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A survey on mapping class groups of 3-manifolds

Philipp Bader, Rachael Boyd, Giulia Carfora, Gabriel Corrigan, Daniel Galvin, Csaba Nagy, John Nicholson, Weizhe Niu, Isacco Nonino, Mark Pencovitch, Mark Powell

math.GTarXiv:2609.00233

Abstract

We survey computations and tools concerning the mapping class group of a compact, oriented, connected 3-manifold M. We provide a guide to the literature and sketch proofs for various families of irreducible and geometric 3-manifolds. We also consider JSJ and prime decompositions of 3-manifolds, and consequences for their mapping class groups.

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