Univalent functions with quasiconformal extensions
Autor: | Paul Deiermann |
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Rok vydání: | 1992 |
Předmět: | |
Zdroj: | Complex Variables, Theory and Application: An International Journal. 19:243-257 |
ISSN: | 1563-5066 0278-1077 |
DOI: | 10.1080/17476939208814578 |
Popis: | By the method of extremal length, three general theorems are proven which find, as corollaries, sharp coefficient bounds for functions univalent in the exterior of the unit disc, with a standard normalization but also assuming a finite number of initial coefficients are zero, which possess a K-quasiconformal extension to a ring subdomain of the unit disc. All extremal functions are exhibited. Similar estimates are found for functions similar to the above but which omit a fixed disc centered at the origin. |
Databáze: | OpenAIRE |
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