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Blocking \(s\)-dimensional subspaces by lines in \(PG(2s,q)\) - MaRDI portal

Blocking \(s\)-dimensional subspaces by lines in \(PG(2s,q)\) (Q1385981)

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scientific article; zbMATH DE number 1149464
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English
Blocking \(s\)-dimensional subspaces by lines in \(PG(2s,q)\)
scientific article; zbMATH DE number 1149464

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    Blocking \(s\)-dimensional subspaces by lines in \(PG(2s,q)\) (English)
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    6 May 1998
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    The aim of this paper is to investigate sets of lines in \(PG(d,q)\) such that every \(s\)-dimensional subspace contains a line of this set. The authors determine the minimum number of lines in such a set and show that there is only one type of such a set with this minimum number of lines. If \(d\leq 2s-1\), this problem is solved by \textit{A. Beutelspacher} and \textit{J. Ueberberg} [Eur. J. Comb. 12, No. 4, 277-281 (1991; Zbl 0752.05013)].
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    projective spaces
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    hyperplanes
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    \(S\)-spaces
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