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New Zealand Mathematics Colloquium 1999
July 6-9, 1999
Department of Mathematics and Statistics, University of Canterbury
Christchurch, New Zealand

Organizers
Doris Barnard, Therese Boustead, Chris Price, Bruce Robson, Gunter Steinke, Graeme Wake, Allan Willms

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The number of intermediate rings in some ring extensions
by
Ali Jaballah
Depatment of Mathematics, The University of Waikato, Hamilton, New Zealand

Let R be a subring of a ring S. We give necessary and sufficient conditions for the set of intermediate rings, i.e. rings T between R and S, to be finite, then we give a way to calculate the number of these rings.

Date received: June 18, 1999

Copyright © 1999 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # cacc-51.