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On `\(k\)-sets' in the plane - MaRDI portal

On `\(k\)-sets' in the plane (Q1077725)

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scientific article; zbMATH DE number 3958131
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English
On `\(k\)-sets' in the plane
scientific article; zbMATH DE number 3958131

    Statements

    On `\(k\)-sets' in the plane (English)
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    1985
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    A simple geometric proof is given for the following theorem of \textit{N. Alon} and \textit{E. Györi} [J. Comb. Theory, Ser. A 41, 154--157 (1986; Zbl 0584.05003)] that given \(n\) points on the plane, at most \(kn\) subsets of size \(\leq k\) can be separated from the rest by a line.
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    combinatorial geometry
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    separating lines
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    \(k\)-sets
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