Geodesic
The Numerical Range of 2-Dimensional Krein Space Operators
Canadian mathematical bulletin, Tome 51 (2008) no. 1, pp. 86-99

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DOI

The tracial numerical range of operators on a 2-dimensional Krein space is investigated. Results in the vein of those obtained in the context of Hilbert spaces are obtained.
DOI : 10.4153/CMB-2008-011-1
Mots-clés : 15A60, 15A63, 15A45, numerical range, generalized numerical range, indefinite inner product space 
Nakazato, Hiroshi; Bebiano, Natália; Providência, João da. The Numerical Range of 2-Dimensional Krein Space Operators. Canadian mathematical bulletin, Tome 51 (2008) no. 1, pp. 86-99. doi: 10.4153/CMB-2008-011-1
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     title = {The {Numerical} {Range} of {2-Dimensional} {Krein} {Space} {Operators}},
     journal = {Canadian mathematical bulletin},
     pages = {86--99},
     year = {2008},
     volume = {51},
     number = {1},
     doi = {10.4153/CMB-2008-011-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2008-011-1/}
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