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- W4286409868 abstract "We give a new characterisation of virtually free groups using graph minors. Namely, we prove that a finitely generated, infinite group is virtually free if and only if for any finite generating set, the corresponding Cayley graph is minor excluded. This answers a question of Ostrovskii and Rosenthal. The proof relies on showing that a finitely generated group that is minor excluded with respect to every finite generating set is accessible, using a graph-theoretic characterisation of accessibility due to Thomassen and Woess." @default.
- W4286409868 created "2022-07-22" @default.
- W4286409868 creator A5013616575 @default.
- W4286409868 date "2020-06-30" @default.
- W4286409868 modified "2023-09-23" @default.
- W4286409868 title "A characterisation of virtually free groups via minor exclusion" @default.
- W4286409868 doi "https://doi.org/10.48550/arxiv.2006.16918" @default.
- W4286409868 hasPublicationYear "2020" @default.
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