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We study the problem of maximum likelihood estimation for $3$-dimensional linear spaces of $3\times 3$ symmetric matrices from the point of view of algebraic statistics where we view these nets of conics as linear concentration or linear…

代数几何 · 数学 2021-05-31 Stefan Dye , Kathlén Kohn , Felix Rydell , Rainer Sinn

It is supposed that the exponential multiplier in the method of the non-equilibrium statistical operator (Zubarev`s approach) can be considered as a distribution density of the past lifetime of the system, and can be replaced by an…

统计力学 · 物理学 2009-10-26 V. V. Ryazanov

In this paper, three different proofs to a result of Wang, Peng and Yang (2013) which related to the joint mixability of elliptical distributions with the same characteristic generator are present. Moreover, we generalize this result to any…

统计理论 · 数学 2023-05-12 Chuancun Yin , Dan Zhu

Let $\a$ be a complex random variable with mean zero and bounded variance $\sigma^{2}$. Let $N_{n}$ be a random matrix of order $n$ with entries being i.i.d. copies of $\a$. Let $\lambda_{1}, ..., \lambda_{n}$ be the eigenvalues of…

概率论 · 数学 2008-02-29 Terence Tao , Van Vu

We initiate a study of the following problem: Given a continuous domain $\Omega$ along with its convex hull $\mathcal{K}$, a point $A \in \mathcal{K}$ and a prior measure $\mu$ on $\Omega$, find the probability density over $\Omega$ whose…

数据结构与算法 · 计算机科学 2020-04-17 Jonathan Leake , Nisheeth K. Vishnoi

Let $c$ be a positive constant. We show that if $r=\lfloor cn^{1/3}\rfloor$ and the members of ${[n]\choose r}$ are chosen sequentially at random to form an intersecting hypergraph then with limiting probability $(1+c^3)^{-1}$, as…

组合数学 · 数学 2016-05-26 Tom Bohman , Colin Cooper , Alan Frieze , Ryan R. Martin , Miklós Ruszinkó

Let $\mu$ be a probability measure in $\mathbb{C}$ with a continuous and compactly supported density function, let $z_1, \dots, z_n$ be independent random variables, $z_i \sim \mu$, and consider the random polynomial $$ p_n(z) =…

概率论 · 数学 2019-04-12 Stefan Steinerberger , Hau-tieng Wu

We consider the sum-of-digits functions $s_2$ and $s_3$ in bases $2$ and $3$. These functions just return the minimal numbers of powers of two (resp. three) needed in order to represent a nonnegative integer as their sum. A result of the…

数论 · 数学 2025-01-03 Michael Drmota , Lukas Spiegelhofer

We prove that any absolutely continuous probability measure on a high-dimensional linear space has low-dimensional marginals that are approximately spherically-symmetric.

泛函分析 · 数学 2009-07-09 Bo'az Klartag

We consider a one-dimensional discrete symmetric random walk with a reflecting boundary at the origin. Generating functions are found for the 2- dimensional probability distribution P{Sn = x,max1?j?n Sn = a} of being at position x after n…

概率论 · 数学 2013-05-27 Jerome K. Percus , Ora E. Percus

A family of sets is called $r$-\emph{cover free} if no set in the family is contained in the union of $r$ (or less) other sets in the family. A $1$-cover free family is simply an antichain with respect to set inclusion. Thus, Sperner's…

组合数学 · 数学 2020-11-10 Noga Alon , Shoni Gilboa , Shay Gueron

A marginal problem asks whether a given family of marginal distributions for some set of random variables arises from some joint distribution of these variables. Here we point out that the existence of such a joint distribution imposes…

信息论 · 计算机科学 2013-01-25 Tobias Fritz , Rafael Chaves

Given $A$ a set of $N$ positive integers, an old question in additive combinatorics asks that whether $A$ contains a sum-free subset of size at least $N/3+\omega(N)$ for some increasing unbounded function $\omega$. The question is generally…

组合数学 · 数学 2024-02-21 Yifan Jing , Shukun Wu

This paper introduces and characterizes a new family of continuous probability distributions applicable to norm distributions in three-dimensional random spaces, specifically for the Euclidean norm of three random Gaussian variables with…

信息论 · 计算机科学 2023-12-18 Seyed Mohammad Azimi-Abarghouyi

We show that if $A$ and $B$ are finite sets of real numbers, then the number of triples $(a,b,c)\in A\times B\times (A\cup B)$ with $a+b=2c$ is at most $(0.15+o(1))(|A|+|B|)^2$ as $|A|+|B|\to\infty$. As a corollary, if $A$ is antisymmetric…

数论 · 数学 2012-11-29 Vsevolod F. Lev , Rom Pinchasi

Given a compact subset $\Sigma$ of the real numbers obeying some technical conditions, we consider the set of algebraic integers whose conjugates all lie in $\Sigma$. The distribution of conjugates of such an integer defines a probability…

数论 · 数学 2024-03-19 Alexander Smith

This paper focuses on the problem of finding a distribution for an associated entropic vector in the entropy space nearest to a given, possibly non-entropic, target vector for random variables with a constraint on alphabet size. We show the…

信息论 · 计算机科学 2018-07-24 Sultan Alam , Satyajit Thakor , Syed Abbas

Relative entropy is a fundamental class of distances between probability distributions, with widespread applications in probability theory, statistics, and machine learning. In this work, we study relative entropy from a categorical…

计算机科学中的逻辑 · 计算机科学 2026-03-06 Ralph Sarkis , Fabio Zanasi

Maximum entropy distributions with discrete support in $m$ dimensions arise in machine learning, statistics, information theory, and theoretical computer science. While structural and computational properties of max-entropy distributions…

数据结构与算法 · 计算机科学 2019-06-04 Damian Straszak , Nisheeth K. Vishnoi

We adopt an empirical approach to the characterization of the distribution of twin primes within the set of primes, rather than in the set of all natural numbers. The occurrences of twin primes in any finite sequence of primes are like…

数论 · 数学 2007-05-23 P. F. Kelly , Terry Pilling