2 papers
math.OA2005
An Explicit Duality for Finite Groups
Robert A. Cohen, Martin E. Walter
Using a ``3 by 3 matrix trick'' we previously showed that multiplication in a C*-algebra A, an algebraic structure, is determined by the geometry of the C*-algebra of the 3 by 3 ma…
math.OA1996
Fourier-Stieltjes algebras of locally compact groupoids
Arlan Ramsay, Martin E. Walter
This paper gives a first step toward extending the theory of Fourier-Stieltjes algebras from groups to groupoids. If G is a locally compact (second countable) groupoid, we show tha…