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Some symmetric varieties of groups

Published online by Cambridge University Press:  17 April 2009

Narain Gupta
Affiliation:
University of Manitoba, Winnipeg, Canada
Frank Levin
Affiliation:
Rutgers, The State University, New Brunswick, New Jersey, USA.
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Abstract

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Let (n, σ, d) denote the variety of all groups defined by the left-normed commutator identity [x1, …, xn] = [x, …, x]d, where σ is a non-identity permutation of {1, …, n}, and d is an integer, possibly negative. It is shown that (n, σ, d) is nilpotent-by-nilpotent if σ ≠ (1, 2), abelian by nilpotent if n > 2, nσ ≠ n, and nilpotent of class at most n + 1 if {1, 2} ≠ {1σ, 2σ}. This improves on a result of E.B. Kikodze that (n, σ, 1) is locally soluble and if {1, 2} ≠ {1σ, 2σ} is locally nilpotent.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1970

References

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