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math.AC2024
Ideals preserved by linear changes of coordinates in positive characteristic
Bjørn Cattell-Ravdal, Erin Delargy, Akash Ganguly +4
We consider the polynomial ring in finitely many variables over an algebraically closed field of positive characteristic, and initiate the systematic study of ideals preserved by t…
math.AC2024
On virtual resolutions of points in a product of projective spaces
Isidora Bailly-Hall, Christine Berkesch, Karina Dovgodko +3
For finite sets of points in , we produce short virtual resolutions, as introduced by Berkesch--Erman--Smith. We first intersect with a sufficient…