Is Symplectic-Energy-Momentum Integration Well-Posed?
Is Symplectic-Energy-Momentum Integration Well-Posed?
复制标题
辛能量动量积分是否适定?
DOI:
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发表时间:
2006
期刊:
影响因子:
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通讯作者:
Y. Shibberu
中科院分区:
文献类型:
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作者:
Y. Shibberu
We provide new existence and uniqueness results for the discrete-time Hamilton (DTH) equations of a symplectic-energy-momentum (SEM) integrator. In particular, we identify points in extended-phase space where the DTH equations of SEM integration have no solution for arbitrarily small time steps. We use the nonlinear pendulum to illustrate the main ideas.