11 M. Elin The Galilee Research Center for Applied Mathematics of ORT Braude College Karmiel, Israel
Continuous Semigroups
33 Spirallike and starlike mappings
44 In the one-dimensional settings - the well-known criteria of Nevanlinna, Study and Špaček In multi-dimensional situations – Suffridge, Gurganus, Pfaltzgraff, Gong, … In multi-dimensional situations – not all of the analogues hold, proofs are very complicated, examples are rather hard to construct. Spirallike and starlike mappings
55 Since the work of Roper and Suffridge in 1995, there has been considerable interest in constructing holomorphic mappings of the unit ball in a Banach space with various geometric properties by using mappings with similar properties acting in a subspace. Such properties include convexity, starlikeness, spirallikeness, and so on. It is also of interest to extend subordination chains, semigroups and semigroup generators. Extension Operators
Roper-Suffridge extension operator
7 Modifications of R-S extension operator Pfaltzgraff, Suffridge, 1997 I.Graham, G.Kohr, M.Kohr, 2000 I.Graham, G.Kohr, 2000
8 Modifications of R-S extension operator - the chain rule is invertible
99 Some notations
10 Main notation and notion
11 Extension operators for semigroups
12 Extensions of spirallike mappings and subordination chains
13 Extensions of spirallike mappings
14 Extensions of spirallike mappings
15 Extensions of spirallike mappings
16 Extension operator: Extreme Points, Support Points Further question
Muir’s extension operator
Geometric explanation
Covering results
Roper-Suffridge type operator
Spiralikeness for Muir’s type operator
23 Thank you for your attention!