The problem of freeness for Euler monoids and Möbius groups
type: Item
instance of: scholarly article
title: The problem of freeness for Euler monoids and Möbius groups
zbMATH Open document ID: 0980.20038
DOI: 10.1007/PL00006024
author: Aleksander Grytczuk
author: M. Wójtowicz
published in: Semigroup Forum
publication date: 2002-02-28T00:00:00Z
review text: The authors extend the set of those rational numbers \(\mu\in(-2,2)\) for which the group\break \(\Bigl\langle\left(\begin{smallmatrix} 1 &\mu\\ 0 &1\end{smallmatrix}\right),\left(\begin{smallmatrix} 1 &0\\ \mu &1\end{smallmatrix}\right)\Bigr\rangle\) is not free.
reviewed by: Gerhard Rosenberger
Mathematics Subject Classification ID: 20H10
Mathematics Subject Classification ID: 20M05
Mathematics Subject Classification ID: 20F05
Mathematics Subject Classification ID: 20M20
zbMATH DE Number: 1523493
zbMATH Keywords: Euler monoids
zbMATH Keywords: free groups
zbMATH Keywords: Möbius groups
MaRDI profile type: Publication
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description: scientific article; zbMATH DE number 1523493