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A note on Weyl groups and crystallographic root lattices
Published 2 Sep 2017 in math.GR | (1709.00603v3)
Abstract: We follow the dual approach to Coxeter systems and show for Weyl groups a criterium which decides whether a set of reflections is generating the group depending on the root and the coroot lattice. Further we study special generating sets involving a parabolic subgroup and show that they are very tame.
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