Geodesic
Approximation of the minimal Geršgorin set of a square complex matrix
Electronic transactions on numerical analysis, Tome 30 (2008), pp. 398-405
In this paper, we address the problem of finding a numerical approximation to the minimal Ger$\check $sgorin set, $\Gamma R(A)$, of an irreducible matrix A in Cn,n. In particular, boundary points of $\Gamma R(A)$ are related to a wellknown result of Olga Taussky.
Classification : 15A18, 65F15
Keywords: eigenvalue localization, ger$\check $sgorin theorem, minimal ger$\check $sgorin set 
@article{ETNA_2008__30__a1,
     author = {Varga,  Richard S. and Cvetkovi\'c,  Ljiljana and Kosti\'c,  Vladimir},
     title = {Approximation of the minimal {Ger\v{s}gorin} set of a square complex matrix},
     journal = {Electronic transactions on numerical analysis},
     pages = {398--405},
     year = {2008},
     volume = {30},
     zbl = {1188.15008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2008__30__a1/}
}
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AU  - Cvetković,  Ljiljana
AU  - Kostić,  Vladimir
TI  - Approximation of the minimal Geršgorin set of a square complex matrix
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%A Kostić,  Vladimir
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%J Electronic transactions on numerical analysis
%D 2008
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Varga,  Richard S.; Cvetković,  Ljiljana; Kostić,  Vladimir. Approximation of the minimal Geršgorin set of a square complex matrix. Electronic transactions on numerical analysis, Tome 30 (2008), pp. 398-405. http://geodesic.mathdoc.fr/item/ETNA_2008__30__a1/