A BDDC ALGORITHM FOR SECOND-ORDER ELLIPTIC PROBLEMS WITH HYBRIDIZABLE DISCONTINUOUS GALERKIN DISCRETIZATIONS

被引：0

作者：

Tu, Xuemin ^{[1
]}

Wang, Bin ^{[1
]}

机构：

[1] Univ Kansas, Dept Math, 1460 Jayhawk Blvd, Lawrence, KS 66045 USA

来源：

ELECTRONIC TRANSACTIONS ON NUMERICAL ANALYSIS | 2016年 / 45卷

关键词：

discontinuous Galerkin; HDG; domain decomposition; BDDC; BALANCING DOMAIN DECOMPOSITION; SCHWARZ PRECONDITIONERS; FINITE-ELEMENT; FETI-DP; APPROXIMATION; CONSTRAINTS; FLOW;

D O I：

暂无

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

A balancing domain decomposition by constraints (BDDC) algorithm is applied to the linear system arising from a hybridizable discontinuous Galerkin (HDG) discretization of the second-order elliptic problems. Edge/face constraints are enforced across the subdomain interface and the similar condition number bound is obtained as those for conforming finite element discretization. Numerical experiments demonstrate the convergence rate of the proposed algorithm.

引用

页码：354 / 370

页数：17

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