3 papers
math.OA2012
Idempotent states on locally compact groups and quantum groups
Pekka Salmi
This is a short survey on idempotent states on locally compact groups and locally compact quantum groups. The central topic is the relationship between idempotent states, subgroups…
math.OA2012
Contractive idempotents on locally compact quantum groups
Matthias Neufang, Pekka Salmi, Adam Skalski +1
A general form of contractive idempotent functionals on coamenable locally compact quantum groups is obtained, generalising the result of Greenleaf on contractive measures on local…
math.OA2011
Idempotent states on locally compact quantum groups
Pekka Salmi, Adam Skalski
Idempotent states on a unimodular coamenable locally compact quantum group A are shown to be in one-to-one correspondence with right invariant expected C*-subalgebras of A. Haar id…