Hideto Asashiba

Derived equivalence classification of twisted and generalized multifold extensions of affine type

Let $B$ be a piecewise hereditary algebra of affine type over an algebraically closed field. In this paper we give a derived and stable equivalence classification of twisted multifold extensions of $B$. The types $\widetilde D$ and $\widetilde E$ are already covered by the classification for tree type. We therefore con...