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A Putnam area inequality for thespectrum of n-tuples ofp-hyponormal operators

Published online by Cambridge University Press:  01 October 1999

B. P. Duggal
B. P. Duggal
Affiliation:
Department of Mathematics, University of Botswana, Private Bag 0022, Gaborone, Botswana (Southern Africa)
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Abstract

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We prove an $n$-tuple analogue of the Putnam area inequality for the spectrum of a single $p$-hyponormal operator.

Type
Research Article
Information
Glasgow Mathematical Journal , Volume 41 , Issue 3 , October 1999 , pp. 385 - 391
Copyright
1999 Glasgow Mathematical Journal Trust