Preservation of Equilibria for Symplectic Methods Applied to Hamiltonian Systems-中国期刊网

摘要 Inthispaper,thelinearstabilityofsymplecticmethodsforHamiltoniansystemsisstudied.Inparticular,threeclassesofsymplecticmethodsareconsidered:symplecticRunge-Kutta(SRK)methods,symplecticpartitionedRunge-Kutta(SPRK)methodsandthecompositionmethodsbasedonSRKorSPRKmethods.ItisshownthattheSRKmethodsandtheircompositionspreservetheellipticityofequilibriumpointsunconditionally,whereastheSPRKmethodsandtheircompositionshavesomerestrictionsonthetime-step.

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Preservation of Equilibria for Symplectic Methods Applied to Hamiltonian Systems

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Preservation of Equilibria for Symplectic Methods Applied to Hamiltonian Systems

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