11 citations · 20 across the 6 of their papers we have counts for
7 papers
Generalized Knörrer's Periodicity Theorem
Ji-Wei He, Xin-Chao Ma, Yu Ye
Let be a noetherian Koszul Artin-Schelter regular algebra, and let be a central regular element of . The quotient algebra is usually called a (noncommutat…
Derived Picard groups of homologically smooth Koszul DG algebras
Xuefeng Mao, Yinuo Yang, Jiwei He
In this paper, we show that the derived Picard group of a homologically smooth Koszul connected cochain DG algebra is isomorphic to the opposite group of the derived Picard group o…
Local cohomology associated to the radical of a group action on a noetherian algebra
Jiwei He, Yinhuo Zhang
An arbitrary group action on an algebra results in an ideal of . This ideal fits into the classical radical theory, and will be called the radi…
Cohen-Macaulay invariant subalgebras of Hopf dense Galois extensions
Jiwei He, Yinhuo Zhang
Let be a semisimple Hopf algebra, and let be a noetherian left -module algebra. If is a right -dense Galois extension, then the invariant subalgebra w…
Graded 3-Calabi-Yau algebras as Ore extensions of 2-Calabi-Yau algebras
Jiwei He, Fred Van Oystaeyen, Yinhuo Zhang
We study a class of graded algebras obtained from Ore extensions of graded Calabi-Yau algebras of dimension 2. It is proved that these algebras are graded Calabi-Yau and graded coh…
Deformations of Koszul Artin-Schelter Gorenstein algebras
Ji-Wei He, Fred van Oystaeyen, Yinhuo Zhang
We compute the Nakayama automorphism of a PBW-deformation of a Koszul Artin-Schelter Gorenstein algebra of finite global dimension, and give a criterion for an augmented PBW-deform…