On the quantum 'ax+b'group
  The more detailed description of the quantum 'ax+b' group of Baaj and Skandalis is presented. In particular we give generators and present formulae for action of the comultiplication on them; it is also shown that this group is a quantization of a Poisson-Lie structure on a classical 'ax+b' group. 
Piotr Stachura
math.QA math-ph math.MP