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Paper detail

Big Flip Graphs and Their Automorphism Groups

In this paper, we study the relationship between the mapping class group of an infinite-type surface and the simultaneous flip graph, a variant of the flip graph for infinite-type surfaces defined by Fossas and Parlier. We show that the extended mapping class group is isomorphic to a proper subgroup of the automorphism group of the flip graph, unlike in the finite-type case. This shows that Ivanov's metaconjecture, which states that any "sufficiently rich" object associated to a finite-type surface has the extended mapping class group as its automorphism group, does not extend to simultaneous flip graphs of infinite-type surfaces.

preprint2022arXivOpen access
Assaf Bar-NatanAdvay GoelBrendan HalsteadPaul HamrickSumedh ShenoyRishi Verma
math.GT
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Assaf Bar-NatanAdvay GoelBrendan HalsteadPaul HamrickSumedh ShenoyRishi Verma

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