Geodesic
An Explicit Criterion for the Convexity of Quaternionic Numerical Range
Canadian mathematical bulletin, Tome 41 (1998) no. 1, pp. 105-108

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DOI

Quaternionic numerical range is not always a convex set. In this note, an explicit criterion is given for the convexity of quaternionic numerical range.
DOI : 10.4153/CMB-1998-016-4
Mots-clés : 15A33, 15A60 
So, Wasin. An Explicit Criterion for the Convexity of Quaternionic Numerical Range. Canadian mathematical bulletin, Tome 41 (1998) no. 1, pp. 105-108. doi: 10.4153/CMB-1998-016-4
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     author = {So, Wasin},
     title = {An {Explicit} {Criterion} for the {Convexity} of {Quaternionic} {Numerical} {Range}},
     journal = {Canadian mathematical bulletin},
     pages = {105--108},
     year = {1998},
     volume = {41},
     number = {1},
     doi = {10.4153/CMB-1998-016-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1998-016-4/}
}
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