TY - JOUR AB - We first give an overview of the basic theory for discrete unital twisted C*-dynamical systems and their covariant representations on Hilbert C*-modules. After introducing the notion of equivariant representations of such systems and their product with covariant representations, we prove a kind of Fell absorption principle saying that the product of an induced regular equivariant representation with a covariant faithful representation is weakly equivalent to an induced regular covariant representation. This principle is the key to our main result, namely that a certain property, formally weaker than Exel’s approximation property, ensures that the system is regular, i.e., the associated full and reduced C*-crossed products are canonically isomorphic. AU - Bédos, Erik AU - Conti, Roberto DA - 2012 LA - eng IS - Münster Journal of Mathematics M2 - 183 PY - 2012 SP - 183-208 T2 - Münster Journal of Mathematics TI - On discrete twisted C*-dynamical systems, Hilbert C*-modules and regularity UR - https://nbn-resolving.org/urn:nbn:de:hbz:6-88399587577 Y2 - 2024-11-22T06:42:04 ER -