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Approximating the limiting quicksort distribution

TLDR
This work studies the convergence to the limiting distribution of the sequence of distributions obtained by iterating the transformation S, beginning with a (nearly) arbitrary starting distribution.
Abstract
The limiting distribution of the normalized number of comparisons used by Quicksort to sort an array of n numbers is known to be the unique fixed point with zero mean of a certain distributional transformation S. We study the convergence to the limiting distribution of the sequence of distributions obtained by iterating the transformation S, beginning with a (nearly) arbitrary starting distribution. We demonstrate geometrically fast convergence for various metrics and discuss some implications for numerical calculations of the limiting Quicksort distribution. Finally, we give companion lower bounds which show that the convergence is not faster than geometric. © 2001 John Wiley & Sons, Inc. Random Struct. Alg., 19: 376–406, 2001

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Book

Analytic Combinatorics

TL;DR: This text can be used as the basis for an advanced undergraduate or a graduate course on the subject, or for self-study, and is certain to become the definitive reference on the topic.
Journal ArticleDOI

Real and Complex Analysis. By W. Rudin. Pp. 412. 84s. 1966. (McGraw-Hill, New York.)

TL;DR: In this paper, the Riesz representation theorem is used to describe the regularity properties of Borel measures and their relation to the Radon-Nikodym theorem of continuous functions.
Journal ArticleDOI

Information ranking and power laws on trees

TL;DR: The asymptotic properties of the distribution of R that, in the context of PageRank, represents the frequencies of highly ranked pages are studied and the distributions of R and N are tail equivalent.
Journal ArticleDOI

Quicksort asymptotics

TL;DR: In this article, the first rates of convergence for the distribution of Yn to that of Y, using various metrics, were established for the d2-metric and the rate O(ne - (1/2)) for Kolmogorov-Smirnov distance, for any positive e.g.
Posted Content

Quicksort asymptotics

TL;DR: The first rates of convergence for the distribution of Yn to that of Y are provided, using various metrics, and the bound 2n-1/2 in the d2-metric is established and the rate O(ne - ( 1/2)) for Kolmogorov-Smirnov distance is established.
References
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Book

The Art of Computer Programming

TL;DR: The arrangement of this invention provides a strong vibration free hold-down mechanism while avoiding a large pressure drop to the flow of coolant fluid.
Book

Real and complex analysis

Walter Rudin
TL;DR: In this paper, the Riesz representation theorem is used to describe the regularity properties of Borel measures and their relation to the Radon-Nikodym theorem of continuous functions.