Abstract:
In 1982, Leighton proved that any two finite graphs with a common cover admits a finite sheeted common cover. In this talk, I will introduce the combinatorial model X_{m,n} for Baumslag-Solitar group BS(m,n), and classify for which pairs of integers (m,n) the Leighton’s theorem can be extended to the orbit space of covering actions on X_{m,n}.
Status: Accepted
Collection: Semi-Plenary Talks
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