In a recent series of papers, the class of energy-conserving Runge-Kutta methods named Hamiltonian BVMs (HBVMs) has been defined and studied. Such methods have been further generalized for the efficient solution of general conservative problems, thus providing the class of Line Integral Methods (LIMs). In this paper we derive a further extension, which we name Enhanced Line Integral Methods (ELIMs), more tailored for Hamiltonian problems, allowing for the conservation of multiple invariants of the continuous dynamical system. The analysis of the methods is fully carried out and some numerical tests are reported, in order to confirm the theoretical achievements.

Multiple invariants conserving Runge-Kutta type methods for Hamiltonian problems / L.Brugnano; Y.Sun. - In: NUMERICAL ALGORITHMS. - ISSN 1017-1398. - STAMPA. - 65:(2014), pp. 611-632. [10.1007/s11075-013-9769-9]

Multiple invariants conserving Runge-Kutta type methods for Hamiltonian problems

BRUGNANO, LUIGI;
2014

Abstract

In a recent series of papers, the class of energy-conserving Runge-Kutta methods named Hamiltonian BVMs (HBVMs) has been defined and studied. Such methods have been further generalized for the efficient solution of general conservative problems, thus providing the class of Line Integral Methods (LIMs). In this paper we derive a further extension, which we name Enhanced Line Integral Methods (ELIMs), more tailored for Hamiltonian problems, allowing for the conservation of multiple invariants of the continuous dynamical system. The analysis of the methods is fully carried out and some numerical tests are reported, in order to confirm the theoretical achievements.
2014
65
611
632
L.Brugnano; Y.Sun
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/816315
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