Convexity of the Krein space tracial numerical range and Morse theory
| Autor: | Nakazato, Hiroshi, Bebiano, Natália, Providência, João da |
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| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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