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Quartic Algebras

Published online by Cambridge University Press:  20 November 2018

Carla Farsi  and
Neil Watling
Carla Farsi
Affiliation:
Department of Mathematics, University of Toronto, Toronto, Ontario, M5S 1A1
Neil Watling
Affiliation:
Department of Mathematics, SUNY at Buffalo, Buffalo, New York 14214, U.S.A.
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Abstract

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In this paper we study the fixed point algebra of the automorphism of the rotation algebra , θ = p/q with p, q coprime positive integers, given by u → v-1, v → u. We give a general characterization of the fixed point algebra, determine its K-theory and consider the related crossed-product algebra ⋊Ƭ Z4.

Keywords

46L4046L0546L5546L80
Type
Research Article
Information
Canadian Journal of Mathematics , Volume 44 , Issue 6 , 01 December 1992 , pp. 1167 - 1191
Copyright
Copyright © Canadian Mathematical Society 1992

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