Results 21 to 30 of about 3,383,288 (169)

Dual Garside structure of braids and free cumulants of products [PDF]

open access: yes, 2014
We count the n-strand braids whose normal decomposition has length at most two in the dual braid monoid B_n+* by reducing the question to a computation of free cumulants for a product of independent variables, for which we establish a general formula.
Biane, Philippe, Dehornoy, Patrick
openaire   +5 more sources

Cumulant–Cumulant Relations in Free Probability Theory from Magnus’ Expansion [PDF]

open access: yesFoundations of Computational Mathematics, 2021
AbstractRelations between moments and cumulants play a central role in both classical and non-commutative probability theory. The latter allows for several distinct families of cumulants corresponding to different types of independences: free, Boolean and monotone. Relations among those cumulants have been studied recently.
Adrian Celestino   +3 more
openaire   +4 more sources

Boolean cumulants and subordination in free probability [PDF]

open access: yesRandom Matrices: Theory and Applications, 2020
Subordination is the basis of the analytic approach to free additive and multiplicative convolution. We extend this approach to a more general setting and prove that the conditional expectation [Formula: see text] for free random variables [Formula: see text] and a Borel function [Formula: see text] is a resolvent again.
Franz Lehner, Kamil Szpojankowski
openaire   +2 more sources

Free probability induced by electric resistance networks on energy Hilbert spaces [PDF]

open access: yesOpuscula Mathematica, 2011
We show that a class of countable weighted graphs arising in the study of electric resistance networks (ERNs) are naturally associated with groupoids.
Ilwoo Cho, Palle E. T. Jorgensen
doaj   +1 more source

Free probability on Hecke algebras and certain group C^{*}-algebras induced by Hecke algebras [PDF]

open access: yesOpuscula Mathematica, 2016
In this paper, by establishing free-probabilistic models on the Hecke algebras \(\mathcal{H}\left(GL_{2}(\mathbb{Q}_{p})\right)\) induced by \(p\)-adic number fields \(\mathbb{Q}_{p}\), we construct free probability spaces for all primes \(p\).
Ilwoo Cho
doaj   +1 more source

Certain group dynamical systems induced by Hecke algebras [PDF]

open access: yesOpuscula Mathematica, 2016
In this paper, we study dynamical systems induced by a certain group \(\mathfrak{T}_{N}^{K}\) embedded in the Hecke algebra \(\mathcal{H}(G_{p})\) induced by the generalized linear group \(G_{p} = GL_{2}(\mathbb{Q}_{p})\) over the \(p\)-adic number ...
Ilwoo Cho
doaj   +1 more source

Rank one HCIZ at high temperature: interpolating between classical and free convolutions

open access: yesSciPost Physics, 2022
We study the rank one Harish-Chandra-Itzykson-Zuber integral in the limit where $\frac{N \beta}{2} \to c $, called the high temperature regime and show that it can be used to construct a promising one-parameter interpolation, with parameter $c ...
Pierre Mergny, Marc Potters
doaj   +1 more source

${\epsilon}$ -Noncrossing Partitions and Cumulants in Free Probability [PDF]

open access: yesInternational Mathematics Research Notices, 2017
Motivated by recent work on mixtures of classical and free probabilities, we introduce and study the notion of $ε$-noncrossing partitions. It is shown that the set of such partitions forms a lattice, which interpolates as a poset between the poset of partitions and the one of noncrossing partitions.
Ebrahimi-Fard, Kurusch   +2 more
openaire   +2 more sources

Cumulants of the QCD topological charge distribution

open access: yesPhysics Letters B, 2015
The distribution of the QCD topological charge can be described by cumulants, with the lowest one being the topological susceptibility. The vacuum energy density in a θ-vacuum is the generating function for these cumulants.
Feng-Kun Guo, Ulf-G. Meißner
doaj   +1 more source

A New Look at the Coefficients of a Reciprocal Generating Function

open access: yesThe Scientific World Journal, 2014
We study a special property of free cumulants. We prove that coefficients of a reciprocal generating function correspond to “free cumulants with the first two elements in the same block.”
Wiktor Ejsmont
doaj   +1 more source

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