Skew divided difference operators in the Nichols algebra associated to a finite Coxeter group

Christoph Bärligea

Let $(W,S)$ be a finite Coxeter system with root system $R$ and with set of positive roots $R^{+}$. For $\alpha \in R$, $v,w\in W$, we denote by ${\partial }_{\alpha }$, ${\partial }_w$ and $\partial_{w…