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Title: Convexity of the Krein space tracial numerical range and Morse theory
Authors: Nakazato, Hiroshi 
Bebiano, Natália 
Providência, João da 
Keywords: Numerical range; Indefinite inner product; J-Hermitian matrix; Non-interlacing
Issue Date: 2009
Publisher: Centro de Matemática da Universidade de Coimbra
Citation: Pré-Publicações DMUC. 09-31 (2009)
Serial title, monograph or event: Pré-Publicações DMUC
Issue: 09-31
Place of publication or event: Coimbra
Abstract: In this paper we present a Krein space convexity theorem on the tracial-numerical range of a matrix. This theorem is the analogue of Westwick's theorem. The proof is an application of Morse theory.
Rights: openAccess
Appears in Collections:FCTUC Física - Vários
FCTUC Matemática - Vários

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