Automorphism group of a Bott-Samelson-Demazure-Hansen variety

B. Narasimha Chary, S. Senthamarai Kannan, A. J. Parameswaran

Let $G$ be a simple, adjoint, algebraic group over the field of complex numbers, $B$ be a Borel subgroup of $G$ containing a maximal torus $T$ of $G$, $w$ be an element of the Weyl…