Univalent mappings associated with the Roper-Suffridge extension operator

Univalent mappings associated with the Roper-Suffridge extension operator
复制标题

DOI:
10.1007/bf02788995
复制
发表时间:
2000-12
期刊:
Journal d’Analyse Mathématique
影响因子:
--
通讯作者:
Ian D. Graham;G. Kohr
Ian D. Graham;G. Kohr
中科院分区:
其他
文献类型:
--
作者:
Ian D. Graham;G. Kohr

文献摘要

被引文献

相似文献

Roper-Suffridge扩张算子提供了一种将(局部)单叶函数f εH(U)扩张到(局部)双全纯映射F ∈H(Bn)的方法.本文给出了Roper-Suffridge定理的一个简化证明:如果F是凸的,那么F也是凸的。证明了当f ∈S* 时,F是星形的,且f是U上的Bloch函数,则F是Bn上的Bloch映射.最后,我们研究了一些开放的问题。
The Roper-Suffridge extension operator provides a way of extending a (locally) univalent functionfεH(U)to a (locally) biholomorphic mappingF∈H(Bn). In this paper, we give a simplified proof of the Roper-Suffridge theorem: iffis convex, then so isF. We also show that iff∈S*, theFis starlike and that iffis a Bloch function inU, thenFis a Bloch mapping onBn. Finally, we investigate some open problems.