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math.RT2026
Monoidal Jantzen filtrations
Ryo Fujita, David Hernandez
We introduce a monoidal analogue of Jantzen filtrations in the framework of monoidal abelian categories with generic braidings. It leads to a deformation of the multiplication of t…
math.RT2025
Representations and characters of quantum affine algebras at the crossroads between cluster categorification and quantum integrable models
David Hernandez
In this lecture, we survey a number of recent results and developments regarding the representation theory of infinite-dimensional quantum groups (quantum affine algebras and relat…
math.RT2025
Symmetries of Grothendieck rings in representation theory
David Hernandez
This is a written version of the invited lecture at the 9th European Congress of Mathematics in July 2024 in Sevilla. We review certain new symmetries of Grothendieck rings that ha…