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Splittings of mapping tori of free group automorphisms

Peter Brinkmann
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Abstract

We present necessary and sufficient conditions for the existence of a splitting over $\mathbb{Z}$ of the mapping torus $M_ϕ=F\rtimes \mathbb{Z}$ of a free group automorphism $ϕ$.

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Peter Brinkmann. 2002-01-10. Splittings of mapping tori of free group automorphisms. https://arxiv.org/abs/math/0106236

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