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Necessary and sufficient conditions for hyperplane transversals

Published: 05 June 1989 Publication History

Abstract

We will prove that a finite family B = {B1, B2, …, Bn} of connected compact sets in Rd has a hyperplane transversal if and only if for some k there exists a set of points P = {P1, P2, …, Pn} (i.e. a k-dimensional labeling of the family) which spans Rk and every k + 2 sets of B are met by a k-flat consistent with the order type of P. This is a common generalization of theorems of Hadwiger, Katchalski, Goodman-Pollack and Wenger.

References

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J. Eckhoff, 'Radon's theorem', Contributions to Geometry, ed. J. Tiilke and J. M. Wills, Birkh%lser pp.lG4-lS5 (1979)
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J. E. Goodma,n a,nd R. Pollack, 'Multidimensional sorting', SIAM J. Computing Vol.12 pp. 484-507 (1953)
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J. E. Goodman and R. Polla.ck, 'Hadwiger's transversal theorem in higher dimensions', Jomzal of Am. Math. Sot. l(2)
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  1. Necessary and sufficient conditions for hyperplane transversals

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      cover image ACM Conferences
      SCG '89: Proceedings of the fifth annual symposium on Computational geometry
      June 1989
      401 pages
      ISBN:0897913183
      DOI:10.1145/73833
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      Published: 05 June 1989

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