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This tag is used if a reference is needed in a paper or textbook on a specific result.

11 votes

What is the Katz-Sarnak philosophy?

I do not know what is exactly the KS philosophy, or much number theory for that matter, but maybe I can tell you a few things. Take the Riemann zeta function, for instance. It was discovered by Montgo …
Marcel's user avatar
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9 votes
2 answers
763 views

Characters of orthogonal groups as symmetric functions

This question was asked on MSE some time ago, here, but got no attention. The Schur functions are characters of irreps of the unitary group, $s_\lambda(U)=Tr(R_\lambda(U))$. They are symmetric functio …
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8 votes

Advanced reference and roadmap about random matrices theory

The Oxford handbook of random matrix theory (Oxford University Press, 2011), edited by G. Akemann, J. Baik, P. Di Francesco, is an excellent reference, which covers a wide variety of properties and ap …
7 votes

Moments of the trace of orthogonal matrices

I am writing more than a year after the question was posted, only to spell out some more details regarding the calculation implicit in the solution presented by Suvrit, and to clarify the dependence o …
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6 votes
Accepted

Reference request: $\chi^{\lambda'}(\sigma) = (-1)^{n-\ell(\sigma)} \chi^\lambda(\sigma),$ f...

This is example 2 in page 116 of MacDonald's book, "Symmetric Functions and Hall Polynomials"
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5 votes
1 answer
296 views

Sum of skew characters over hooks and "odd" partitions

Let us call a partition odd if all its parts are odd, and let $Odd(n)$ be the set of all odd partitions of $n$, e.g. $Odd(6)=\{(5\,1),(3\, 3),(3\,1^3),(1^6)\}$. Let $H(n)$ denote the set of all hook …
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3 votes
Accepted

A question from Zeitouni's Introduction to Random Matrices

I think the essence is the central limit theorem. If you compute the traces of powers of your random matrix, they will be the sum of many independent random variables and will be Gaussian distributed …
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2 votes
0 answers
295 views

Magic squares as sums of permutation matrices

A magic square of size $n$ and sum $k$ is a $n\times n$ matrix with non-negative integer elements, whose rows and columns all sum to $k$. A permutation matrix is a magic square of sum $1$. Every magic …
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1 vote
Accepted

Automorphisms of partitions

Let $P(n,\alpha)$ be the set of partitions of $n$ with signature $\alpha$. Such a set is invariant under your group, and any permutation of its elements is an automorphism. Your group is just $$G=\Pi_ …
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