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Distinct Distances on Algebraic Curves in the Plane

Published online by Cambridge University Press:  15 July 2016

JÁNOS PACH  and
FRANK DE ZEEUW
JÁNOS PACH
Affiliation:
Department of Mathematics, EPFL, Lausanne, Switzerland and Rényi Institute, Budapest, Hungary (e-mail: [email protected])
FRANK DE ZEEUW
Affiliation:
Department of Mathematics, EPFL, Lausanne, Switzerland (e-mail: [email protected])
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Abstract

Let S be a set of n points in ${\mathbb R}^{2}$ contained in an algebraic curve C of degree d. We prove that the number of distinct distances determined by S is at least cdn4/3, unless C contains a line or a circle.

We also prove the lower bound cd′ min{m2/3n2/3, m2, n2} for the number of distinct distances between m points on one irreducible plane algebraic curve and n points on another, unless the two curves are parallel lines, orthogonal lines, or concentric circles. This generalizes a result on distances between lines of Sharir, Sheffer and Solymosi in [19].

Keywords

Primary 52C10Secondary 52C45
Type
Paper
Information
Combinatorics, Probability and Computing , Volume 26 , Issue 1 , January 2017 , pp. 99 - 117
Copyright
Copyright © Cambridge University Press 2016 

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References

[1] Barone, S. and Basu, S. (2016) On a real analogue of Bezout inequality and the number of connected components of sign conditions. Proc. London Math. Soc. 112 115–145.CrossRefGoogle Scholar
[2] Basu, S., Pollack, P. and Roy, M.-F. (2006) Algorithms in Real Algebraic Geometry, Springer.Google Scholar
[3] Brass, P., Moser, W. and Pach, J. (2005) Research Problems in Discrete Geometry, Springer.Google Scholar
[4] Charalambides, M. (2014) Exponent gaps on curves via rigidity. Discrete Comput. Geom. 51 666–701.Google Scholar
[5] Cox, D., Little, J. and O'Shea, D. (2007) Ideals, Varieties, and Algorithms: An Introduction to Computational Algebraic Geometry and Commutative Algebra, Springer.CrossRefGoogle Scholar
[6] Elekes, G. (1999) A note on the number of distinct distances. Period. Math. Hung. 38 173–301.Google Scholar
[7] Elekes, G. and Rónyai, L. (2000) A combinatorial problem on polynomials and rational functions. J. Combin. Theory Ser. A 89 1–20.Google Scholar
[8] Elekes, G and Sharir, M. (2011) Incidences in three dimensions and distinct distances in the plane. Combin. Probab. Comput. 20 571–608.CrossRefGoogle Scholar
[9] Erdős, P. (1946) On sets of distances of n points. Amer. Math. Monthly 53 248–250.Google Scholar
[10] Gibson, C. (1998) Elementary Geometry of Algebraic Curves, Cambridge University Press.Google Scholar
[11] Guth, L. and Katz, N. H. (2015) On the Erdős distinct distances problem in the plane. Ann. of Math. 181 155–190.Google Scholar
[12] Harris, J. (1992) Algebraic Geometry: A First Course, Springer.Google Scholar
[13] Heintz, J. (1983) Definability and fast quantifier elimination in algebraically closed fields. Theoret. Comput. Sci. 24 239–277.Google Scholar
[14] Kaplan, H., Matoušek, J. and Sharir, M. (2012) Simple proofs of classical theorems in discrete geometry via the Guth–Katz polynomial partitioning technique. Discrete Comput. Geom. 48 499–517.CrossRefGoogle Scholar
[15] Pach, J. and Sharir, M. (1992) Repeated angles in the plane and related problems. J. Combin. Theory Ser. A 59 12–22.CrossRefGoogle Scholar
[16] Pach, J. and Sharir, M. (1998) On the number of incidences between points and curves. Combin. Probab. Comput. 7 121–127.Google Scholar
[17] Raz, O. E., Sharir, M. and Solymosi, J. (2014) Polynomials vanishing on grids: The Elekes–Rónyai problem revisited. In SOCG'14: Proceedings of the 30th Annual Symposium on Computational Geometry, pp. 198–205.Google Scholar
[18] Schwartz, R., Solymosi, J. and de Zeeuw, F. (2013) Extensions of a result of Elekes and Rónyai. J. Combin. Theory Ser. A 120 1695–1713.CrossRefGoogle Scholar
[19] Sharir, M., Sheffer, A. and Solymosi, J. (2013) Distinct distances on two lines. J. Combin. Theory Ser. A 120 1732–1736.Google Scholar
[20] Sharir, M. and Solymosi, J. (2016) Distinct distances from three points. Combin. Probab. Comput. 25 623–632.Google Scholar
[21] Sheffer, A., Zahl, J. and de Zeeuw, F. (2014) Few distinct distances implies no heavy lines or circles. Combinatorica, to appear. doi:10.1007/s00493-014-3180-6 Google Scholar
[22] Solymosi, J. and Tao, T. (2012) An incidence theorem in higher dimensions. Discrete Comput. Geom. 48 255–280.Google Scholar