Multi-level Monte Carlo weak Galerkin method for elliptic equations with stochastic jump coefficients
Multi-level Monte Carlo weak Galerkin method for elliptic equations with stochastic jump coefficients
复制标题
具有随机跳跃系数的椭圆方程的多级蒙特卡洛弱伽辽金法
DOI:
10.1016/j.amc.2015.11.064
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发表时间:
2016-02
影响因子:
4
通讯作者:
Zhang Kai
中科院分区:
文献类型:
--
作者:
Li Jjingshi;Wang Xiaoshen;Zhang Kai
In this paper, we present a multi-level Monte Carlo weak Galerkin method for solving elliptic equations with stochastic jump coefficients. The multi-level Monte Carlo technique balances the spatial approximation error and the sampling error. The weak Galerkin technique is a stable and high-order accurate method which can easily handle deterministic partial differential equations with complex geometries or jump coefficients given by each sample, and this method is also able to capture highly complex solutions exhibiting discontinuities or oscillations with high resolution. Comparing with the standard Monte Carlo method, by using the multi-level Monte Carlo weak Galerkin method, the computational cost can be sharply reduced to log-linear complexity with respect to the degree of freedom in spatial direction. The numerical experiments verify the efficiency of our algorithms.
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影响因子:
2.1
作者:
Lin Mu;Junping Wang;Yanqi Wang;X. Ye
通讯作者:
Lin Mu;Junping Wang;Yanqi Wang;X. Ye
DOI:
10.1090/s0025-5718-2014-02852-4
发表时间:
2012-02
期刊:
Math. Comput.
影响因子:
--
作者:
Junping Wang;X. Ye
通讯作者:
Junping Wang;X. Ye
DOI:
10.1137/130916126
发表时间:
2014-05
期刊:
SIAM J. Numer. Anal.
影响因子:
--
作者:
R. Kornhuber;C. Schwab;M. Wolf
通讯作者:
R. Kornhuber;C. Schwab;M. Wolf
DOI:
10.1007/978-3-319-33507-0_14
发表时间:
2016
期刊:
--
影响因子:
--
作者:
Giles M
通讯作者:
Giles M
影响因子:
4.6
作者:
Sobol, IM
通讯作者:
Sobol, IM