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We obtain exact formulas for the absolute raw and central moments of the variance-gamma distribution, as infinite series involving the modified Bessel function of the second kind and the modified Lommel function of the first kind. When the…

概率论 · 数学 2024-09-10 Robert E. Gaunt

Mixture distributions provide a versatile and widely used framework for modeling random phenomena, and are particularly well-suited to the analysis of geoscientific processes and their attendant risks to society. For continuous mixtures of…

机器学习 · 统计学 2025-06-18 Michael R. Powers , Jiaxin Xu

We study the probability distribution function of the long-time values of observables being time-evolved by Hamiltonians modeling clean and disordered one-dimensional chains of many spin-1/2 particles. In particular, we analyze the return…

无序系统与神经网络 · 物理学 2023-10-10 I. Vallejo-Fabila , E. Jonathan Torres-Herrera

We consider analytic continuations of Fourier transforms and Stieltjes transforms. This enables us to define what we call complex moments for some class of probability measures which do not have moments in the usual sense. There are two…

概率论 · 数学 2013-12-04 Takahiro Hasebe

This study reports on the evolution of the probability distribution in the configuration space of the two-dimensional Toda system. The distribution is characterized by singularities, which predominantly take two forms: double-cusped…

可精确求解与可积系统 · 物理学 2025-03-18 Srdjan Petrovic , Nikola Starcevic , Nace Stojanov , Liang Huang

The (strong and weak) well-posedness is proved for singular SDEs depending on the distribution density point-wisely and globally, where the drift satisfies a local integrability condition in time-spatial variables, and is Lipschitz…

概率论 · 数学 2023-09-11 Feng-Yu Wang

Classical Stieltjes Transform is modified in a way to generalize both Stieltjes and Fourier transforms. This transform allows to intro- duce new classes of commutative and non-commutative generalized convolutions. Key words: Stieltjes…

概率论 · 数学 2016-10-04 Lev B Klebanov , Rasool Roozegar

It is shown that the density of the ratio of two random variables with the same variance and joint Gaussian density satisfies a non stationary diffusion equation. Implications of this result for kernel density estimation of the condensed…

统计理论 · 数学 2012-05-03 Piero Barone

The Dantzig selector (Candes and Tao, 2007) is a popular l1-regularization method for variable selection and estimation in linear regression. We present a very weak geometric condition on the observed predictors which is related to…

统计理论 · 数学 2012-06-06 Lee Dicker , Xihong Lin

We introduce a transformation of linear Pfaffian systems, which we call the middle Laplace transform, as a formulation of the Laplace transform from the perspective of Katz theory. While the definition of the middle Laplace transform is…

经典分析与常微分方程 · 数学 2026-05-13 Shunya Adachi

The generalized Stieltjes transform (GST) is an integral transform that depends on a parameter $\rho > 0$. In previous work a convenient form of the inverse transformation was derived for the case $\rho = 3/2$. This paper generalizes that…

数学物理 · 物理学 2009-11-10 John H. Schwarz

Doubly-intractable distributions appear naturally as posterior distributions in Bayesian inference frameworks whenever the likelihood contains a normalizing function $Z$. Having two such functions $Z$ and $\widetilde Z$ we provide estimates…

统计理论 · 数学 2020-08-13 Michael Habeck , Daniel Rudolf , Björn Sprungk

A two-type continuous-state branching process in varying environments is constructed as the pathwise unique solution of a system of stochastic equations driven by time-space noises, where the pathwise uniqueness is derived from a comparison…

概率论 · 数学 2025-02-07 Zenghu Li , Junyan Zhang

As a part of our works on effective properties of probability distributions, we deal with the corresponding characteristic functions. A sequence of probability distributions is computable if and only if the corresponding sequence of…

计算复杂性 · 计算机科学 2015-07-01 Takakazu Mori , Yoshiki Tsujii , Mariko Yasugi

This article investigates the unique determination of a radial refractive index n from spectral data. First, we demonstrate that for piecewise twice continuously differentiable functions, n is not uniquely determined by the special…

偏微分方程分析 · 数学 2026-01-19 Kewen Bu , Youjun Deng , Yan Jiang , Kai Zhang

The Johnson--Lindenstrauss (JL) lemma is a powerful tool for dimensionality reduction in modern algorithm design. The lemma states that any set of high-dimensional points in a Euclidean space can be flattened to lower dimensions while…

概率论 · 数学 2024-11-08 Kwassi Joseph Dzahini , Stefan M. Wild

Using a probabilistic approach, we derive some interesting combinatorial identities involving gamma and beta functions. These results generalize certain well-known combinatorial identities involving binomial coefficients and special…

概率论 · 数学 2026-05-15 Palaniappan Vellaisamy , Puja Pandey

The Laplace transforms of the transition probability density and distribution functions for the Ornstein-Uhlenbeck process contain the product of two parabolic cylinder functions, namely D_{v}(x)D_{v}(y) and D_{v}(x)D_{v-1}(y),…

数学物理 · 物理学 2015-08-06 Dirk Veestraeten

The paper considers the distribution of a general linear combination of central and non-central chi-square random variables by exploring the branch cut regions that appear in the standard Laplace inversion process. Due to the original…

统计计算 · 统计学 2023-05-15 Alfred Kume , Tomonari Sei , Andrew T. A. Wood

We study two nonparametric tests of the hypothesis that a sequence of independent observations is identically distributed against the alternative that at a single change point the distribution changes. The tests are based on the Cramer-von…

统计理论 · 数学 2020-10-15 Rasmus Erlemann , Richard Lockhart , Rihan Yao