Xiaoyan Yang

collaborators

2 papers

math.AC2026

Grade and Cohen-Macaulayness for DG-modules

Yuancheng Ning, Xiaoyan Yang

We establish an inequality relating the projective dimension of a DG-module in $D_{f}^{b} (A)$ to its grade and introduce the concept of perfect DG-modules as…

math.AC2023

The local-global principle for the artinianness dimensions

Jingwen Shen, Xiaoyan Yang

Let $R$ be a commutative noetherian ring and $a$ an ideal of $R$ . The goal of this paper is to establish the local-global principle for the artinianness dimension $r_{\m…