Preconditioners for regularized saddle point matrices
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F11%3A00361645" target="_blank" >RIV/68145535:_____/11:00361645 - isvavai.cz</a>
Result on the web
<a href="http://www.degruyter.com/view/j/jnma.2011.19.issue-2/jnum.2011.005/jnum.2011.005.xml" target="_blank" >http://www.degruyter.com/view/j/jnma.2011.19.issue-2/jnum.2011.005/jnum.2011.005.xml</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1515/JNUM.2011.005" target="_blank" >10.1515/JNUM.2011.005</a>
Alternative languages
Result language
angličtina
Original language name
Preconditioners for regularized saddle point matrices
Original language description
Saddle point problems with singular or indefinite pivot blockmatrix arise in various applications. In some problems it may be necessary to regularize the corresponding matrix is some way. By straightforward derivations it is shown that use of certain preconditioners on block diagonal and block triangular form can be very efficient, both for the original matrix and for its regularized forms. As the value of regularization parameter increases, the eigenvalues cluster at unity or at just two points on thereal line.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BA - General mathematics
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Numerical Mathematics
ISSN
1570-2820
e-ISSN
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Volume of the periodical
19
Issue of the periodical within the volume
2
Country of publishing house
DE - GERMANY
Number of pages
23
Pages from-to
91-112
UT code for WoS article
000292773100001
EID of the result in the Scopus database
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