A hybrid collocation-perturbation approach for PDEs with random domains
A hybrid collocation-perturbation approach for PDEs with random domains
复制标题
随机域偏微分方程的混合配置扰动方法
DOI:
10.1007/s10444-021-09859-6
复制
发表时间:
2021
影响因子:
1.7
通讯作者:
Tempone, Raúl F.
中科院分区:
文献类型:
--
作者:
Castrillón-Candás, Julio E.;Nobile, Fabio;Tempone, Raúl F.
Consider a linear elliptic PDE defined over a stochastic stochastic geometry a function ofNrandom variables. In many application, quantify the uncertainty propagated to a quantity of interest (QoI) is an important problem. The random domain is split into large and small variations contributions. The large variations are approximated by applying a sparse grid stochastic collocation method. The small variations are approximated with a stochastic collocation-perturbation method and added as a correction term to the large variation sparse grid component. Convergence rates for the variance of the QoI are derived and compared to those obtained in numerical experiments. Our approach significantly reduces the dimensionality of the stochastic problem making it suitable for large dimensional problems. The computational cost of the correction term increases at most quadratically with respect to the number of dimensions of the small variations. Moreover, for the case that the small and large variations are independent the cost increases linearly.
登录
查看更多内容
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
E. Ionascu
通讯作者:
E. Ionascu
DOI:
--
发表时间:
2002
期刊:
SPIE Optics + Photonics
影响因子:
--
作者:
V. Kober;J. Álvarez
通讯作者:
J. Álvarez
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
M. Dambrine;H. Harbrecht;B. Puig
通讯作者:
B. Puig
DOI:
10.1016/j.cma.2016.10.008
发表时间:
2017-01-01
影响因子:
7.2
作者:
Guignard, Diane;Nobile, Fabio;Picasso, Marco
通讯作者:
Picasso, Marco
DOI:
10.1016/j.camwa.2021.04.005
发表时间:
2021-07-01
期刊:
Computers & mathematics with applications (Oxford, England : 1987)
影响因子:
--
作者:
Castrillón-Candás JE;Xu J
通讯作者:
Xu J