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On the finiteness and uniqueness of certain 2-tame N-groups

Published online by Cambridge University Press:  20 January 2009

S. D. Scott
Affiliation:
Department of Mathematics, University of Auckland, Private Bag 92019, Auckland, New Zealand
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Abstract

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Unlike ring modules certain faithful N-groups are unique. The main theorem is that if N is a 2-tame ring-free near-ring where N/J(N) has DCCR, then all faithful 2-tame N-groups are finite and N-isomorphic. The finiteness of such an N-group follows easily from the fact it has a composition series. It is then shown that the length of a composition series depends only on N. This fact is used at key points in the proof. The situations where the N-group has or has not a minimal submodule require different analysis. The first case makes use of other interesting results and the second makes strong use of the inductive assumption.

Type
Research Article
Copyright
Copyright © Edinburgh Mathematical Society 1995

References

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