Let X be compact Hausdorff, and φ : X → X a continuous surjection. Let A be the semicrossed product algebra corresponding to the relation fU = Uf ◦φ. Then the C∗-envelope of A is the crossed product… (More)

In this paper, we study the semicrossed product of a finite dimensional C *-algebra for two types of Z 2 +-actions, and identify them with matrix algebras of analytic functions in two variables. We… (More)

OBJECTIVE
This study describes the development of the self-administered Eating Pattern Assessment Tool (EPAT), which is designed to assess dietary fat and cholesterol intake and aid patients and… (More)

The literature for the last seven years was reviewed in terms of the effect of the various fibric acid derivatives on blood lipid and lipoprotein levels. The criteria for review resulted in a greater… (More)

We prove a spectral theorem for bimodules in the context of graph C∗-algebras. A bimodule over a suitable abelian algebra is determined by its spectrum (i.e., its groupoid partial order) iff it is… (More)

We obtain a characterization in terms of dynamical systems of those r-discrete groupoids for which the groupoid C∗algebra is approximately finite-dimensional (AF). These ideas are then used to… (More)

In this paper we give criteria for an ideal J of a TAF algebra A to be meet irreducible. We show that J is meet irreducible if and only if the C∗-envelope of A/J is primitive. In that case, A/J… (More)

In this paper we study the nest representations ρ : A −→ AlgN of a strongly maximal TAF algebra A, whose ranges contain non-zero compact operators. We introduce a particular class of such… (More)

Received by the editors November 6, 1999; revised March 14, 2000. A. Hopenwasser was supported in part by an EPSRC visiting fellowship to Lancaster University. Justin. R. Peters was partially… (More)