Operators and Matrices · Volume 8, Issue 4 A Radon-Nikodym type theorem for α-completely positive maps on groups 08-66 Pages 1163-1174 DOI 10.7153/oam-08-66 Downloads Short PDF Full PDF PNG Authors Maria Joiţa Keywords α-completely positive map on groups Radon-Nikodym theorem unitary representation on Krein spaces Subject classes 43A35 46C50 46L05