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research article

Approximating the rectilinear crossing number

Fox, Jacob
•
Pach, Janos  
•
Suk, Andrew  
August 1, 2019
Computational Geometry-Theory And Applications

A straight-line drawing of a graph G is a mapping which assigns to each vertex a point in the plane and to each edge a straight-line segment connecting the corresponding two points. The rectilinear crossing number of a graph G, (cr) over bar (G), is the minimum number of pairs of crossing edges in any straight-line drawing of G. Determining or estimating (cr) over bar (G) appears to be a difficult problem, and deciding if (cr) over bar (G) <= k is known to be NP-hard. In fact, the asymptotic behavior of (cr) over bar (K-n) is still unknown. In this paper, we present a deterministic n(2+o(1))-time algorithm that finds a straight-line drawing of any n-vertex graph G with ((cr) over barG)+ o(n(4)) pairs of crossing edges. Together with the well-known Crossing Lemma due to Ajtai et al. and Leighton, this result implies that for any dense n-vertex graph G, one can efficiently find a straight-line drawing of G with (1 + o(1))(cr) over bar (G) pairs of crossing edges. (C) 2019 Elsevier B.V. All rights reserved.

  • Details
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Type
research article
DOI
10.1016/j.comgeo.2019.04.003
Web of Science ID

WOS:000468713600005

Author(s)
Fox, Jacob
•
Pach, Janos  
•
Suk, Andrew  
Date Issued

2019-08-01

Published in
Computational Geometry-Theory And Applications
Volume

81

Start page

45

End page

53

Subjects

Mathematics, Applied

•

Mathematics

•

Mathematics

•

crossing number

•

regularity lemmas

•

straight-line drawings

•

quasi-random graphs

•

order types

•

graph

•

bounds

•

complexity

•

sequences

•

algorithm

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
DCG  
Available on Infoscience
June 18, 2019
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/157712
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