Quantum 4-sphere: the infinitesimal approach
Volume 61 / 2003
Banach Center Publications 61 (2003), 11-20
MSC: 58B32, 53D17, 20G42.
DOI: 10.4064/bc61-0-1
Abstract
We describe how the constructions of quantum homogeneous spaces using infinitesimal invariance and quantum coisotropic subgroups are related. As an example we recover the quantum $4$-sphere of [2] through infinitesimal invariance with respect to ${\cal U}_q(SU(2))$.