Regions of variability for convex functions

Regions of variability for convex functions
复制标题

DOI:
10.1002/mana.200310449
复制
发表时间:
2006-11
影响因子:
1
通讯作者:
H. Yanagihara
H. Yanagihara
中科院分区:
数学3区
文献类型:
--
作者:
H. Yanagihara

文献摘要

相似文献

设𝒞是由f(0)=f‘(0)-1=0规范的单位圆盘𝔻中的凸单叶函数类。对于z 0∈𝔻和|λ|≤1,我们将明确地确定可变性区域{log f‘(Z 0):F∈𝒞,f“(0)=2λ}。(2006 Wiley-VCH Verlag GmbH&Co.KGaA,Weinheim)
Let 𝒞 be the class of convex univalent functions f in the unit disc 𝔻 normalized by f (0) = f ′(0) – 1 = 0. For z 0 ∈ 𝔻 and |λ | ≤ 1 we shall determine explicitly the regions of variability {log f ′(z 0): f ∈ 𝒞, f ″(0) = 2λ }. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)