The Gerschgorin discs under unitary similarity

• Autorzy: Anna Zalewska-Mitura , Jaroslav Zemánek
• Języki publikacji: EN

Abstrakty

EN

The intersection of the Gerschgorin regions over the unitary similarity orbit of a given matrix is studied. It reduces to the spectrum in some cases: for instance, if the matrix satisfies a quadratic equation, and also for matrices having "large" singular values or diagonal entries. This leads to a number of open questions.

• Wydawca: Institute of Mathematics Polish Academy of Sciences
• Czasopismo: Banach Center Publications
• Rocznik: 1997
• Tom: 38
• Numer: 1
• Strony: 427-441

Daty

wydano

1997

Twórcy

autor

Anna Zalewska-Mitura

• Institute of Mathematics, Polish Academy of Sciences, P.O. Box 137, 00-950 Warszawa, Poland

autor

Jaroslav Zemánek

• Institute of Mathematics, Polish Academy of Sciences, P.O. Box 137, 00-950 Warszawa, Poland

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