On the combinatorics of B×B-orbits on gr
✍
Yu Chen; Matthew Dyer
📂
Article
📅
2003
🏛
Elsevier Science
🌐
English
⚖ 169 KB
It is shown that there is an order isomorphism ϕ from the poset V of B × B-orbits on the wonderful compactification of a semi-simple adjoint group G with Weyl group W to an interval in reverse Chevalley-Bruhat order on a non-canonically associated Coxeter group W (in general neither finite nor affin