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Asymptotic freeness of independent Haar distributed unitary matrices was discovered by Voiculescu. Many refinements have been obtained, including strong asymptotic freeness of random unitaries and strong asymptotic freeness of random…

Probability · Mathematics 2024-07-16 Charles Bordenave , Benoit Collins

Let $U_n$ be an $n \times n$ Haar unitary matrix. In this paper, the asymptotic normality and independence of $\Tr U_n, \Tr U_n^2, ..., \Tr U_n^k$ are shown by using elementary methods. More generally, it is shown that the renormalized…

Probability · Mathematics 2007-05-23 Denes Petz , Julia Reffy

We show that Haar measures of connected semisimple groups, embedded via a representation into a matrix space, have a homogeneous asymptotic limit when viewed from far away and appropriately rescaled. This is still true if the Haar measure…

Representation Theory · Mathematics 2007-05-23 F. Maucourant

We study asymptotics of representations of the unitary groups U(n) in the limit as n tends to infinity and we show that in many aspects they behave like large random matrices. In particular, we prove that the highest weight of a random…

Representation Theory · Mathematics 2013-07-16 Benoit Collîns , Piotr Śniady

We provide an elementary proof for a theorem due to Petz and R\'effy which states that for a random $n\times n$ unitary matrix with distribution given by the Haar measure on the unitary group U(n), the upper left (or any other) $k\times k$…

Probability · Mathematics 2007-12-04 Christian Mastrodonato , Roderich Tumulka

We show that real second order freeness appears in the study of Haar unitary and unitarily invariant random matrices when transposes are also considered. In particular we obtain the unexpected result that a unitarily invariant random matrix…

Operator Algebras · Mathematics 2014-11-25 James A. Mingo , Mihai Popa

Following the ideas of Rosenbloom [7] and Hayman [5], Luis B\'aez-Duarte gives in [1] a probabilistic proof of Hardy-Ramanujan's asymptotic formula for the partitions of an integer. The main principle of the method relies on the convergence…

Number Theory · Mathematics 2013-07-25 Bernard Candelpergher , Michel Miniconi

In this paper, we pursue our study of asymptotic properties of families of random matrices that have a tensor structure. In previous work, the first- and second-named authors provided conditions under which tensor products of unitary random…

Probability · Mathematics 2023-10-25 Benoît Collins , Pierre Yves Gaudreau Lamarre , Camille Male

We consider the limiting distribution of $U_NA_NU_N^*$ and $B_N$ (and more general expressions), where $A_N$ and $B_N$ are $N \times N$ matrices with entries in a unital C$^*$-algebra $\mathcal B$ which have limiting $\mathcal B$-valued…

Operator Algebras · Mathematics 2009-12-21 Stephen Curran , Roland Speicher

We conjecture that the asymptotic behavior of the numbers of solid (three-dimensional) partitions is identical to the asymptotics of the three-dimensional MacMahon numbers. Evidence is provided by an exact enumeration of solid partitions of…

Statistical Mechanics · Physics 2012-02-10 Srivatsan Balakrishnan , Suresh Govindarajan , Naveen S. Prabhakar

We revisit the work of the first named author and using simpler algebraic arguments we calculate integrals of polynomial functions with respect to the Haar measure on the unitary group U(d). The previous result provided exact formulas only…

Mathematical Physics · Physics 2019-02-27 Benoit Collins , Piotr Sniady

In this paper, we are interested in sequences of q-tuple of N-by-N random matrices having a strong limiting distribution (i.e. given any non-commutative polynomial in the matrices and their conjugate transpose, its normalized trace and its…

Operator Algebras · Mathematics 2016-01-26 Benoit Collins , Camille Male

We consider the effect of a partial transpose on the limit $*$-distribution of a Haar distributed random unitary matrix. If we fix, $b$, the number of blocks, we show that the partial transpose can be decomposed into a sum of $b$ matrices…

Operator Algebras · Mathematics 2021-05-11 James A. Mingo , Mihai Popa , Kamil Szpojankowski

We demonstrate the asymptotic real second order freeness of Haar distributed orthogonal matrices and an independent ensemble of random matrices. Our main result states that if we have two independent ensembles of random matrices with a real…

Operator Algebras · Mathematics 2015-06-11 James A. Mingo , Mihai Popa

A fundamental result of free probability theory due to Voiculescu and subsequently refined by many authors states that conjugation by independent Haar-distributed random unitary matrices delivers asymptotic freeness. In this paper we…

Probability · Mathematics 2014-01-21 Greg W. Anderson , Brendan Farrell

An integer partition is called graphical if it is the degree sequence of a simple graph. We prove that the probability that a uniformly chosen partition of size $n$ is graphical decreases to zero faster than $n^{-.003}$, answering a…

Combinatorics · Mathematics 2020-03-31 Stephen Melczer , Marcus Michelen , Somabha Mukherjee

We study Haar unitary random matrices with permuted entries. For a sequence of permutations $\left(\sigma_N\right)_N$, where $\sigma_N$ acts on $N\times N$ matrices we identify conditions under which the $\ast$--distribution of permuted…

Probability · Mathematics 2021-02-23 James A. Mingo , Mihai Popa , Kamil Szpojankowski

Let $\Sigma_{g}$ be a closed surface of genus $g\geq 2$ and $\Gamma_{g}$ denote the fundamental group of $\Sigma_{g}$. We establish a generalization of Voiculescu's theorem on the asymptotic $*$-freeness of Haar unitary matrices from free…

Representation Theory · Mathematics 2025-06-11 Michael Magee

In this paper we study the asymptotic of multiplicities of irreducible representations in large tensor products of finite dimensional representations of simple Lie algebras and their statistics with respect to Plancherel and character…

Representation Theory · Mathematics 2019-10-23 Olga Postnova , Nicolai Reshetikhin

Let A_1,A_2,...,A_s be a finite sequence of (not necessarily disjoint, or even distinct) non-empty sets of positive integers satisfying a certain condition. It is shown that an independent family U_1,U_2,...,U_s of random NxN permutation…

Operator Algebras · Mathematics 2007-06-26 Mihail G. Neagu
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