Shin-ichiro Iai

collaborators

2 papers

math.AC2023

Rings with q-torsionfree canonical modules

Naoki Endo, Laura Ghezzi, Shiro Goto +5

Let A be a Noetherian local ring with canonical module K. We characterize A when K is a torsionless, reflexive, or q-torsionfree module. If A is a Cohen-Macaulay ring, H.-B. Foxby…

math.AC2021

When are the rings $I : I$ Gorenstein?

Naoki Endo, Shiro Goto, Shin-ichiro Iai +1

Let $I (\neq = A)$ be an ideal of a $d$ -dimensional Noetherian local ring $A$ with $ht_{A} I \geq 2$ , containing a non-zerodivisor. The problem of when the ring $I:I=\oper…

Rings with q-torsionfree canonical modules

When are the rings I:I Gorenstein?

When are the rings $I : I$ Gorenstein?