J. Jeffries

activity

20122026

most citedMultiplicities of Classical Varieties

17 citations · 48 across the 20 of their papers we have counts for

collaborators

Showing 2026Show all

3 papers · 1 filter

math.AC2026

On an ideal membership problem

Melvin Hochster, Jack Jeffries, Nawaj KC +1

Suppose $f_{1}, \dots, f_{n + 1}$ are elements of a regular ring $R$ , where $n := dim R$ . The first author proved that $f_{1}^{n} \dots f_{n + 1}^{n} \in (f_{1}^{n + 1}, \dots, f_{n + 1}^{n + 1}) R$ ;…

math.AC2026

The variety of nilpotent matrices is $F$ -regular

Jack Jeffries, Vaibhav Pandey, Anurag K. Singh

We give an elementary proof that the coordinate ring of the variety of nilpotent matrices is $F$ -regular; over an infinite field $K$ , this ring also arises as the nullcone for the…

math.AC2026

Regularity is bounded on a quasi-excellent Noetherian scheme

Alessandro De Stefani, Jack Jeffries, Nawaj KC +1

A point of a scheme has an associated tangent cone, the spectrum of a standard graded algebra encoding the local singularity. Its homological complexity can be measured by its grad…

On an ideal membership problem

The variety of nilpotent matrices is F-regular

Regularity is bounded on a quasi-excellent Noetherian scheme

The variety of nilpotent matrices is $F$ -regular