Gersgorin variations I: on a theme of Pu
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Alan J. Hoffman
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Article
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2000
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Elsevier Science
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English
β 43 KB
We unify and extend various "additive" sufficient conditions of Pupkov and of Solov'ev for the nonsingularity of a complex matrix. This paper is intended to be the first in a sequcnce of "variations" on theorems of the Gersgorin genre. The whole sequence is dedicated to the memory of Olga Taussky-To