Fast weak-KAM integrators for separable Hamiltonian systems
Fast weak-KAM integrators for separable Hamiltonian systems
复制标题
用于可分离哈密顿系统的快速弱 KAM 积分器
DOI:
10.1090/mcom/2976
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
M. Zavidovique
中科院分区:
文献类型:
--
作者:
Anne Bouillard;E. Faou;M. Zavidovique
We consider a numerical scheme for Hamilton-Jacobi equations based on a direct discretization of the Lax-Oleinik semi-group. We prove that this method is convergent with respect to the time and space stepsizes provided the solution is Lipschitz, and give an error estimate. Moreover, we prove that the numerical scheme is a {\em geometric integrator} satisfying a discrete weak-KAM theorem which allows to control its long time behavior. Taking advantage of a fast algorithm for computing min-plus convolutions based on the decomposition of the function into concave and convex parts, we show that the numerical scheme can be implemented in a very efficient way.
DOI:
10.1090/s0025-5718-2014-02863-9
发表时间:
2015
期刊:
Math. Comput.
影响因子:
--
作者:
K. Soga
通讯作者:
K. Soga