---
_id: '4061'
abstract:
- lang: eng
  text: We present an algorithm to compute a Euclidean minimum spanning tree of a
    given set S of N points in Ed in time O(Fd (N,N) logd N), where Fd (n,m) is the
    time required to compute a bichromatic closest pair among n red and m green points
    in Ed . If Fd (N,N)=Ω(N1+ε), for some fixed e{open}&gt;0, then the running time
    improves to O(Fd (N,N)). Furthermore, we describe a randomized algorithm to compute
    a bichromatic closest pair in expected time O((nm log n log m)2/3+m log2 n+n log2
    m) in E3, which yields an O(N4/3 log4/3 N) expected time, algorithm for computing
    a Euclidean minimum spanning tree of N points in E3. In d≥4 dimensions we obtain
    expected time O((nm)1-1/([d/2]+1)+ε+m log n+n log m) for the bichromatic closest
    pair problem and O(N2-2/([d/2]+1)ε) for the Euclidean minimum spanning tree problem,
    for any positive e{open}.
acknowledgement: The first, second, and fourth authors acknowledge support from the
  Center for Discrete Mathematics and Theoretical Computer Science (DIMACS), a National
  Science Foundation Science and Technology Center under NSF Grant STC 88-09648. The
  second author's work was supported by the National Science Foundation under Grant
  CCR-8714565. The third author's work was supported by the Deutsche Forschungsgemeinschaft
  under Grant A1 253/1-3, Schwerpunktprogramm "Datenstrukturen und effiziente Algorithmen."
  The last two authors' work was also partially supported by the ESPRIT II Basic Research
  Action of the EC under Contract No. 3075 (project ALCOM).
article_processing_charge: No
article_type: original
author:
- first_name: Pankaj
  full_name: Agarwal, Pankaj
  last_name: Agarwal
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Otfried
  full_name: Schwarzkopf, Otfried
  last_name: Schwarzkopf
- first_name: Emo
  full_name: Welzl, Emo
  last_name: Welzl
citation:
  ama: Agarwal P, Edelsbrunner H, Schwarzkopf O, Welzl E. Euclidean minimum spanning
    trees and bichromatic closest pairs. <i>Discrete &#38; Computational Geometry</i>.
    1991;6(1):407-422. doi:<a href="https://doi.org/10.1007/BF02574698">10.1007/BF02574698</a>
  apa: Agarwal, P., Edelsbrunner, H., Schwarzkopf, O., &#38; Welzl, E. (1991). Euclidean
    minimum spanning trees and bichromatic closest pairs. <i>Discrete &#38; Computational
    Geometry</i>. Springer. <a href="https://doi.org/10.1007/BF02574698">https://doi.org/10.1007/BF02574698</a>
  chicago: Agarwal, Pankaj, Herbert Edelsbrunner, Otfried Schwarzkopf, and Emo Welzl.
    “Euclidean Minimum Spanning Trees and Bichromatic Closest Pairs.” <i>Discrete
    &#38; Computational Geometry</i>. Springer, 1991. <a href="https://doi.org/10.1007/BF02574698">https://doi.org/10.1007/BF02574698</a>.
  ieee: P. Agarwal, H. Edelsbrunner, O. Schwarzkopf, and E. Welzl, “Euclidean minimum
    spanning trees and bichromatic closest pairs,” <i>Discrete &#38; Computational
    Geometry</i>, vol. 6, no. 1. Springer, pp. 407–422, 1991.
  ista: Agarwal P, Edelsbrunner H, Schwarzkopf O, Welzl E. 1991. Euclidean minimum
    spanning trees and bichromatic closest pairs. Discrete &#38; Computational Geometry.
    6(1), 407–422.
  mla: Agarwal, Pankaj, et al. “Euclidean Minimum Spanning Trees and Bichromatic Closest
    Pairs.” <i>Discrete &#38; Computational Geometry</i>, vol. 6, no. 1, Springer,
    1991, pp. 407–22, doi:<a href="https://doi.org/10.1007/BF02574698">10.1007/BF02574698</a>.
  short: P. Agarwal, H. Edelsbrunner, O. Schwarzkopf, E. Welzl, Discrete &#38; Computational
    Geometry 6 (1991) 407–422.
date_created: 2018-12-11T12:06:42Z
date_published: 1991-12-01T00:00:00Z
date_updated: 2022-02-24T15:06:41Z
day: '01'
doi: 10.1007/BF02574698
extern: '1'
intvolume: '         6'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://link.springer.com/article/10.1007/BF02574698
month: '12'
oa: 1
oa_version: Published Version
page: 407 - 422
publication: Discrete & Computational Geometry
publication_identifier:
  eissn:
  - 1432-0444
  issn:
  - 0179-5376
publication_status: published
publisher: Springer
publist_id: '2062'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Euclidean minimum spanning trees and bichromatic closest pairs
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 6
year: '1991'
...
