ "math.NA" ], "abstract": "We show a novel systematic way to construct conservative finite difference schemes for quasilinear first-order system of ordinary differential equations with conserved quantities. In particular, this includes both autonomous and non-autonomous dynamical systems with conserved quantities of arbitrary forms, such as time-dependent conserved quantities. Sufficient conditions to construct conservative schemes of arbitrary order are derived using the multiplier method. General formulas for first-order conservative schemes are constructed using divided difference calculus. New conservative schemes are found for various dynamical systems such as Euler's equation of rigid body rotation, Lotka-Volterra systems, the planar restricted three-body problem and the damped harmonic oscillator.", "revisions": [ { "version": "v1", "updated": "2016-12-07T20:52:37.000Z" } ], "analyses": { "subjects": [ "65L05", "65L06", "65L12", "65L20", "65P10", "65Z05", "37M05", "37M15" ], "keywords": [ "dynamical systems", "conservative methods", "conservative schemes", "conserved quantities", "construct conservative finite difference schemes" ], "note": { "typesetting": "TeX", "pages": 29, "language": "en", "license": "arXiv", "status": "editable" } } }