2 citations · 2 across the 2 of their papers we have counts for
4 papers
Some remarks on free products of rigid -2-categories
Matthias Valvekens
In this informal expository note, we present a universal, formulaic construction of the free product of rigid -2-categories. This construction allows for a straightforward, pu…
-Betti numbers of -tensor categories associated with totally disconnected groups
Matthias Valvekens
We prove that the -Betti numbers of a rigid -tensor category vanish in the presence of an almost-normal subcategory with vanishing -Betti numbers, generalising a res…
Property (T) discrete quantum groups and subfactors with triangle presentations
Stefaan Vaes, Matthias Valvekens
Kazhdan's property (T) has been studied for several discrete group-like structures, including standard invariants of Jones' subfactors and discrete quantum groups. We prove a Zuk-t…
L^2-Betti numbers of rigid C*-tensor categories and discrete quantum groups
David Kyed, Sven Raum, Stefaan Vaes +1
We compute the -Betti numbers of the free -tensor categories, which are the representation categories of the universal unitary quantum groups . We show that the $…