Journal of Operator Theory
Volume 3, Issue 2, Spring 1980 pp. 271-274.
The Ext groups of the C*-algebras associated with irrational rotationsAuthors: Sorin Popa (1) and Marc A. Rieffel
Author institution: (1) Department of Mathematics National Institute for Scientific and Technical Creation Bd. PÄcii 220, 77538 Bucharest, Romania
(2) Department of Mathematics University of California Berkeley, Cal. 94720 U.S.A.
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