Nakayama automorphisms of double Ore extensions of Koszul regular algebras

Can Zhu, Fred Van Oystaeyen, Yinhuo Zhang

Let $A$ be a Koszul Artin-Schelter regular algebra and $\sigma$ an algebra homomorphism from $A$ to $M_{2\times 2}(A)$. We compute the Nakayama automorphisms of a trimmed double Ore ext…