Xiao-Yan Yang

activity

20172023

most citedCosupport for triangulated categories

1 citations · 1 across the 11 of their papers we have counts for

collaborators

Showing 2021Show all

3 papers · 1 filter

math.AC2021

Cosupport of artinian modules

Xiaoyan Yang

Let $(R, m)$ be a commutative local noetherian ring. For an artinian $R$ -module $M$ , we show the equality $cosupp_{R} M = Cosupp_{R} M$ using the semi-discret…

math.AC2021

Coartinianess of local homology modules for ideals of small dimension

Jingwen Shen, Pinger Zhang, Xiaoyan Yang

Let $a$ be an ideal of a commutative noetherian ring $R$ and $M$ an $R$ -module with Cosupport in $V (a)$ . We show that $M$ is $a$ -coartinia…

math.AC2021

Modules cofinite with respect to ideals of small dimensions

Xiaoyan Yang, Jingwen Shen

Let $a$ be an ideal of a noetherian (not necessarily local) ring $R$ and $M$ an $R$ -module with $Supp_{R} M \subseteq V (a)$ . We show that if $\ma…