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Towards robust algebraic multigrid m...

Lottes, James.

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Towards robust algebraic multigrid methods for nonsymmetric problems

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Towards robust algebraic multigrid methods for nonsymmetric problems/ by James Lottes.
作者:	Lottes, James.
出版者:	Cham :Springer International Publishing : : 2017.,
面頁冊數:	x, 131 p. :ill. (some col.), digital ;24 cm.
內容註:	Introduction -- Theoretical Foundations -- Form Absolute Value -- Convergence Theory -- Application to a New AMG Method -- Conclusions.
Contained By:	Springer eBooks
標題:	Multigrid methods (Numerical analysis) -
電子資源:	http://dx.doi.org/10.1007/978-3-319-56306-0
ISBN:	9783319563060

Towards robust algebraic multigrid methods for nonsymmetric problems
Lottes, James.

Towards robust algebraic multigrid methods for nonsymmetric problems[electronic resource] /by James Lottes. - Cham :Springer International Publishing :2017. - x, 131 p. :ill. (some col.), digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

Introduction -- Theoretical Foundations -- Form Absolute Value -- Convergence Theory -- Application to a New AMG Method -- Conclusions.

This thesis presents a rigorous, abstract analysis of multigrid methods for positive nonsymmetric problems, particularly suited to algebraic multigrid, with a completely new approach to nonsymmetry which is based on a new concept of absolute value for nonsymmetric operators. Multigrid, and in particular algebraic multigrid, has become an indispensable tool for the solution of discretizations of partial differential equations. While used in both the symmetric and nonsymmetric cases, the theory for the nonsymmetric case has lagged substantially behind that for the symmetric case. This thesis closes some of this gap, presenting a major and highly original contribution to an important problem of computational science. The new approach to nonsymmetry will be of interest to anyone working on the analysis of discretizations of nonsymmetric operators, even outside the context of multigrid. The presentation of the convergence theory may interest even those only concerned with the symmetric case, as it sheds some new light on and extends existing results.

ISBN: 9783319563060

Standard No.: 10.1007/978-3-319-56306-0doiSubjects--Topical Terms:

663142
Multigrid methods (Numerical analysis)

LC Class. No.: QA377

Dewey Class. No.: 518.2

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