arXiv subjects

William Verreault

Publications and source records attributed to William Verreault.

21 records · Page 2Linked to original sources

arXiv2021

On the probability of forming polygons from a broken stick

Break a stick at random at $n-1$ points to obtain $n$ pieces. We give an explicit formula for the probability that every choice of $k$ segments from this broken stick can form a $k$-gon, generalizing similar work. The method we use can be applied to other geometric probability problems involving broken sticks, which are part of a long-standing class of recreational probability problems with several applications to real-world models.

math.PR↗

arXiv2021

Repetitions of multinomial coefficients and a generalization of Singmaster's conjecture

Given two integers $k\geq 2$ and $a>1$, let $N_k(a)$ stand for the number of multinomial coefficients, with $k$ terms, equal to $a$. We study the behavior of $N_k(a)$ and show that its average and normal orders are equal to $k(k-1)$. We also prove that $N_k(a)=O\left((\log a/\log\log a)^{k-1}\right)$ and make several propositions about extreme results regarding large values of $N_k(a)$.

math.NT↗

arXiv2021

Bounds for the counting function of the Jordan-Pólya numbers

A positive integer $n$ is said to be a Jordan-Pólya number if it can be written as a product of factorials. We obtain non-trivial lower and upper bounds for the number of Jordan-Pólya numbers not exceeding a given number $x$.

math.NT↗