Using the recently developed theory of Herz-Schur multipliers of a C*-dynamical system, we prove equality of the Haagerup constants for a C*-algebra and its crossed product by an amenable action.
机构:
Univ Carlos III Madrid, Dept Math, E-28911 Leganes, Madrid, Spain
UAM, ICMAT, Madrid 28049, SpainUniv Carlos III Madrid, Dept Math, E-28911 Leganes, Madrid, Spain
机构:
Qufu Normal Univ, Sch Math Sci, Qufu 273165, Shandong, Peoples R China
Nankai Univ, Chern Inst Math, Tianjin 300071, Peoples R ChinaQufu Normal Univ, Sch Math Sci, Qufu 273165, Shandong, Peoples R China