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math.GR2026
Spherical and affine Artin groups, finite quotients, and the isomorphism problem
Sam Hughes, Thomas Ng, Kaitlin Ragosta +2
We compute the smallest non-abelian quotients of spherical and affine Artin groups. Usually, these are isomorphic to the smallest non-abelian quotients of the corresponding Coxeter…
math.GT2026
Graphs of Quasicircles and Quasiconformal Homeomorphisms
Katherine Williams Booth, Alexander Nolte, Yvon Verberne
We give a combinatorial characterization of the group of quasiconformal homeomorphisms of a closed, oriented surface of genus at least . In particular, we prove they are exa…