3 problems

Let $Q_{\operatorname{/}}$ be the reduced quiver associated with a well-split configuration, and let $\Sigma$ be a polygon bounded by arrows of $Q_{\operatorname{/}}$. Herzog's pol…

Non-commutative crepant resolution conjecture. The algebra $\Lambda^1(Q)$ is a 2-dimensional non-commutative crepant resolution of its center, the ring of functions on…

Let $Q$ be the quiver associated with a noncommutative crepant resolution $A=\mathbb{C}\{Q,W\}$ of the threefold setup, let $C$ be the flopping curve, and let $\Phi(0,1)$ be its di…