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Comparison of period coordinates and Teichmüller distances

Ian Frankel

Algebraic & Geometric Topology 24 (2024) 2451–2508
Abstract

We show that when two unit-area quadratic differentials are 𝜖–close with respect to good systems of period coordinates and lie over a compact subset K of the moduli space of Riemann surfaces g,n, then their underlying Riemann surfaces are C𝜖α–close in the Teichmüller metric. Here, α depends only on the genus g and the number of marked points, while C depends on K.

Keywords
Teichmüller, quadratic differential, flat surface
Mathematical Subject Classification
Primary: 30F60
References
Publication
Received: 16 April 2021
Revised: 15 April 2023
Accepted: 9 June 2023
Published: 19 August 2024
Authors
Ian Frankel
Monroe Township, NJ
United States

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