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We introduce the notion of operator-valued infinitesimal (OVI) independence for the Boolean and monotone cases. Then show that OVI Boolean (resp. monotone) independence is equivalent to the operator-valued Boolean (resp. monotone)…

Operator Algebras · Mathematics 2021-08-27 Daniel Perales , Pei-Lun Tseng

We consider the infinitesimal freeness in the operator-valued framework, and we show that the operator-valued infinitesimal (OVI) free independence is equivalent to the operator-valued free independence over an algebra of $2\times 2$ upper…

Operator Algebras · Mathematics 2023-08-22 Pei-Lun Tseng

We introduce a class of independence relations, which include free, Boolean and monotone independence, in operator valued probability. We show that this class of independence relations have a matricial extension property so that we can…

Operator Algebras · Mathematics 2018-09-21 Weihua Liu

In an infinitesimal probability space we consider operators which are infinitesimally free and one of which is infinitesimal, in that all its moments vanish. Many previously analysed random matrix models are captured by this framework. We…

Operator Algebras · Mathematics 2024-05-20 James A. Mingo , Pei-Lun Tseng

We investigate operator-valued monotone independence, a noncommutative version of independence for conditional expectation. First we introduce operator-valued monotone cumulants to clarify the whole theory and show the moment-cumulant…

Operator Algebras · Mathematics 2014-09-09 Takahiro Hasebe , Hayato Saigo

We use the theory of fully matricial, or non-commutative, functions to investigate infinite divisibility and limit theorems in operator-valued non-commutative probability. Our main result is an operator-valued analogue of the Bercovici-Pata…

Operator Algebras · Mathematics 2011-11-24 Serban T. Belinschi , Mihai Popa , Victor Vinnikov

We introduce a new kind of free independence, called real infinitesimal freeness. We show that independent orthogonally invariant with infinitesimal laws are asymptotically real infinitesimally free. We introduce new cumulants, called real…

Probability · Mathematics 2026-02-18 Guillaume Cébron , James A Mingo

In this paper, we introduce the notion of conditionally bi-free independence in an amalgamated setting. We define operator-valued conditionally bi-multiplicative pairs of functions and construct operator-valued conditionally bi-free moment…

Operator Algebras · Mathematics 2019-02-08 Yinzheng Gu , Paul Skoufranis

We study matrices whose entries are free or exchangeable noncommutative elements in some tracial $W^*$-probability space. More precisely, we consider operator-valued Wigner and Wishart matrices and prove quantitative convergence to…

Probability · Mathematics 2022-02-16 Marwa Banna , Guillaume Cébron

We prove an implicit function theorem and an inverse function theorem for free noncommutative functions over operator spaces and on the set of nilpotent matrices. We apply these results to study dependence of the solution of the initial…

Operator Algebras · Mathematics 2015-06-30 Gulnara Abduvalieva , Dmitry S. Kaliuzhnyi-Verbovetskyi

We define higher order infinitesimal noncommutative probability space and infinitesimal non-crossing cumulant functionals. In this framework, we generalize to higher order the notion of infinitesimal freeness, via a vanishing of mixed…

Operator Algebras · Mathematics 2010-09-14 Maxime Fevrier

It has been shown by Voiculescu and Biane that the analytic subordination property holds for free additive and multiplicative convolutions. In this paper, we present an operatorial approach to subordination for free multiplicative…

Operator Algebras · Mathematics 2009-10-22 Romuald Lenczewski

Let $M$ be a $B$-probability space. Assume that $B$ itself is a $D$-probability space; then $M$ can be viewed as $D$-probability space as well. Let $X$ be in $M$. We look at the question of relating the properties of $X$ as $B$-valued…

Operator Algebras · Mathematics 2007-05-23 Alexandru Nica , Dimitri Shlyakhtenko , Roland Speicher

We study $N$-ary non-commutative notions of independence, which are given by trees and which generalize free, Boolean, and monotone independence. For every rooted subtree $\mathcal{T}$ of the $N$-regular tree, we define the…

Operator Algebras · Mathematics 2020-04-14 David Jekel , Weihua Liu

The present paper introduces a modified version of cyclic-monotone independence which originally arose in the context of random matrices, and also introduces its natural analogy called cyclic-Boolean independence. We investigate formulas…

Probability · Mathematics 2024-05-31 Octavio Arizmendi , Takahiro Hasebe , Franz Lehner

We construct a complex entire function with arbitrary number of variables which has the following property: The infinite set consisting of all the values of all its partial derivatives of any orders at all algebraic points, including zero…

Number Theory · Mathematics 2022-08-04 Haruki Ide , Taka-aki Tanaka

In this article we introduce powerful tools and techniques from invariant theory to free analysis. This enables us to study free maps with involution. These maps are free noncommutative analogs of real analytic functions of several…

Rings and Algebras · Mathematics 2019-08-15 Igor Klep , Špela Špenko

We give an explicit description, via analytic subordination, of free multiplicative convolution of operator-valued distributions. In particular, the subordination function is obtained from an iteration process. This algorithm is easily…

Operator Algebras · Mathematics 2012-09-18 Serban T. Belinschi , Roland Speicher , John Treilhard , Carlos Vargas

This article, which is substantially motivated by the previous joint work with J. McKay [8], establishes the analytic analogues of the relations we found free probability has with Witt vectors. Therefore, we first present a novel analytic…

Probability · Mathematics 2018-03-12 Roland M. Friedrich

We provide Berry-Esseen bounds for sums of operator-valued Boolean and monotone independent variables, in terms of the first moments of the summands. Our bounds are on the level of Cauchy transforms as well as the L\'evy distance. As…

Probability · Mathematics 2022-11-16 Octavio Arizmendi , Marwa Banna , Pei-Lun Tseng
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