Guowu Yao

most citedA binary infinitesimal form of Teichmuller metric

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math.CV2009★ 2 cited

A binary infinitesimal form of Teichmuller metric

Guowu Yao

Let $S$ be a Riemann surface of analytic finite type or the unit disk in the complex plane. Let $[μ]$ denote the Teichmüller equivalence classes of Beltrami differentials $μ$ . We a…

math.CV2008★ 1 cited

Fundamental theorem of hyperbolic geometry without the injectivity assumption

Guowu Yao

Let $H^{n}$ be the $n -$ dimensional hyperbolic space. It is well known that, if $f : H^{n} \to H^{n}$ is a bijection that preserves $r -$ dimensional hyperplanes, t…

math.CV2007

Existence of extremal Beltrami coefficients with non-constant modulus

Guowu Yao

Suppose $[μ]_{T (Δ)}$ is a point of the universal Teichmüller space $T (Δ)$ . In 1998, it was shown by Božin et al. that there exists $μ$ such that $μ$ has non-constant modulus and is…