Billey-Type Formula for KL-Schubert Classes in Hyperbolic Cohomology
arXiv:2604.09416
Abstract
This paper studies the KL-Schubert classes defined by Kazhdan-Lusztig bases in -theory and hyperbolic cohomology of flag varieties. We first establish Poincaré dualities of these classes. We then focus on Grassmannians, and establish the Billey-type formula for KL-Schubert classes in hyperbolic cohomology.
16 pages