On Geršgorin-type problems and ovals of cassini (Q1292260)
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scientific article; zbMATH DE number 1306000
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On Geršgorin-type problems and ovals of cassini |
scientific article; zbMATH DE number 1306000 |
Statements
On Geršgorin-type problems and ovals of cassini (English)
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21 June 1999
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The authors consider the class of matrices with fixed Gershgorin discs. A precise description of the union of the spectra of all these matrices is given, in terms of the corresponding Cassini ovals.
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localization of eigenvalues
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Cassini ovals
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Gershgorin discs
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0.9141642
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0.85805273
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0.84425783
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0.8438995
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0.84189564
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0.8340688
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0.8286282
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