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Automorphisms of Metabelian Groups

Published online by Cambridge University Press:  20 November 2018

Athanassios I. Papistas
Athanassios I. Papistas*
Affiliation:
Department of Mathematics Aristotle University of Thessaloniki GR 540 06, Thessaloniki Greece, e-mail: apapist@ccf.auth.gr
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Abstract

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We investigate the problem of determining when $\text{IA}({{F}_{n}}({{\mathbf{A}}_{m}}\mathbf{A}))$ is finitely generated for all $n$ and $m$ , with $n\ge 2$ and $m\ne 1$ . If $m$ is a nonsquare free integer then $\text{IA}({{F}_{n}}({{\mathbf{A}}_{m}}\mathbf{A}))$ is not finitely generated for all $n$ and if $m$ square free integer then $\text{IA}({{F}_{n}}({{\mathbf{A}}_{m}}\mathbf{A}))$ is finitely generated for all $n$ , with $n\ne 3$ , and $\text{IA}({{F}_{3}}({{\mathbf{A}}_{m}}\mathbf{A}))$ is not finitely generated. In case $m$ is square free, Bachmuth and Mochizuki claimed in ([7], Problem 4) that $\text{TR}({{\mathbf{A}}_{m}}\mathbf{A})$ is 1 or 4. We correct their assertion by proving that $\text{TR}({{\mathbf{A}}_{m}}\mathbf{A})=\infty$ .

Keywords

20F28

Information

Type
Research Article
Information
Canadian Mathematical Bulletin , Volume 41 , Issue 1 , 01 March 1998 , pp. 98 - 104
Copyright
Copyright © Canadian Mathematical Society 1998

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