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Main Authors: Adiceam, Faustin, Robertson, Steven, Shirandami, Victor, Tsokanos, Ioannis
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2403.18110
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author Adiceam, Faustin
Robertson, Steven
Shirandami, Victor
Tsokanos, Ioannis
author_facet Adiceam, Faustin
Robertson, Steven
Shirandami, Victor
Tsokanos, Ioannis
contents The Josephus problem is a well--studied elimination problem consisting in determining the position of the survivor after repeated applications of a deterministic rule removing one person at a time from a given group. A natural probabilistic variant of this process is introduced in this paper. More precisely, in this variant, the survivor is determined after performing a succession of Bernouilli trials with parameter $p$ designating each time the person to remove. When the number of participants tends to infinity, the main result characterises the limit distribution of the position of the survivor with an increasing degree of precision as the parameter approaches the unbiaised case $p=1/2$. Then, the convergence rate to the position of the survivor is obtained in the form of a Central-Limit Theorem. A number of other variants of the suggested probabilistic elimination process are also considered. They each admit a specific limit behavior which, in most cases, is stated in the form of an open problem.
format Preprint
id arxiv_https___arxiv_org_abs_2403_18110
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Randomisation in the Josephus Problem
Adiceam, Faustin
Robertson, Steven
Shirandami, Victor
Tsokanos, Ioannis
Probability
Combinatorics
Number Theory
The Josephus problem is a well--studied elimination problem consisting in determining the position of the survivor after repeated applications of a deterministic rule removing one person at a time from a given group. A natural probabilistic variant of this process is introduced in this paper. More precisely, in this variant, the survivor is determined after performing a succession of Bernouilli trials with parameter $p$ designating each time the person to remove. When the number of participants tends to infinity, the main result characterises the limit distribution of the position of the survivor with an increasing degree of precision as the parameter approaches the unbiaised case $p=1/2$. Then, the convergence rate to the position of the survivor is obtained in the form of a Central-Limit Theorem. A number of other variants of the suggested probabilistic elimination process are also considered. They each admit a specific limit behavior which, in most cases, is stated in the form of an open problem.
title Randomisation in the Josephus Problem
topic Probability
Combinatorics
Number Theory
url https://arxiv.org/abs/2403.18110