Infinite divisibility of $α$-Cauchy distributions

Fuente: arXiv
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Autor principal: Wang, Min
Formato: Preprint
Publicado: 2025
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author Wang, Min
author_facet Wang, Min
contents In 2009, Yano, Yano and Yor proposed the question of studying the infinite divisibility of the $α$-Cauchy variable $\mathcal{C}_α$ for $α> 1$. The particular case $\mathcal{C}_2$ is the well-known standard Cauchy variable, which is infinitely divisible and indeed stable. For $α\neq 2$, the infinite divisibility of $\mathcal{C}_α$ is previously unknown. In this paper, we prove that $\mathcal{C}_α$ is infinitely divisible if and only if $1 < α\leq 2$.
format Preprint
id arxiv_https___arxiv_org_abs_2512_23164
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Infinite divisibility of $α$-Cauchy distributions
Wang, Min
Probability
60E07, 60E05, 60E10, 33E12
In 2009, Yano, Yano and Yor proposed the question of studying the infinite divisibility of the $α$-Cauchy variable $\mathcal{C}_α$ for $α> 1$. The particular case $\mathcal{C}_2$ is the well-known standard Cauchy variable, which is infinitely divisible and indeed stable. For $α\neq 2$, the infinite divisibility of $\mathcal{C}_α$ is previously unknown. In this paper, we prove that $\mathcal{C}_α$ is infinitely divisible if and only if $1 < α\leq 2$.
title Infinite divisibility of $α$-Cauchy distributions
topic Probability
60E07, 60E05, 60E10, 33E12
url https://arxiv.org/abs/2512.23164