New combinatorial identity for the set of partitions and limit theorems in finite free probability theory

Fuente: arXiv
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Hauptverfasser: Arizmendi, Octavio, Fujie, Katsunori, Ueda, Yuki
Format: Preprint
Veröffentlicht: 2023
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author Arizmendi, Octavio
Fujie, Katsunori
Ueda, Yuki
author_facet Arizmendi, Octavio
Fujie, Katsunori
Ueda, Yuki
contents We provide a refined combinatorial identity for the set of partitions of $\{1,\dots, n\}$, which plays an important role in investigating several limit theorems related to finite free convolutions. Firstly, we present the finite free analogue of Sakuma and Yoshida's limit theorem. That is, we provide the limit of $\{D_{1/m}((p_d^{\boxtimes_d m})^{\boxplus_d m})\}_{m\in \mathbb{N}}$ as $m\rightarrow\infty$ in two cases: (i) $m/d\rightarrow t$ for some $t>0$, or (ii) $m/d\rightarrow0$. The second application presents a central limit theorem for finite free multiplicative convolution. We establish a connection between this theorem and the multiplicative free semicircular distributions through combinatorial identities. Our last result gives alternative proofs for Kabluchko's limit theorems concerning the unitary Hermite and the Laguerre polynomials.
format Preprint
id arxiv_https___arxiv_org_abs_2303_01790
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle New combinatorial identity for the set of partitions and limit theorems in finite free probability theory
Arizmendi, Octavio
Fujie, Katsunori
Ueda, Yuki
Probability
Combinatorics
Operator Algebras
46L54, 05A18, 06A07
We provide a refined combinatorial identity for the set of partitions of $\{1,\dots, n\}$, which plays an important role in investigating several limit theorems related to finite free convolutions. Firstly, we present the finite free analogue of Sakuma and Yoshida's limit theorem. That is, we provide the limit of $\{D_{1/m}((p_d^{\boxtimes_d m})^{\boxplus_d m})\}_{m\in \mathbb{N}}$ as $m\rightarrow\infty$ in two cases: (i) $m/d\rightarrow t$ for some $t>0$, or (ii) $m/d\rightarrow0$. The second application presents a central limit theorem for finite free multiplicative convolution. We establish a connection between this theorem and the multiplicative free semicircular distributions through combinatorial identities. Our last result gives alternative proofs for Kabluchko's limit theorems concerning the unitary Hermite and the Laguerre polynomials.
title New combinatorial identity for the set of partitions and limit theorems in finite free probability theory
topic Probability
Combinatorics
Operator Algebras
46L54, 05A18, 06A07
url https://arxiv.org/abs/2303.01790