OPERATORS WITH NUMERICAL RANGE IN A GIVEN CLOSED HALF PLANE

OPERATORS WITH NUMERICAL RANGE IN A GIVEN CLOSED HALF PLANE

Various characterizations are given of real and complex Hubert space operators with the numerical range in a given closed half plane.

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Veröffentlicht in:Taiwanese journal of mathematics 2007-06, Vol.11 (2), p.471-481
Hauptverfasser: Cheung, Wai-Shun, 張偉信, Li, Chi-Kwong, 李志光, Rodman, Leiba
Format: Artikel
Sprache:eng
Schlagworte:
Eigenvalues
Grants
Half planes
Hilbert spaces
Integers
Linear algebra
Linear transformations
Mathematical vectors
Matrices
Zero
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Beschreibung
Zusammenfassung:Various characterizations are given of real and complex Hubert space operators with the numerical range in a given closed half plane.
ISSN:1027-5487
2224-6851
DOI:10.11650/twjm/1500404702