课程名称：Entire functions arising from "trees"
时 间 12月15日
教 室 教五楼 5106 教一楼 1102
课程简介：The classical type problem asks for the conformal type of an open simply connected Riemann surface which is constructed in some specific way. The connection of the type problem with the function theory was studied by many authors, including Nevanlinna, Ahlfors, Teichm¨uller and Speiser. In this talk we continue to explore this connection. We will first give a topological and combinatorial proof of a result of Nevanlinna and then use similar ideas to show that certain entire functions can be constructed from some graphs which are in some sense close to trees from a large-scale observation.