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We give lower bounds for the small moments of the sum of a random multiplicative function, which improve on some results of Bondarenko and Seip and constitute further progress towards (dis)proving a conjecture of Helson. We also prove…

数论 · 数学 2015-05-07 Adam J. Harper , Ashkan Nikeghbali , Maksym Radziwiłł

We study the problem of estimating the mean of a random vector $X$ given a sample of $N$ independent, identically distributed points. We introduce a new estimator that achieves a purely sub-Gaussian performance under the only condition that…

统计理论 · 数学 2017-02-03 Gábor Lugosi , Shahar Mendelson

Let $f$ be a Gaussian random field on $\mathbb{R}^d$ and let $X$ be the number of critical points of $f$ contained in a compact subset. A long-standing conjecture is that, under mild regularity and non-degeneracy conditions on $f$, the…

概率论 · 数学 2023-07-21 Louis Gass , Michele Stecconi

We study the nodal intersections number of random Gaussian toral Laplace eigenfunctions ("arithmetic random waves") against a fixed smooth reference curve. The expected intersection number is proportional to the the square root of the…

概率论 · 数学 2018-09-26 Maurizia Rossi , Igor Wigman

We calculate the discrete moments of the characteristic polynomial of a random unitary matrix, evaluated a small distance away from an eigenangle. Such results allow us to make conjectures about similar moments for the Riemann zeta…

数论 · 数学 2009-11-07 C. P. Hughes

We give a new heuristic for all of the main terms in the integral moments of various families of primitive L-functions. The results agree with previous conjectures for the leading order terms. Our conjectures also have an almost identical…

In this article, we study microscopic properties of a two-dimensional eigenvalue ensemble near a conical singularity arising from insertion of a point charge in the bulk of the support of eigenvalues. In particular, we characterize all…

数学物理 · 物理学 2021-09-01 Yacin Ameur , Nam-Gyu Kang , Seong-Mi Seo

We give a conjecture for the moments of the Dedekind zeta function of a Galois extension via the hybrid product method. The moments of the product of primes are evaluated using the Montgomery-Vaughan mean value theorem whilst for the…

数论 · 数学 2013-03-26 Winston Heap

We consider the problem of finding, for a given quadratic measure of non-uniformity of a set of $N$ points (such as $L_2$ star-discrepancy or diaphony), the asymptotic distribution of this discrepancy for truly random points in the limit…

计算物理 · 物理学 2009-10-30 Andre van Hameren , Ronald Kleiss , Jiri Hoogland

We propose a refined version of the existing conjectural asymptotic formula for the moments of the family of quadratic Dirichlet L-functions over rational function fields. Our prediction is motivated by two natural conjectures that provide…

数论 · 数学 2020-09-01 Adrian Diaconu , Henry Twiss

The main result of this paper is a bound on the distance between the distribution of an eigenfunction of the Laplacian on a compact Riemannian manifold and the Gaussian distribution. If $X$ is a random point on a manifold $M$ and $f$ is an…

谱理论 · 数学 2010-05-18 Elizabeth Meckes

We introduce the notion of a random relaxed asymptotic contraction in the setting of random normed modules. The contraction condition employs two quasi-metrics that are built directly from the random operator: a lower quasi-metric which…

泛函分析 · 数学 2026-05-07 Jie Shi

Certain extremum estimators have asymptotic distributions that are non-Gaussian, yet characterizable as the distribution of the $\argmax$ of a Gaussian process. This paper presents high-level sufficient conditions under which such…

计量经济学 · 经济学 2025-10-24 Matias D. Cattaneo , Gregory Fletcher Cox , Michael Jansson , Kenichi Nagasawa

We obtain exact formulas for moments and generating functions of the height function of the asymmetric simple exclusion process at one spatial point, starting from special initial data in which every positive even site is initially…

概率论 · 数学 2016-01-13 Janosch Ortmann , Jeremy Quastel , Daniel Remenik

We give an asymptotic formula for the $2k$th moment of a sum of multiplicative Steinhaus variables. This was recently computed independently by Harper, Nikeghbali and Radziwi\l\l. We also compute the $2k$th moment of a truncated…

数论 · 数学 2015-05-14 Winston Heap , Sofia Lindqvist

We establish a rigorous asymptotic theory for the joint estimation of roughness and scale parameters in two-dimensional Gaussian random fields with power-law generalized covariances \cite{Matheron1973, Stein1999, Yaglom1987}. Our main…

统计理论 · 数学 2025-10-31 Varun Kotharkar , Michael L. Stein

Using the classical estimation method of moments, we propose a new semiparametric estimation procedure for multi-parameter copula models. Consistency and asymptotic normality of the obtained estimators are established. By considering an…

统计方法学 · 统计学 2012-01-10 Brahim Brahimi , Abdelhakim Necir

We establish a new connection between moments of $n \times n$ random matrices $X_n$ and hypergeometric orthogonal polynomials. Specifically, we consider moments $\mathbb{E}\mathrm{Tr} X_n^{-s}$ as a function of the complex variable $s \in…

数学物理 · 物理学 2019-07-23 Fabio Deelan Cunden , Francesco Mezzadri , Neil O'Connell , Nick Simm

In this paper, we present a technically simple method to establish upper bounds on the expected injective norm of real and complex random tensors. Our approach is somewhat analogous to the moment method in random matrix theory, and is based…

概率论 · 数学 2026-03-03 Stephane Dartois , Benjamin McKenna

We prove that for any compact toric symplectic manifold, if a Hamiltonian diffeomorphism admits more fixed points, counted homologically, than the total Betti number, then it has infinitely many simple periodic points. This provides a vast…

辛几何 · 数学 2024-01-12 Shaoyun Bai , Guangbo Xu