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In this note, we prove a sharp large derivation principle (LDP) for the cubic nonlinear Schr\"odinger equation with Gaussian random initial data in Fourier Lebesgue spaces. As a consequence, we improve the exponential decay condition in…

偏微分方程分析 · 数学 2025-12-09 Rui Liang , Yuzhao Wang

This paper proposes a robust high-dimensional sparse canonical correlation analysis (CCA) method for investigating linear relationships between two high-dimensional random vectors, focusing on elliptical symmetric distributions. Traditional…

统计方法学 · 统计学 2025-04-18 Chengde Qian , Yanhong Liu , Long Feng

In this paper, we give sharp Rusak- and Markov-type inequalities for rational functions on several intervals when the system of intervals is a \textquotedblleft rational function inverse image\textquotedblright\, of an interval and those…

复变函数 · 数学 2015-06-23 M. A. Akturk , A. Lukashov

The upsilon distribution, the sum of independent chi random variates and a normal, is introduced. As a special case, the upsilon distribution includes Lecoutre's lambda-prime distribution. The upsilon distribution finds application in…

统计金融 · 定量金融 2021-08-17 Steven E. Pav

Covariance regression offers an effective way to model the large covariance matrix with the auxiliary similarity matrices. In this work, we propose a sparse covariance regression (SCR) approach to handle the potentially high-dimensional…

统计方法学 · 统计学 2024-10-17 Yuan Gao , Zhiyuan Zhang , Zhanrui Cai , Xuening Zhu , Tao Zou , Hansheng Wang

The sample correlation coefficient $R$ plays an important role in many statistical analyses. We study the moments of $R$ under the bivariate Gaussian model assumption, provide a novel approximation for its finite sample mean and connect it…

统计理论 · 数学 2024-01-23 Daniel Salnikov

In this paper we derive a Large Deviation Principle (LDP) for inhomogeneous U/V-statistics of a general order. Using this, we derive a LDP for two types of statistics: random multilinear forms, and number of monochromatic copies of a…

概率论 · 数学 2026-04-01 Sohom Bhattacharya , Nabarun Deb , Sumit Mukherjee

We study the friction coefficient of a macroscopic sphere in a viscous fluid at low Reynolds number. First, Kirkwood's formula for the friction coefficient is reviewed on the basis of the Hamiltonian description of particle systems.…

统计力学 · 物理学 2015-10-13 Masato Itami , Shin-ichi Sasa

We establish noncommutative analogs of some well-known large deviation inequalities for noncommutative random variables. Firstly, for the noncommutative independent case, we characterize the uniformly exponential integrability of random…

算子代数 · 数学 2026-04-08 Yong Jiao , Sijie Luo , Dejian Zhou

We prove $l^p$-improving estimates for the averaging operator along the discrete paraboloid in the sharp range of $p$ in all dimensions $n\ge 2$.

经典分析与常微分方程 · 数学 2020-02-28 Shival Dasu , Ciprian Demeter , Bartosz Langowski

This paper illustrates the use of selected robust estimators of covariance or correlation in the identification of anomalous laboratory results in inter-laboratory data. It is shown that robust estimators can substantially reduce the impact…

应用统计 · 统计学 2019-05-29 Stephen L R Ellison

Using 1000 ray-tracing simulations for a {\Lambda}-dominated cold dark model in Sato et al. (2009), we study the covariance matrix of cosmic shear correlation functions, which is the standard statistics used in the previous measurements.…

宇宙学与河外天体物理 · 物理学 2015-05-19 Masanori Sato , Masahiro Takada , Takashi Hamana , Takahiko Matsubara

The prospect of using lambda-proton correlations to extract source sizes in relativistic heavy ion collisions is investigated. It is found that the strong interaction induces a large peak in the correlation function that provides more…

核理论 · 物理学 2014-11-18 Fuqiang Wang , Scott Pratt

We evaluate the coefficients of the effective chiral Lagrangian to $O(p^4)$ in the strong coupling, large-N expansion. In this limit we explicitly perform the functional integral over fundamental degrees of freedom and obtain the effective…

高能物理 - 格点 · 物理学 2009-10-22 Stanley Myint , Claudio Rebbi

We review some results about quantitative improvements of sharp inequalities for eigenvalues of the Laplacian.

谱理论 · 数学 2016-04-19 Lorenzo Brasco , Guido De Philippis

The magnitude of Pearson correlation between two scalar random variables can be visually judged from the two-dimensional scatter plot of an independent and identically distributed sample drawn from the joint distribution of the two…

统计方法学 · 统计学 2023-03-14 Shanjun Mao , Xiaodan Fan , Jie Hu

We study Gauss curvature for random Riemannian metrics on a compact surface, lying in a fixed conformal class; our questions are motivated by comparison geometry. Next, analogous questions are considered for the scalar curvature in…

微分几何 · 数学 2011-01-04 Yaiza Canzani , Dmitry Jakobson , Igor Wigman

We establish a large-deviations principle for the largest eigenvalue of a generalized sample covariance matrix, meaning a matrix proportional to $Z^T \Gamma Z$, where $Z$ has i.i.d. real or complex entries and $\Gamma$ is not necessarily…

概率论 · 数学 2023-02-07 Jonathan Husson , Benjamin McKenna

Large deviation principles and related results are given for a class of Markov chains associated to the "leaves" in random recursive trees and preferential attachment random graphs, as well as the "cherries" in Yule trees. In particular,…

概率论 · 数学 2010-01-22 W. Bryc , D. Minda , S. Sethuraman

We obtain sharp fractional Hardy inequalities for the half-space and for convex domains. We extend the results of Bogdan and Dyda and of Loss and Sloane to the setting of Sobolev-Bregman forms.

偏微分方程分析 · 数学 2026-01-05 Michał Kijaczko , Julia Lenczewska