Special involutions and bulky parabolic subgroups in finite Coxeter groups

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The conjugacy classes of so-called special involutions parameterize the constituents of the action of a finite Coxeter group on the cohomology of the complement of its complexified hyperplane arrangement. In this note we give a short intrinsic characterisation of special involutions in terms of so-called bulky parabolic subgroups.
6 pages

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Group Theory, 20F55

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http://salesiana.dossiersoluciones.com/handle/123456789/71399

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0406014
 http://arxiv.org/abs/math/0406014

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arXiv