Title of article
J-orthostochastic matrices of size 3 × 3 and numerical ranges of Krein space operators Original Research Article
Author/Authors
Hiroshi Nakazato، نويسنده , , Nat?lia Bebiano، نويسنده , , Jo?o da Providência، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
22
From page
211
To page
232
Abstract
A result of Au-Yeung and Poon on 3 × 3 orthostochastic matrices is extended to analogous operators arising in the context of indefinite inner product spaces. This result is used to study the numerical range of certain operators on a three-dimensional Krein space. In particular, the convexity and the boundary of the set are investigated.
Keywords
J , J -orthostochastic matrix , C-tracial range , Krein space
Journal title
Linear Algebra and its Applications
Serial Year
2005
Journal title
Linear Algebra and its Applications
Record number
824941
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