2 papers
math.AC2019
Cohomological dimensions of specialization-closed subsets and subcategories of modules
Hiroki Matsui, Tran Tuan Nam, Ryo Takahashi +2
Let R be a commutative noetherian ring. In this paper, we study specialization-closed subsets of Spec R. More precisely, we first characterize the specialization-closed subsets in…
math.AC2016
Formal local homology
Tran Tuan Nam
We introduce a concept of formal local homology modules which is in some sense dual to P. Schenzel's concept of formal local cohomology modules. The dual theorem and the non-vanish…