2 papers
math.AC2026
Local cohomology modules with nonclosed support
Bhargav Bhatt, Linquan Ma
We construct noetherian rings admitting local cohomology modules with nonclosed support, or equivalently with infinitely many minimal primes; this answers a question of Huneke--Lyu…
math.AC2025
Ulrich modules over local rings of dimension two
Srikanth B. Iyengar, Linquan Ma, Mark E. Walker
It is proved that Ulrich modules exist for a large class of local rings of dimension two. This complements earlier work of the authors and Ziquan Zhuang that described complete int…