Tien Le

Given a parabolic subgroup W I of a Coxeter system ( W , S ) , the set of left cosets w W I , for I ⊆ S , w ∈ W , is well-studied. However, the set of double cosets I , J ⊆ S for I , J ⊆ S is a less studied object. I want to analyze the double cosets...