Rigidity of Bott-Samelson-Demazure-Hansen variety for $PSp(2n,\mathbb{C})$

B. Narasimha Chary, S. Senthamarai Kannan

Let $G=PSp(2n,\mathbb{C})(n\ge 3)$ and $B$ be a Borel subgroup of $G$ containing a maximal torus $T$ of $G$. Let $w$ be an element of the Weyl group $W$ and $X(w)$ be the Schubert…