Convexity of the Krein space tracial numerical range and Morse theory

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.

Detalhes bibliográficos
Autor principal: Nakazato, Hiroshi (author)
Outros Autores: Bebiano, Natália (author), Providência, João da (author)
Formato: other
Idioma:eng
Publicado em: 2009
Assuntos:
Texto completo:http://hdl.handle.net/10316/13648
País:Portugal
Oai:oai:estudogeral.sib.uc.pt:10316/13648