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arXiv · 1607.04890

On joins and intersections of subgroups in free groups

Sergei V. Ivanov
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Abstract

We study graphs of (generalized) joins and intersections of finitely generated subgroups of a free group. We show how to disprove a lemma of Imrich and M\"uller on these graphs and how to repair this lemma.

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Sergei V. Ivanov. 2016-07-17. On joins and intersections of subgroups in free groups. https://arxiv.org/abs/1607.04890

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