Svetozar Margenov

Prof. Dr. Svetozar Margenov

Institute of Information and Communication Technologies, Bulgarian Academy of Sciences, Sofia, Bulgaria
orcid

Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 May 2020 in Journal of Computational Physics
Verified
Journal Article
Closed access
SHStanislav Harizanov
Stanislav Harizanov
RLRaytcho Lazarov
Raytcho Lazarov
Svetozar MargenovSvetozar Margenov
Svetozar Margenov
PMPencho Marinov
Pencho Marinov
JPJoseph Pasciak
Joseph Pasciak

16 December 2020 in Fractional Calculus and Applied Analysis
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Journal Article
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SHStanislav Harizanov
Stanislav Harizanov
RLRaytcho Lazarov
Raytcho Lazarov
Svetozar MargenovSvetozar Margenov
Svetozar Margenov

1 July 2014 in Computers & Mathematics with Applications
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Journal Article
Closed access
SSStanislav Stoykov
Stanislav Stoykov
Svetozar MargenovSvetozar Margenov
Svetozar Margenov

1 January 2012 in Computational Methods in Applied Mathematics
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Journal Article
Open access
Yalchin EfendievYalchin Efendiev
Yalchin Efendiev
JGJUAN GALVIS
JUAN GALVIS
RLRaytcho Lazarov
Raytcho Lazarov
Svetozar MargenovSvetozar Margenov
Svetozar Margenov
JRJun Ren
Jun Ren
In this paper we discuss robust two-level domain decomposition preconditioners for highly anisotropic heterogeneous multiscale problems. We present a construction of several coarse spaces that employ standard finite element and multiscale basis functions and discuss techniques to reduce the dimensions of coarse spaces without sacrificing the robustness. We experimentally study the performance of the preconditioner on a variety two-dimensional test problems with channels of high anisotropy. The numerical tests confirm the robustness of the perconditioner with respect to the underlying physical parameters.

19 April 2004 in Numerical Linear Algebra with Applications
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Journal Article
Closed access
RBR. Blaheta
R. Blaheta
Svetozar MargenovSvetozar Margenov
Svetozar Margenov
MNM. Neytcheva
M. Neytcheva

3 May 2005 in Numerical Linear Algebra with Applications
Verified
Journal Article
Closed access
PDF file
RBR. Blaheta
R. Blaheta
Svetozar MargenovSvetozar Margenov
Svetozar Margenov
MNM. Neytcheva
M. Neytcheva