Geodesic
A Representation of G-invariant norms for Eaton Triple
Journal of convex analysis, Tome 18 (2011) no. 1, pp. 59-65 Cet article a éte moissonné depuis la source Heldermann Verlag

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We obtain a representation of unitarily invariant norm in terms of Ky Fan norms [see R. Bhatia, Matrix Analysis, Springer, New York et al., 1997, p. 35]. Indeed we obtain a more general result in the context of Eaton triple with reduced triple. Examples are given.
Classification : 15A60, 65F35
Mots-clés : Eaton triple, G-invariant norms, symmetric gauge functions, Ky Fan norms, finite reflection groups 
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     author = {P. Niemiec and T.-Y. Tam},
     title = {A {Representation} of {G-invariant} norms for {Eaton} {Triple}},
     journal = {Journal of convex analysis},
     pages = {59--65},
     year = {2011},
     volume = {18},
     number = {1},
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}
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P. Niemiec; T.-Y. Tam. A Representation of G-invariant norms for Eaton Triple. Journal of convex analysis, Tome 18 (2011) no. 1, pp. 59-65. http://geodesic.mathdoc.fr/item/JCA_2011_18_1_JCA_2011_18_1_a2/