Schubert varieties and finite free resolutions of length three
arXiv:2005.01253 · doi:10.1090/proc/15347
Abstract
In this paper we describe the relationship between the finite free resolutions of perfect ideals in split format (for Dynkin formats) and certain intersections of opposite Schubert varieties with the big cell for homogeneous spaces where is a maximal parabolic subgroup.
12 pages; Dedicated to Laurent Gruson with thanks for his guidance and friendship