Abstract
The paper presents the first sublinear algorithm for computing order statistics in the Farey sequences. The algorithm runs in time O(n 3/4logn) and in space \(O(\sqrt n\,)\) for Farey sequence of order n. This is a significant improvement to the algorithm from [1] that runs in time O(nlogn).
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Pǎtrascu, C.E, Pǎtrascu, M.: Computing order statistics in the Farey sequence. In: Buell, D.A. (ed.) Algorithmic Number Theory. LNCS, vol. 3076, pp. 358–366. Springer, Heidelberg (2004)
Graham, R.L., Knuth, D.E., Patashnik, O.: Concrete Mathematics, 2nd edn. Addison-Wesley, London, UK (1994)
Yanagisawa, H.: A simple algorithm for lattice point counting in rational polygons. Research report, IBM Research, Tokyo Research Laboratory (August 2005)
Barvinok, A.I.: A polynomial time algorithm for counting integral points in polyhedra when the dimension is fixed. Mathematics of Operations Research 19(4), 769–779 (1994)
Beck, M., Robins, S.: Explicit and efficient formulas for the lattice point count in rational polygons using Dedekind–Rademacher sums. Discrete and Computational Geometry 27(4), 443–459 (2002)
Brent, R.P., van der Poorten, A.J., te Riele, H.: A comparative study of algorithms for computing continued fractions of algebraic numbers. In: Cohen, H. (ed.) Algorithmic Number Theory. LNCS, vol. 1122, pp. 35–47. Springer, Heidelberg (1996)
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 2007 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Pawlewicz, J. (2007). Order Statistics in the Farey Sequences in Sublinear Time. In: Arge, L., Hoffmann, M., Welzl, E. (eds) Algorithms – ESA 2007. ESA 2007. Lecture Notes in Computer Science, vol 4698. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-75520-3_21
Download citation
DOI: https://doi.org/10.1007/978-3-540-75520-3_21
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-75519-7
Online ISBN: 978-3-540-75520-3
eBook Packages: Computer ScienceComputer Science (R0)