Movement of branch points in Ahlfors' theory of covering surfaces

2023/07/10 by Chen, Yun-Ling, Lin, Tian-Run, Zhang, Guang-Yuan
#30D45 #52B60 #Complex Variables (math.CV) #FOS: Mathematics #[2020] 30D35

paper · doi:10.48550/arxiv.2307.04315

Abstract

In this paper, we will prove a result which is used by Guang-Yuan Zhang in another paper in which the existence of extremal surfaces for covering surfaces is proved and the sharp form of Ahlfors' Second Fundamental Theorem is given.

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