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Automorphisms of the Hatcher-Thurston complex

Elmas Irmak·Mustafa Korkmaz
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Abstract

Let S be a compact, connected, orientable surface of positive genus. Let HT(S) be the Hatcher-Thurston complex of S. We prove that Aut(HT(S)) is isomorphic to the extended mapping class group of S modulo its center.

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Elmas Irmak, Mustafa Korkmaz. 2004-11-10. Automorphisms of the Hatcher-Thurston complex. https://arxiv.org/abs/math/0409033

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