Iterative oversampling technique for constraint energy minimizing generalized multiscale finite element method in the mixed formulation

作者：

Highlights：

• A new iterative oversampling technique for Darcy flow in heterogeneous and high contrast media.

• The convergence of the proposed method is exponential with respect to the number of iterations.

• A rigorous proof is provided for the proposed method.

摘要

•A new iterative oversampling technique for Darcy flow in heterogeneous and high contrast media.•The convergence of the proposed method is exponential with respect to the number of iterations.•A rigorous proof is provided for the proposed method.

论文关键词：Mixed formulation,Iterative construction,Oversampling,Multiscale methods,Constraint energy minimization

论文评审过程：Received 24 February 2021, Revised 9 August 2021, Accepted 24 August 2021, Available online 10 October 2021, Version of Record 10 October 2021.

论文官网地址：https://doi.org/10.1016/j.amc.2021.126622