Non-Strebel points and variability sets |
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Authors: | Email author" target="_blank">Yi?QiEmail author Shengjian?Wu |
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Institution: | 1. Department of Applied Mathematics, Beijing University of Aeronautics and Astronautics, Beijing 100083,China 2. LMAM, School of Mathematical Sciences, Peking University, Beijing 1008711, China |
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Abstract: | This paper studies the subset of the non-Strebel points in the universal Teichmüller spaceT. Let z0 ∈ Δ be a fixed point. Then we prove that for every non-Strebel pointh, there is a holomorphic curve γ: 0, 1] →T withh as its initial point satisfying the following conditions. (1) The curve γ is on a sphere centered at the base-point ofT, i.e.d
T
(id, γ(t))=d
T
(id, h), (t∈0, 1]). (2) For everyt ∈ (0,1], the variability set Vγ(t)z0] of γ(t) has non-empty interior, i.e.
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Keywords: | quasiconformal mapping quasisymmetric mapping Teichmtiller space |
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