2 papers
math.AC2024
An ADE correspondence for grade three perfect ideals
Lorenzo Guerrieri, Xianglong Ni, Jerzy Weyman
Using the theory of "higher structure maps" from generic rings for free resolutions of length three, we give a classification of grade 3 perfect ideals with small type and deviatio…
math.AC2023
Free resolutions constructed from bigradings on Lie algebras
Xianglong Ni, Jerzy Weyman
We construct two families of free resolutions that resolve the ideals of certain opposite Schubert varieties restricted to the big open cell. We conjecture that these examples have…