AG – Séminaire dématérialisé : Martina Lanini ( Univ. Roma Tor Vergata ) : Singularities of Schubert varieties within a right cell
We describe an algorithm which takes as input any pair of permutations and gives as output two permutations lying in the same Kazhdan-Lusztig right cell. There is an isomorphism between the Richardson varieties corresponding to the two pairs of permutations