2 papers
math.OA2025
Finite index quantum subgroups of discrete quantum groups
Mao Hoshino
We show that finite index quantum subgroups of a discrete quantum group are induced from finite index quantum subgroups of the unimodularization. As an application, we classify all…
math.OA2024
A note on quantum subgroups of free quantum groups
Mao Hoshino, Kan Kitamura
In this short note, quantum subgroups in finite free products of the Pontryagin duals of free unitary quantum groups are classified. They correspond to pairs of a subgroup and…