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arXiv · 2505.18808

An EZ-structure for the mapping class group

Ursula Hamenstädt
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Abstract

We construct a boundary for the mapping class group Mod(S) of a surface S of finite type. The action of Mod(S) on this boundary is minimal, strongly proximal and topologically free. The boundary is the boundary of an EZ-structure for Mod(S).

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Ursula Hamenstädt. 2026-07-04. An EZ-structure for the mapping class group. https://arxiv.org/abs/2505.18808

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