%0 Journal Article
%T AN ADDITIVE SCHWARZ PRECONDITIONER FOR P1 NONCONFORMING QUADRILATERAL FINITE ELEMENT METHODSFOR ELLIPTIC EQUATIONS WITH JUMP COEFFICIENTS<br>带间断系数椭圆问题的P1非协调四边形元的加性 Schwarz 方法
%A Wang Feng
%A Chen Jinru
%A <br>王锋
%A 陈金如
%J 计算数学
%D 2009
%I 
%X In this paper,we propose a two level additive Schwarz preconditioner for P_1 nonconforming quadrilateral finite element approximations of elliptic equations with jump coefficients. By analyzing the eigenvalue distribution of the additive Schwarz preconditioned systems,we prove that except a small number of eigenvalues,all the other eigenvalues are bounded below and above nearly uniformly with respect to the jump coefficients and meshsize.Therefore,we can get that the convergence rate of the preconditioned c...
%K nonconforming finite element
%K jump coefficients
%K domain decomposition
%K additive Schwarz method<br>非协调元
%K 问断系数
%K 区域分解
%K 加性Schwarz方法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=37F46C35E03B4B86&jid=CC77F3CEF526D9CF0B3021650FB4E57E&aid=670E0A41241FA9F80F1614ABE8738393&yid=DE12191FBD62783C&vid=4AD960B5AD2D111A&iid=0B39A22176CE99FB&sid=79D2EF35F60110C2&eid=A1266CF37D675CF1&journal_id=0254-7791&journal_name=计算数学&referenced_num=0&reference_num=30