Integrably asymptotic affine homeomorphisms of the circle and Teichmüller spaces

A quasisymmetric homeomorphism of the unit circle S1 is called integrably asymptotic affine if it admits a quasiconformal extension into the unit disk so that its complex dilatation is square integrable in the Poincar metric on the unit disk. Let QS*(S1) be the space of such maps. Here we give some characterizations and properties of maps in QS(S1). We also show that QS*(S1)/M(O)b(S1) is the completion of Diff(S1)/M(O)b(S1) in the Weil-Petersson metric.     

关于Teichmüller极值的等价性

分别记T(Δ)与B(Δ)为单位圆盘Δ上的Teichmüller空间与无限小Teichmüller空间.证明了|v|B(Δ)是无限小Strebel点并不能说明|v|T(Δ)是一个Strebel点以及|v|T(Δ)是Strebel点并不能说明|v|B(Δ)是一个无限小Strebel点.作为这个结论的应用,解决了姚国武提出的问题.     

Some characterizations of the integrable Teichmüller space

In this paper, we prove that the Bers projection of the integrable Teichmller space is holomorphic. By using the Douady-Earle extension, we obtain some characterizations of the integrable Teichmller space as well as the p-integrable asymptotic affine homeomorphism.     

渐近Teichmüller空间的不唯一性

设AT(△)是单位圆盘△上所有渐近Teichmüller等价类[[μ]]或[[f~μ]]构成的渐近Teichmüller空间.本文证明了对AT(△)内的任意渐近极值的f~μ,总存在一个[[f~μ]]内的渐近极值映射g~v,使边界伸缩商h~*(μ_(fog)~(-1)(g(z)))≠0.同时也获得了AT(△)在基点处的切空间上的类似结果.     

Teichmüller空间上纤维空间之间的同构

主要研究Teichmüller空间上一些重要的纤维空间,包括Bers纤维空间和Teichmüller曲线．证明“穿孔”Teichmüller曲线之间的一个同构定理,并研究这些纤维空间之间的双全纯同构．     

Integrable Teichmüller spaces

A new kind of subspaces of the universal Teichmüller space is introduced. Some characterizations of the subspaces are given in terms of univalent functions, Beltrami coefficients and quasisymmetric homeomorphisms of the boundary of the unit disc.     

Stable Teichmller mappings of type (0,4)

Let X = C{0,1} and X = X{}. We get a necessary and suficient condition on the position of  in X such that X has stable Teichmller mappings. Furthermore, we can formulate all these stable Teichmller mappings. The main result in this paper partially answers a question posed by Kra.     

双曲区域上的Teichmüller极值映射

本文讨论双曲区域上的极值映射，构造了两个Ｔｅｉｃｈｍüｌｅｒ极值映射，并对由圆锥曲线界成的区域的极值情况作了分类．     

Non-Strebel points and variability sets

This paper studies the subset of the non-Strebel points in the universal Teichmuller space T. Let Z0 ∈ △be a fixed point. Then we prove that for every non-Strebel point h, there is a holomorphic curve γ : [0, 1]→ T with h as its initial point satisfying the following conditions.(1) The curve γ is on a sphere centered at the base-point of T, i.e. dT(id, γ(t)) = dT(id, h), (t ∈ [0, 1]).(2) For every t ∈ (0,1], the variability set Vγ(t)[Z0] of γ(t) has non-empty interior, i.e. Vγ(t) [Z0] ≠ .     

关于Teichmüller映射初始二次微分的计算机算法

利用Marden和Strebel关于高度映射的结果,伍胜健设计了Teichmüller映射初始二次微分的迭代算法,由此给出了关于Teichmüller映射初始二次微分计算的理论结果,利用该结果并结合Gortler,Thurston和Palmer关于离散二次微分的研究,本文设计了初始二次微分的计算机算法.     

星形函数与万有Teichmüller空间的一个模型

得到了,当f(z)∈S*[A,B]且-1相似文献   

Hyperbolic Mapping Classes and Their Lifts on the Bers Fiber Space

Let S be a Riemann surface with genus p and n punctures. Assume that 3p - 3 n ＞ 0 and n ≥ 1. Let a be a puncture of S and let (～S) = S ∪ {a}. Then all mapping classes in the mapping class group Mods that fixes the puncture a can be projected to mapping classes of Mod(～S) under the forgetful map. In this paper the author studies the mapping classes in Mods that can be projected to a given hyperbolic mapping class in Mod(～S).     

Notes on Univalent Functions and the Universal Teichmüller Space

万有Ｔｅｉｃｈｍüｌｅｒ空间Ｔ是所有规范的拟对称同胚组成的集合．在Ｂｅｒｓ嵌入下，Ｔ与Δ上共形映射的Ｓｃｈｗａｒｚ导数密切相关．本文讨论由规范的对称同胚所组成的子集Ｔ０的相应性质．     

万有Teichmüller空间与Loewner链

通过采用构造Loewner链的方法,得到了单叶函数的充分条件,同时,结合万有Teichmüller空间理论,利用Loewner链构造了单叶函数的拟共形扩张表达式,并且得到了一些拟圆区域的单叶性内径的下界估计不等式.     

万有Teichmüller空间对数导数嵌入模型的一些性质

在对数导数意义下,万有Teichmüller空间T_1可表示为无穷多个互不相交的连通分支的并集T_1={■ L_θ}∪L,研究了该模型分支边界的几何性质,证明了L与L_θ的边界存在无穷多个公共点,同时还解决了关于一个分支中的点到另一分支中心距离上确界的公开问题．     

万有Teichmüller空间对数导数嵌人模型的一些性质

在对数导数意义下,万有Teichmüller空间T1可表示为无穷多个互不相交的连通分支的并集T1={∪θ∈[0,2)Lθ}∪L,研究了该模型分支边界的几何性质,证明了L与Lθ的边界存在无穷多个公共点,同时还解决了关于一个分支中的点到另一分支中心距离上确界的公开问题.     

Teichmǖller曲线的一个同构定理

证明了对于任意一个Fuchs群Γ．当H／Γ是一个双曲型Riemann曲面时,Teichmuller曲线V(Γ)上有唯一的复流形结构,使得从Bers纤维空间F(Γ)到 V(Γ)的自然投影是全纯的且有局部全纯截面,并推广了如下经典结果:当H／Γ是紧双曲型Riemann曲面时,V(Γ)只依赖于Γ的型而与Γ的椭圆型元素的阶数无关．