Strong Connections and Chern-Connes Pairing in the Hopf-Galois Theory

L. Dabrowski, H. Grosse, P. M. Hajac

We reformulate the concept of connection on a Hopf-Galois extension $B\subseteq P$ in order to apply it in computing the Chern-Connes pairing between the cyclic cohomology $HC^{2n}…