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Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika, 2017, Number 4, Pages 15–20
(Mi vmumm76)
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Mathematics
Metric projection onto subsets of compact connected two-dimensional Riemannian manifolds
K. S. Shklyaev Lomonosov Moscow State University, Faculty of Mechanics and Mathematics
Abstract:
The paper is focused on combinatorial properties of the metric projection $P_{E}$ of a compact connected Riemannian two-dimensional manifold $M^{2}$ onto its subset $E$ consisting of $k$ closed connected sets $E_{j}$. The point $x \in M^{2}$ is called exceptional if $P_{E}(x)$ contains points from no less than three different $E_{j}$. The sharp estimate for the number of exceptional points is obtained in terms of $k$ and the type of the manifold $M^{2}$. Similar estimate is proved for finitely connected subsets $E$ of a normed plane.
Key words:
two-dimensional manifold, metric projection, Euler inequality, exceptional points.
Received: 20.04.2016
Citation:
K. S. Shklyaev, “Metric projection onto subsets of compact connected two-dimensional Riemannian manifolds”, Vestnik Moskov. Univ. Ser. 1. Mat. Mekh., 2017, no. 4, 15–20; Moscow University Mathematics Bulletin, 72:4 (2017), 149–153
Linking options:
https://www.mathnet.ru/eng/vmumm76 https://www.mathnet.ru/eng/vmumm/y2017/i4/p15
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Abstract page: | 203 | Full-text PDF : | 53 | References: | 22 | First page: | 5 |
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