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Efficient Numerical Methods for Non-...

Börm, Steffen,

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Efficient Numerical Methods for Non-local Operators = ℋ2-Matrix Compression, Algorithms and Analysis Corrected 2nd printing, September 2013 /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Efficient Numerical Methods for Non-local Operators/ Steffen Börm
Reminder of title:	ℋ2-Matrix Compression, Algorithms and Analysis Corrected 2nd printing, September 2013 /
Author:	Börm, Steffen,
Published:	Zuerich, Switzerland :European Mathematical Society Publishing House, : 2010,
Description:	1 online resource (441 pages)
Subject:	Calculus & mathematical analysis -
Online resource:	https://doi.org/10.4171/091
Online resource:	https://www.ems-ph.org/img/books/börm_mini.jpg
ISBN:	9783037195918

Efficient Numerical Methods for Non-local Operators = ℋ2-Matrix Compression, Algorithms and Analysis Corrected 2nd printing, September 2013 /
Börm, Steffen,

Efficient Numerical Methods for Non-local Operatorsℋ2-Matrix Compression, Algorithms and Analysis Corrected 2nd printing, September 2013 /[electronic resource] :Steffen Börm - Zuerich, Switzerland :European Mathematical Society Publishing House,2010 - 1 online resource (441 pages) - EMS Tracts in Mathematics (ETM)14.

Restricted to subscribers:https://www.ems-ph.org/ebooks.php

Hierarchical matrices present an efficient way of treating dense matrices that arise in the context of integral equations, elliptic partial differential equations, and control theory. While a dense n × n matrix in standard representation requires n2 units of storage, a hierarchical matrix can approximate the matrix in a compact representation requiring only O(nk log n) units of storage, where k is a parameter controlling the accuracy. Hierarchical matrices have been successfully applied to approximate matrices arising in the context of boundary integral methods, to construct preconditioners for partial differential equations, to evaluate matrix functions and to solve matrix equations used in control theory. ℋ2-matrices offer a refinement of hierarchical matrices: using a multilevel representation of submatrices, the efficiency can be significantly improved, particularly for large problems. This books gives an introduction to the basic concepts and presents a general framework that can be used to analyze the complexity and accuracy of ℋ2-matrix techniques. Starting from basic ideas of numerical linear algebra and numerical analysis, the theory is developed in a straightforward and systematic way, accessible to advanced students and researchers in numerical mathematics and scientific computing. Special techniques are only required in isolated sections, e.g., for certain classes of model problems.

ISBN: 9783037195918

Standard No.: 10.4171/091doiSubjects--Topical Terms:

3480907
Calculus & mathematical analysis

Efficient Numerical Methods for Non-local Operators = ℋ2-Matrix Compression, Algorithms and Analysis Corrected 2nd printing, September 2013 /
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