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https://hdl.handle.net/2440/57310
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Type: | Journal article |
Title: | Siciak-Zahariuta extremal functions, analytic discs and polynomial hulls |
Author: | Larusson, F. Sigurdsson, R. |
Citation: | Mathematische Annalen, 2009; 345(1):159-174 |
Publisher: | Springer-Verlag |
Issue Date: | 2009 |
ISSN: | 0025-5831 1432-1807 |
Statement of Responsibility: | Finnur Lárusson and Ragnar Sigurdsson |
Abstract: | We prove two disc formulas for the Siciak–Zahariuta extremal function of an arbitrary open subset of complex affine space. We use these formulas to characterize the polynomial hull of an arbitrary compact subset of complex affine space in terms of analytic discs. Similar results in previous work of ours required the subsets to be connected. |
DOI: | 10.1007/s00208-009-0345-5 |
Published version: | http://dx.doi.org/10.1007/s00208-009-0345-5 |
Appears in Collections: | Aurora harvest 5 Mathematical Sciences publications |
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