Stochastic and variational approach to the Lax-Friedrichs scheme
Stochastic and variational approach to the Lax-Friedrichs scheme
复制标题
Lax-Friedrichs 方案的随机和变分方法
DOI:
10.1090/s0025-5718-2014-02863-9
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
K. Soga
中科院分区:
文献类型:
--
作者:
K. Soga
In this paper we present a stochastic and variational aspect of the Lax-Friedrichs scheme applied to hyperbolic scalar conservation laws. This is a finite difference version of Fleming’s results (’69) that the vanishing viscosity method is characterized by stochastic processes and calculus of variations. We convert the difference equation into that of the Hamilton-Jacobi type and introduce corresponding calculus of variations with random walks. The stability of the scheme is obtained through the calculus of variations. The convergence of approximation is derived from the law of large numbers in hyperbolic scaling limit of random walks. The main advantages due to our approach are the following: Our framework is basically ae pointwise convergence with characterization of “ae”, which yields uniform convergence except “small” neighborhoods of shocks; The stability and convergence proofs are verified for arbitrarily large time interval, which are hard to obtain in the case of flux functions of general types depending on both space and time; the approximation of characteristic curves is available as well as that of PDE-solutions, which is particularly important for applications of the Lax-Friedrichs scheme to the weak KAM theory. References
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DOI:
10.4213/sm435
发表时间:
1999
期刊:
Matematicheskii Sbornik
影响因子:
--
作者:
Андрей Николаевич Соболевский;Andrei Nikolaevich Sobolevskii
通讯作者:
Andrei Nikolaevich Sobolevskii
影响因子:
1.4
作者:
K. Soga
通讯作者:
K. Soga
DOI:
10.1142/s0252959904000299
发表时间:
2004-07
期刊:
Chinese Annals of Mathematics
影响因子:
--
作者:
K. Karlsen;John D. Towers
通讯作者:
K. Karlsen;John D. Towers
影响因子:
1.2
作者:
N. Anantharaman;R. Iturriaga;P. Padilla;H. Sánchez
通讯作者:
H. Sánchez
DOI:
10.1090/mcom/3061
发表时间:
2016
期刊:
Math. Comput.
影响因子:
--
作者:
K. Soga
通讯作者:
K. Soga