Algebra and Combinatorics

 

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Author(s)
Hiroshi Nakazato; João Providência; Natalia Bebiano;

Title
Convexity of the Krein space tracial numerical range and Morse theory

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.

Preprint series
Pré-publicações do Departamento de Matemática da Universidade de Coimbra

Issue
09-31

Year
2009

 
     
 

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