Show simple item record

dc.contributor.author李红伟
dc.contributor.author卢琳璋
dc.date.accessioned2017-11-14T02:50:51Z
dc.date.available2017-11-14T02:50:51Z
dc.date.issued2006-09-30
dc.identifier.citation数学研究,2006,(03):11-21
dc.identifier.issn1006-6837
dc.identifier.otherSSYJ200603001
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/154704
dc.description.abstract本文给出了重新启动的LGMRES方法的一种代价更小的实现方式.这种做法基于消除以下减慢收敛速度的现象:重新启动的simpler GMRES的每次循环结束时得到的残向量经常交替方向,与重新启动的GMRES的情形类似.这种新的变形的方法的优点是它比重新启动的LGMRES所需要的计算量要少.大量的例子表明该方法计算速度更快.
dc.description.abstractThis paper describes a simpler form of restarted LGMRES,augmented with several previous approximate errors.This is based on the fact that the residual vectors at the end of each restart cycle of restarted simpler GMRES also alternate direction in a cyclic fashion,similar to the case for restarted GMRES.The advantage for the new variant is that it requires less amount of work than restarted LGMRES and the experiments results show that it has better performance.
dc.description.sponsorshipThis work is supported by National Natural Science Foundation of China(10531080)
dc.language.isozh_CN
dc.subjectSimplerGMRES
dc.subject重新启动
dc.subjectKrylov子空间方法
dc.subjectLGMRES
dc.subjectSimpler GMRES
dc.subjectrestart
dc.subjectKrylov subspace methods
dc.subjectLGMRES
dc.title添加近似误差的重新启动的simpler GMRES方法(英文)
dc.title.alternativeRestarted Simpler GMRES Augmented with Approximate Errors
dc.typeArticle


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record