2014/10/16 by Guangbin Ren, Ren, Guangbin, Xieping Wang +1
Mathematics · #30C45 #30G35 #Complex Variables (math.CV) #FOS: Mathematics #math.CV #msc:30C45 #msc:30G35
paper · pdf · doi:10.48550/arxiv.1410.4369
24 pages; Accepted by Pacific Journal of Mathematics for publication
arxiv created 2017/01/14 · arxiv updated 2017/01/17
The sharp growth and distortion theorems are established for slice monogenic extensions of univalent functions on the unit disc \mathbb D⊂ \mathbb C in the setting of Clifford algebras, based on a new convex combination identity. The analogous results are also valid in the quaternionic setting for slice regular functions and we can even prove the Koebe type one-quarter theorem in this case. Our growth and distortion theorems for slice regular (slice monogenic) extensions to higher dimensions of univalent holomorphic functions hold without extra geometric assumptions, in contrast to the setting of several complex variables in which the growth and distortion theorems fail in general and hold only for some subclasses with the starlike or convex assumption.