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Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika, 2009, Number 6, Pages 26–32
(Mi vmumm917)
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Mathematics
Cantor set and interpolation
O. D. Frolkina Lomonosov Moscow State University, Faculty of Mechanics and Mathematics
Abstract:
In 1998, Y. Benyamini published interesting results concerning interpolation of sequences using continuous functions $\mathbb R\to\mathbb R$. In particular, he proved that there exists a continuous function $\mathbb R\to \mathbb R$ which in some sense “interpolates” all sequences $(x_n)_{n\in\mathbb Z}\in [0,1]^{\mathbb Z}$ “simultaneously.” In 2005, R. Naulin M. and C. Uzcátegui unifyed and generalized Benyamini's results. In this paper, the case of topological spaces $X$ and $Y$ with an abelian group acting on $X$ is considered. A similar problem of “simultaneous interpolation” of all “generalized sequences” using continuous mappings $X\to Y$ is posed. Further generalizations of Naulin–Uncátegui theorems, in particular, multidimensional analogues of Benyamini's results are obtained.
Key words:
$\mathfrak G$-space, continuous mapping, interpolation, Cantor set.
Received: 23.04.2008
Citation:
O. D. Frolkina, “Cantor set and interpolation”, Vestnik Moskov. Univ. Ser. 1. Mat. Mekh., 2009, no. 6, 26–32
Linking options:
https://www.mathnet.ru/eng/vmumm917 https://www.mathnet.ru/eng/vmumm/y2009/i6/p26
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