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Maps to Spaces of Compacta Determined by Limit Sets
A. P. Devyatkov Tyumen State University
Abstract:
For a sequence of functions on the unit disk $D\subset\mathbb C$, the map of the boundary circle to a space of compact sets with Hausdorff metric which takes each point $e^{i\theta}\in\partial D$ to the limit set of the sequence of functions at this point is considered. It is shown that such a map is of Borel class at most 4.
Keywords:
Borel map, Borel class, limit set of a sequence of functions, Hausdorff metric.
Received: 15.03.2010 Revised: 16.03.2012
Citation:
A. P. Devyatkov, “Maps to Spaces of Compacta Determined by Limit Sets”, Mat. Zametki, 93:3 (2013), 368–372; Math. Notes, 93:3 (2013), 392–396
Linking options:
https://www.mathnet.ru/eng/mzm8833https://doi.org/10.4213/mzm8833 https://www.mathnet.ru/eng/mzm/v93/i3/p368
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Abstract page: | 454 | Full-text PDF : | 194 | References: | 87 | First page: | 20 |
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