3 papers
math.AC2026
Gorenstein Special Fiber Rings of Ladder Determinantal Modules
Louiza Fouli, Kuei-Nuan Lin, Haydee Lindo +1
A ladder determinantal module is an arbitrary direct sum of ideals of maximal minors of a generic ladder matrix. In this article, we give necessary and sufficient conditions for th…
math.AC2025
Algebraic invariants of the special fiber ring of ladder determinantal modules
Alessandra Costantini, Louiza Fouli, Kriti Goel +4
We provide explicit formulas for key invariants of special fiber rings of ladder determinantal modules, that is, modules that are direct sums of ideals of maximal minors of a ladde…
math.AG2023
On Cohen--Macaulay modules over the Weyl algebra
Kuei-Nuan Lin, Jen-Chieh Hsiao
We propose a definition of Cohen--Macaulay modules over the Weyl algebra and give a sufficient condition for a GKZ -hypergeometric -module to be Cohen--Macaulay.