A note on the von Neumann algebra underlying some universal compact quantum groups
arXiv:0907.3863
Abstract
We show that for F an invertible 2 by 2 matrix, the von Neumann algebra associated to the universal quantum group A_u(F) is a free Araki-Woods factor.
5 pages; added a reference and shortened the proof of Lemma 2.4 with the aid of it