Separating Pairs of Points by Standard Boxes

Noga Alon, Z. Füredi, M. Katchalski

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Let A be a set of distinct points in ℝd. A 2-subset {a, b} of A is called separated if there exists a closed box with sides parallel to the axes, containing a and b but no other points of A. Let s(A) denote the number of separated 2-sets of A and put f(n, d) = max {s(A): A ⊂ ℝd, |A| = n}. We show that f(n, 2) = [n2/4] + n − 2 for all n≥2 and that for each fixed dimension d f(n,d)=(1−1/2 2 d−1−1)⋅n2/2+o(n2).

Original languageEnglish
Pages (from-to)205-210
Number of pages6
JournalEuropean Journal of Combinatorics
Volume6
Issue number3
DOIs
Publication statusPublished - Jan 1 1985

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ASJC Scopus subject areas

  • Discrete Mathematics and Combinatorics

Cite this

Separating Pairs of Points by Standard Boxes. / Alon, Noga; Füredi, Z.; Katchalski, M.

In: European Journal of Combinatorics, Vol. 6, No. 3, 01.01.1985, p. 205-210.

Research output: Contribution to journalArticle

Alon, Noga ; Füredi, Z. ; Katchalski, M. / Separating Pairs of Points by Standard Boxes. In: European Journal of Combinatorics. 1985 ; Vol. 6, No. 3. pp. 205-210.
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