Increasing paths leading to a face of a convex compact set in a Hilbert space (Q1123405)
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scientific article; zbMATH DE number 4109499
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Increasing paths leading to a face of a convex compact set in a Hilbert space |
scientific article; zbMATH DE number 4109499 |
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Increasing paths leading to a face of a convex compact set in a Hilbert space (English)
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1988
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This paper is a sequel of a work of the same author in Pac. J. Math. 124, 289-294 (1986; Zbl 0593.52001), where the author proves that if the face \(F=\{x\in C:\) \(\ell (x)=\max_{y\in C} \ell (y)\}\), C being the compact set in the normed linear space E, is of infinite dimension, then for every \(n\in {\mathbb{N}}^*\), there are n-strictly increasing paths on the one-skeleton of C mutually disjoint that lead in F. Here the author proves that if the dimension of F is k, then there are \(k+1\) such paths, for every \(k\in {\mathbb{N}}^*\), and gives an example showing that this result is the best possible in a Hilbert space.
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extreme point
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exposed point
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increasing path on the one-skeleton of a convex compact set in a normed space
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0.7578879594802856
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0.6910164952278137
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0.6888442039489746
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