The Free Tangent Law

Fuente: arXiv
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Main Authors: Ejsmont, Wiktor, Lehner, Franz
Format: Preprint
Published: 2020
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author Ejsmont, Wiktor
Lehner, Franz
author_facet Ejsmont, Wiktor
Lehner, Franz
contents Nevanlinna-Herglotz functions play a fundamental role for the study of infinitely divisible distributions in free probability. In the present paper we study the role of the tangent function, which is a fundamental Herglotz-Nevanlinna function and related functions in free probability. To be specific, we show that the function $$ \frac{\tan z}{1-x\tan z} $$ of Carlitz and Scoville describes the limit distribution of sums of free commutators and anticommutators and thus the free cumulants are given by the Euler zigzag numbers.
format Preprint
id arxiv_https___arxiv_org_abs_2004_02679
institution arXiv
publishDate 2020
record_format arxiv
spellingShingle The Free Tangent Law
Ejsmont, Wiktor
Lehner, Franz
Operator Algebras
Combinatorics
Probability
Primary: 46L54, Secondary: 11B68, 60F05
Nevanlinna-Herglotz functions play a fundamental role for the study of infinitely divisible distributions in free probability. In the present paper we study the role of the tangent function, which is a fundamental Herglotz-Nevanlinna function and related functions in free probability. To be specific, we show that the function $$ \frac{\tan z}{1-x\tan z} $$ of Carlitz and Scoville describes the limit distribution of sums of free commutators and anticommutators and thus the free cumulants are given by the Euler zigzag numbers.
title The Free Tangent Law
topic Operator Algebras
Combinatorics
Probability
Primary: 46L54, Secondary: 11B68, 60F05
url https://arxiv.org/abs/2004.02679