scholarly journals Proper holomorphic maps from the unit disk to some unit ball

2016 ◽  
Vol 145 (6) ◽  
pp. 2649-2660 ◽  
Author(s):  
John P. D’Angelo ◽  
Zhenghui Huo ◽  
Ming Xiao

2015 ◽  
Vol 117 (2) ◽  
pp. 170
Author(s):  
Cristina Giannotti ◽  
Andrea Spiro

We prove a generalisation of Rudin's theorem on proper holomorphic maps from the unit ball to the case of proper holomorphic maps from pseudoellipsoids.





2014 ◽  
Vol 271 (1) ◽  
pp. 1-24 ◽  
Author(s):  
Gautam Bharali ◽  
Jaikrishnan Janardhanan




2017 ◽  
Vol 28 (03) ◽  
pp. 1750017 ◽  
Author(s):  
Cinzia Bisi ◽  
Caterina Stoppato

During the development of the theory of slice regular functions over the real algebra of quaternions [Formula: see text] in the last decade, some natural questions arose about slice regular functions on the open unit ball [Formula: see text] in [Formula: see text]. This work establishes several new results in this context. Along with some useful estimates for slice regular self-maps of [Formula: see text] fixing the origin, it establishes two variants of the quaternionic Schwarz–Pick lemma, specialized to maps [Formula: see text] that are not injective. These results allow a full generalization to quaternions of two theorems proven by Landau for holomorphic self-maps [Formula: see text] of the complex unit disk with [Formula: see text]. Landau had computed, in terms of [Formula: see text], a radius [Formula: see text] such that [Formula: see text] is injective at least in the disk [Formula: see text] and such that the inclusion [Formula: see text] holds. The analogous result proven here for slice regular functions [Formula: see text] allows a new approach to the study of Bloch–Landau-type properties of slice regular functions [Formula: see text].





2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Qing-Hua Xu ◽  
Tai-Shun Liu

LetSbe the familiar class of normalized univalent functions in the unit disk. Fekete and Szegö proved the well-known resultmaxf∈S⁡a3-λa22=1+2e-2λ/(1-λ)forλ∈0, 1. We investigate the corresponding problem for the class of starlike mappings defined on the unit ball in a complex Banach space or on the unit polydisk inCn, which satisfies a certain condition.



1990 ◽  
Vol 60 (2) ◽  
pp. 363-388 ◽  
Author(s):  
Alan Noell ◽  
Berit Stens�nes




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