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arxiv: 1409.6029 · v1 · pith:DRQRMGN6new · submitted 2014-09-21 · 🧮 math.GR

The virtual first Betti number of soluble groups

classification 🧮 math.GR
keywords bettifirstnumberboundfinitefinitelygroupgroups
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We show that if a group G is finitely presented and nilpotent-by-abelian-by-finite, then there is an upper bound on the first betti number of M as M runs through all subgroups of finite index in G.

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