2 papers
math.QA1999
U_{q}(sl_{2}) at fourth root of unity
D. Kastler, T. Krajewski, P. Seibt +1
In this paper, we study finite dimensional quotients of the Hopf algebra U_{q}(sl_{2}) at fourth root of unity. We give explicitly all the corresponding automorphisms, real forms a…
math-ph1999
Good spectral triples, associated Lie groups of Campbell-Baker-Hausdorff type and unimodularity
J. Marion, K. Valavane
The notion of good spectral triple is initiated. We prove firstly that any regular spectral triple may be embedded in a good spectral triple, so that, in non-commutative geometry,…