A unitary analogue of Kato's theorem on variation of discrete spectra

Bhatia, Rajendra ; Sinha, Kalyan B. (1988) A unitary analogue of Kato's theorem on variation of discrete spectra Letters in Mathematical Physics, 15 (3). pp. 201-204. ISSN 0377-9017

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Official URL: http://www.springerlink.com/index/x44g560541478754...

Related URL: http://dx.doi.org/10.1007/BF00398588

Abstract

We obtain an estimate of the distance between extended enumerations of the discrete eigenvalues of two unitary operators whose difference is compact.

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ID Code:2558
Deposited On:08 Oct 2010 06:57
Last Modified:17 May 2011 05:09

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