Orthogonal subdivisions with low stabbing numbers

  • Authors:
  • Csaba D. Tóth

  • Affiliations:
  • MIT, Cambridge, MA

  • Venue:
  • WADS'05 Proceedings of the 9th international conference on Algorithms and Data Structures
  • Year:
  • 2005

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Abstract

It is shown that for any orthogonal subdivision of size n in a d-dimensional Euclidean space, d ∈ℕ, d ≥ 2, there is an axis-parallel line that stabs at least Ω(log1/(d−1)n) boxes. For any integer k, 1≤ kd, there is also an axis-aligned k-flat that stabs at least Ω(log$^{\rm 1/ \lfloor (d-1)/k \rfloor }$n) boxes of the subdivision. These bounds cannot be improved.