2 papers
math.RT2021
Hecke category actions via Smith-Treumann theory
Joshua Ciappara
Let be a simply connected semisimple algebraic group over a field of characteristic greater than the Coxeter number. We construct a monoidal action of the diagrammatic…
math.RT2020
Lectures on the Geometry and Modular Representation Theory of Algebraic Groups
Joshua Ciappara, Geordie Williamson
These notes provide a concise introduction to the representation theory of reductive algebraic groups in positive characteristic, with an emphasis on Lusztig's character formula an…