Journal of Operator Theory

Volume 6, Issue 1, Summer 1981 pp. 103-111.

On the smoothness of sphere extensions

Authors: R. G. Douglas (1) and Dan Voiculescu (2)
Author institution:(1) Department of Mathematics, State University of New York, Stony Brook, New York 11794, U.S.A.
(2) Department of Mathematics, INCREST Bdul Păcii nr. 220, 79622 Bucharest, Romania.

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