On the Tails of the Limiting QuickSort Density

Authors James Allen Fill, Wei-Chun Hung



PDF
Thumbnail PDF

File

LIPIcs.AofA.2018.21.pdf
  • Filesize: 346 kB
  • 10 pages

Document Identifiers

Author Details

James Allen Fill
  • Department of Applied Mathematics and Statistics, The Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218-2682, USA
Wei-Chun Hung
  • Department of Applied Mathematics and Statistics, The Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218-2682, USA

Cite As Get BibTex

James Allen Fill and Wei-Chun Hung. On the Tails of the Limiting QuickSort Density. In 29th International Conference on Probabilistic, Combinatorial and Asymptotic Methods for the Analysis of Algorithms (AofA 2018). Leibniz International Proceedings in Informatics (LIPIcs), Volume 110, pp. 21:1-21:10, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018) https://doi.org/10.4230/LIPIcs.AofA.2018.21

Abstract

We give upper and lower asymptotic bounds for the left tail and for the right tail of the continuous limiting QuickSort density f that are nearly matching in each tail. The bounds strengthen results from a paper of Svante Janson (2015) concerning the corresponding distribution function F. Furthermore, we obtain similar upper bounds on absolute values of derivatives of f of each order.

Subject Classification

ACM Subject Classification
  • Theory of computation → Sorting and searching
  • Mathematics of computing → Distribution functions
Keywords
  • Quicksort
  • density tails
  • asymptotic bounds
  • Landau-Kolmogorov inequality

Metrics

  • Access Statistics
  • Total Accesses (updated on a weekly basis)
    0
    PDF Downloads

References

  1. James Allen Fill and Svante Janson. A characterization of the set of fixed points of the Quicksort transformation. Electron. Comm. Probab., 5:77-84, 2000. URL: http://dx.doi.org/10.1214/ECP.v5-1021.
  2. James Allen Fill and Svante Janson. Smoothness and decay properties of the limiting quicksort density function. Mathematics and Computer Science: Algorithms, Trees, Combinatorics and Probabilities, Trends in Mathematics, pages 53-64, 2000. Google Scholar
  3. Svante Janson. On the tails of the limiting quicksort distribution. Electronic Communications in Probability, 20, 2015. Google Scholar
  4. Charles Knessl and Wojciech Szpankowski. Quicksort algorithm again revisited. Discrete Mathematics and Theoretical Computer Science, 3(2), 1999. Google Scholar
  5. A. P. Matorin. On inequalities between the maxima of the absolute values of a function and its derivatives on a half-line. Ukrain. Mat. Ž., 7:262-266, 1955. Google Scholar
  6. D. S. Mitrinović, J. E. Pečarić, and A. M. Fink. Inequalities involving functions and their integrals and derivatives, volume 53 of Mathematics and its Applications (East European Series). Kluwer Academic Publishers Group, Dordrecht, 1991. URL: http://dx.doi.org/10.1007/978-94-011-3562-7.
  7. Mireille Régnier. A limiting distribution for quicksort. RAIRO-Theoretical Informatics and Applications, 23(3):335-343, 1989. Google Scholar
  8. Uwe Rösler. A limit theorem for "quicksort". RAIRO-Theoretical Informatics and Applications, 25(1):85-100, 1991. Google Scholar
  9. Sergei Borisovich Stechkin. Inequalities between the upper bounds of the derivatives of an arbitrary function on the half-line. Mathematical notes of the Academy of Sciences of the USSR, 1(6):442-447, 1967. Google Scholar
Questions / Remarks / Feedback
X

Feedback for Dagstuhl Publishing


Thanks for your feedback!

Feedback submitted

Could not send message

Please try again later or send an E-mail