A preconditioner for the FETI-DP method for mortar-type Crouzeix-Raviart element discretization

被引：0
作者：
Chunmei Wang
机构：
[1] Georgia Institute of Technology,School of Mathematics
[2] Nanjing Normal University,Taizhou College
来源：
Applications of Mathematics | 2014年 / 59卷
关键词：
FETI-DP; Crouzeix-Raviart element; nonstandard mortar condition; preconditioner; 65N30; 65N38;
D O I：
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学科分类号：
摘要：
In this paper, we consider mortar-type Crouzeix-Raviart element discretizations for second order elliptic problems with discontinuous coefficients. A preconditioner for the FETI-DP method is proposed. We prove that the condition number of the preconditioned operator is bounded by (1 + log(H/h))2, where H and h are mesh sizes. Finally, numerical tests are presented to verify the theoretical results.
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页码：653 / 672
页数：19
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