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math.AC2022
The Improved New Intersection Theorem revisited
Lars Winther Christensen, Luigi Ferraro
We prove a generalized version of Evans and Griffith's Improved New Intersection Theorem: Let I be an ideal in a local ring R. If a finite free R-complex, concentrated in nonnegati…
math.AC2022
The Tor algebra of trimmings of Gorenstein ideals
Luigi Ferraro, Alexis Hardesty
Let be a regular local ring of dimension 3. Let be a Gorenstein ideal of of grade 3. Buchsbaum and Eisenbud proved that there is a skew-symmetric m…