Une Remarque sur les Systèmes de Racines
Journal of Lie theory, Tome 17 (2007) no. 3, pp. 597-603
We prove that, for any based root system, the closed cone generated by the positive roots is the disjoint union of the cones (1-w)(C+), for w in the Weyl group, where C+ is the open positive chamber.
Classification :
20F55
Mots-clés : Root systems, Weyl groups
Mots-clés : Root systems, Weyl groups
@article{JLT_2007_17_3_JLT_2007_17_3_a9,
author = {J.-L. Waldspurger},
title = {Une {Remarque} sur les {Syst\`emes} de {Racines}},
journal = {Journal of Lie theory},
pages = {597--603},
year = {2007},
volume = {17},
number = {3},
url = {http://geodesic.mathdoc.fr/item/JLT_2007_17_3_JLT_2007_17_3_a9/}
}
J.-L. Waldspurger. Une Remarque sur les Systèmes de Racines. Journal of Lie theory, Tome 17 (2007) no. 3, pp. 597-603. http://geodesic.mathdoc.fr/item/JLT_2007_17_3_JLT_2007_17_3_a9/