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Products of abelian hopfian groups

Published online by Cambridge University Press:  09 April 2009

Gilbert Baumslag
Affiliation:
Graduate CenterThe City University of New York
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Let ℜk be the variety of all nilpotent groups of class at most k. The purpose of this note is to prove the following Theorem 1. Letbe a variety of groups containing ℜ2, let A and B be torsion-free abelian hopfian groups and let P be the free-product2 of A and B. If P is residually torsion-free nilpotent, then P is hopfian.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1968

References

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