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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

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BA - General mathematics

  • OECD FORD branch

Result continuities

  • Project

  • 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

  • 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