Soergel calculus and Schubert calculus
arXiv:1502.04914
Abstract
We reduce some key calculations of compositions of morphisms between Soergel bimodules ("Soergel calculus") to calculations in the nil Hecke ring ("Schubert calculus"). This formula has several applications in modular representation theory.
23 pages, many TikZ pictures, best viewed in colour and pdf. v2: very minor changes