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math.GR2018
Metabelianisations of finitely presented groups
Ralph Strebel
In this article, I study some classes of finitely presented groups with the aim of finding out whether the maximal metabelian quotients of the members of these classes admit finite…
math.GR2018
A converse to Schreier's index-rank formula
Ralph Strebel
In "Subgroups of free profinite groups and large subfields of Q" (Israel J. Math. 39 (1981), no. 1-2, pages 25-45; MR 617288) A. Lubotzky and L. van den Dries raise the question wh…