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Roots in 2-spherical apartments

par Gutt, Jean ;Muhlherr, Bernhard
Référence Advances in geometry, 12, 2, page (229-238)
Publication Publié, 2012-03

Article révisé par les pairs

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Résumé :

In 1977 Tits proved that the 2-interior of a root of a 2-spherical Coxeter complex is connected. In 2002 Tits and Weiss gave a more conceptual proof of this fact in the spherical case. In this paper we modify their approach in order to cover the 2-spherical case. © de Gruyter 2012.