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UNIVERSAL DISTRIBUTION OF LIMIT POINTS
被引:0
|作者:
Meyrath, T.
[1
]
Niess, M.
[2
]
机构:
[1] Univ Trier, Fachbereich Math 4, D-54286 Trier, Germany
[2] Katholische Univ Eichstatt Ingolstadt, Math Geograph Fak, D-85071 Eichstatt, Germany
关键词:
imit point of zeros;
universality;
HYPERCYCLIC OPERATORS;
D O I:
10.1007/s10474-011-0114-2
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
We consider sequences of functions that have in some sense a universal distribution of limit points of zeros in the complex plane. In particular, we prove that functions having universal approximation properties on compact sets with connected complement automatically have such a universal distribution of limit points. Moreover, in the case of sequences of derivatives, we show connections between this kind of universality and some rather old results of Edrei/MacLane and Polya. Finally, we show the lineability of the set what we call Jentzsch-universal power series.
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页码:288 / 303
页数:16
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