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math.RT2023
Linkage principle for small quantum groups
Cristian Vay
We consider small quantum groups with root systems of Cartan, super and modular type, among others. These are constructed as Drinfeld doubles of finite-dimensional Nichols algebras…
math.RT2023
Koszul duality for Coxeter groups
Simon Riche, Cristian Vay
We construct a "Koszul duality" equivalence relating the (diagrammatic) Hecke category attached to a Coxeter system and a given realization to the Hecke category attached to the sa…