Improved Bounds for Geometric Permutations

  • Authors:
  • Natan Rubin;Haim Kaplan;Micha Sharir

  • Affiliations:
  • rubinnat@post.tau.ac.il;haimk@post.tau.ac.il;michas@post.tau.ac.il

  • Venue:
  • SIAM Journal on Computing
  • Year:
  • 2012

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Abstract

We show that the number of geometric permutations of an arbitrary collection of $n$ pairwise disjoint convex sets in ${\mathbb R}^d$, for $d\geq 3$, is $O(n^{2d-3}\log n)$, improving Wenger's 20-year-old bound of $O(n^{2d-2})$.