Bott-Samelson varieties and Poisson Ore extensions

Balazs Elek, Jiang-Hua Lu

Let $G$ be a connected complex semi-simple Lie group, and let $Z_{\mathbf{u}}$ be an $n$-dimensional Bott-Samelson variety of $G$, where $\mathbf{u}$ is any sequence of simple reflections…