Right-angled Artin groups and finite subgraphs of curve graphs

preprint2014arXivOpen access

Abstract

We show that for a sufficiently simple surface SS, a right-angled Artin group A(Γ)A(Γ) embeds into $\Mod(S)$ if and only if ΓΓ embeds into the curve graph $\mC(S)$ as an induced subgraph. When SS is sufficiently complicated, there exists an embedding $A(Γ)\to\Mod(S)$ for some ΓΓ not contained in $\mC(S)$.

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