Rieffel projection — 1 articles found.

The Rieffel Projection Via Groupoids

C. R. Math. Rep. Acad. Sci. Canada Vol. 40 (2) 2018, pp. 55-60
Vol.40 (2) 2018
George A. Elliott; Dickson Wong Details
(Received: 2018-05-05 , Revised: 2018-05-05 )
(Received: 2018-05-05 , Revised: 2018-05-05 )

George A. Elliott,Department of Mathematics, University of Toronto, Toronto, Canada M5S 2E4; e-mail: elliott@math.toronto.edu

Dickson Wong,Department of Mathematics, University of Toronto, Toronto, Canada M5S 2E4; e-mail: dickson.wong@mail.utoronto.ca

Abstract/Résumé:

An elementary groupoid construction is shown to underlie Rieffel’s Hilbert module construction of a non-trivial projection in the irrational rotation C*-algebra.

Une construction élémentaire de groupoïde se révèle à la base de la construction de Rieffel à module de Hilbert d’un projecteur non-trivial dans la C*-algèbre d’une rotation irrationnelle.

Keywords: Irrational rotation algebra, Rieffel projection, groupoid construction

AMS Subject Classification: General theory of $C^*$-algebras, K-theory and operator algebras -including cyclic theory, Noncommutative topology 46L05, 46L80, 46L85

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