A general approach to analyse preconditioners two-by-two block matrices

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F12%3A00373829" target="_blank" >RIV/68145535:_____/12:00373829 - isvavai.cz</a>
Result on the web
<a href="http://www.quosafulltext.com/sc_ddm/sc_ddm.jsp" target="_blank" >http://www.quosafulltext.com/sc_ddm/sc_ddm.jsp</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/nla.830" target="_blank" >10.1002/nla.830</a>

Result language
angličtina
Original language name
A general approach to analyse preconditioners two-by-two block matrices
Original language description
Two?by?two block matrices arise in various applications, such as in domain decomposition methods or when solving boundary value problems discretised by finite elements from the separation of the node set of the mesh into ?fine? and ?coarse? nodes. Matrices with such a structure, in saddle point form arise also in mixed variable finite element methods and in constrained optimisation problems. A general algebraic approach to construct, analyse and control the accuracy of preconditioners for matrices in two?by?two block form is presented. This includes both symmetric and nonsymmetric matrices, as well as indefinite matrices. The action of the preconditioners can involve element?by?element approximations and/or geometric multigrid/multilevel methods.
Czech name
—
Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BA - General mathematics
OECD FORD branch
—

Project
<a href="/en/project/GA105%2F09%2F1830" target="_blank" >GA105/09/1830: Multiscale modelling and X-Ray thomography in geotechnics</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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