Deformations of Smooth Complete Toric Varieties: Obstructions and the Cup Product

Nathan Ilten, Charles Turo

Let $X$ be a complete $\mathbb{Q}$-factorial toric variety. We explicitly describe the space $H^2(X,T_X)$ and the cup product map $H^1(X,T_X)\times H^1(X,T_X)\to H^2(X,T_X)$ in com…