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By an easy trick taken from caloric polynomial theory we construct a family $\mathscr{B}$ of $almost\ regular$ domains for the caloric Dirichlet problem. $\mathscr{B}$ is a basis of the Euclidean topology. This allows to build, with a…

偏微分方程分析 · 数学 2021-06-22 Alessia E. Kogoj , Ermanno Lanconelli

We study a charged Brownian gas with a non uniform bath temperature, and present a thermohydrodynamical picture. Expansion on the collision time probes the validity of the local equilibrium approach and the relevant thermodynamical…

统计力学 · 物理学 2007-05-23 L. A. Barreiro , J. R. Campanha , R. E. Lagos

We discuss the structure and asymptotic long-time properties of coupled equations for the moments of a Brownian particle's momentum derived microscopically beyond the lowest approximation in the weak coupling parameter. Generalized…

统计力学 · 物理学 2015-05-30 A. V. Plyukhin

We derive explicit formulas for probabilities of Brownian motion with jumps crossing linear or piecewise linear boundaries in any finite interval. We then use these formulas to approximate the boundary crossing probabilities for general…

概率论 · 数学 2012-05-16 Jinghai Shao , Liqun Wang

Boundary value problems for integrable nonlinear evolution PDEs formulated on the half-line can be analyzed by the unified method introduced by one of the authors and used extensively in the literature. The implementation of this general…

偏微分方程分析 · 数学 2015-05-30 A. S. Fokas , J. Lenells

We consider the problem of testing for the presence of linear relationships between large sets of random variables based on a post-selection inference approach to canonical correlation analysis. The challenge is to adjust for the selection…

统计方法学 · 统计学 2020-10-20 Ian W. McKeague , Xin Zhang

We revisit the method of Carleman linearization for systems of ordinary differential equations with polynomial right-hand sides. This transformation provides an approximate linearization in a higher-dimensional space through the exact…

数值分析 · 数学 2017-11-08 Marcelo Forets , Amaury Pouly

Given an Euclidean space, this paper elucidates the topological link between the partial derivatives of the Minkowski functional associated to a set (assumed to be compact, convex, with a differentiable boundary and a non-empty interior)…

微分几何 · 数学 2024-07-18 Gustave Bainier , Benoit Marx , Jean-Christophe Ponsart

This paper is concerned with a mean-field linear quadratic (LQ, for short) optimal control problem with deterministic coefficients. It is shown that convexity of the cost functional is necessary for the finiteness of the mean-field LQ…

最优化与控制 · 数学 2015-09-16 Jingrui Sun

The question how the extremal values of a stochastic process achieved on different time intervals are correlated to each other has been discussed within the last few years on examples of the running maximum of a Brownian motion, of a…

统计力学 · 物理学 2019-09-04 Brandon Annesi , Enzo Marinari , Gleb Oshanin

For one-dimensional linear kinetic equations analytical solutions of problems about moderately strong evaporation (condensation), when frequency of collisions of molecules is constant, are received . The equation and distribution function…

数学物理 · 物理学 2014-06-18 A. V. Latyshev , A. A. Yushkanov

We investigate connections between pairs of (pseudo-)Riemannian metrics whose sum is a (tensor) product of a covector field with itself. A bijective mapping between the classes of Euclidean and Lorentzian metrics is constructed as a special…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Bozhidar Z. Iliev

We explore connections between the approach of solving the rational interpolation problem via resolutions of ideals and syzygies with the standard method provided by the Extended Euclidean Algorithm. As a consequence, we obtain explicit…

交换代数 · 数学 2019-10-24 Teresa Cortadellas Benitez , Carlos D'Andrea , Eulalia Montoro

A well-known result with respect to the one dimensional nearest-neighbor symmetric simple exclusion process is the convergence to fractional Brownian motion with Hurst parameter 1/4, in the sense of finite-dimensional distributions, of the…

概率论 · 数学 2007-11-02 Magda Peligrad , Sunder Sethuraman

We analyse the relationship between the full additivity of the entanglement cost and its full monotonicity under local operations and classical communication. We show that the two properties are equivalent for the entanglement cost. The…

We study a generalization of the Brownian bridge as a stochastic process that models the position and velocity of inertial particles between the two end-points of a time interval. The particles experience random acceleration and are assumed…

系统与控制 · 计算机科学 2014-07-15 Yongxin Chen , Tryphon Georgiou

In this paper, we study the optimal transport problem induced by separable cost functions. In this framework, transportation can be expressed as the composition of two lower-dimensional movements. Through this reformulation, we prove that…

最优化与控制 · 数学 2021-05-18 Gennaro Auricchio

The thermodynamic uncertainty relation expresses a seemingly universal trade-off between the cost for driving an autonomous system and precision in any output observable. It has so far been proven for discrete systems and for overdamped…

统计力学 · 物理学 2022-04-05 Patrick Pietzonka

We address an optimization problem where the cost function is the expectation of a random mapping. To tackle the problem two approaches based on the approximation of the objective function by consensus-based particle optimization methods on…

最优化与控制 · 数学 2025-11-24 Sabrina Bonandin , Michael Herty

We present a collection of explicit diffusion approximations to small temperature Schr\"{o}dinger bridges on manifolds. Our most precise results are when both marginals are the same and the Schr\"{o}dinger bridge is on a manifold with a…

概率论 · 数学 2025-12-23 Garrett Mulcahy , Soumik Pal