Dec 2013

K-theory and limit-of-discrete-series for the universal cover of SL_2(R)

We have put rough draft of this joint paper (with Jacek Brodzki, Roger Plymen and Nick Wright) on the Manchester archive at:

http://eprints.ma.man.ac.uk/2082

We examine the unitary principal series of the universal cover of SL2(R) which admits a limit-of-discrete-series giving to an explicit generator (a Dirac class) for the 1-dimensional K-theory of the reduced C-algebra.