Energy-preserving variant of collocation methods 1

Energy-preserving variant of collocation methods 1
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发表时间:
2010
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通讯作者:
E. Hairer
E. Hairer
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其他
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作者:
E. Hairer

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我们提出了一种改进的配置方法,将“平均向量场法”推广到高阶。这些新的积分器完全保持能量的哈密顿系统,是任意高的顺序,并落入类的B-级数积分器。我们讨论了它们的对称性和共轭辛性,并将它们与能量守恒复合方法进行了比较。2010年欧洲科学与工程计算方法学会
We propose a modification of collocation methods extending the 'averaged vector field method' to high order. These new integrators exactly preserve energy for Hamiltonian systems, are of arbitrarily high order, and fall into the class of B-series integrators. We discuss their symmetry and conjugate-symplecticity, and we compare them to energy- preserving composition methods. c 2010 European Society of Computational Methods in Sciences and Engineering