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We consider a discrete-time system of n coupled random vectors, a.k.a. interacting particles. The dynamics involve a vanishing step size, some random centered perturbations, and a mean vector field which induces the coupling between the…

概率论 · 数学 2025-06-09 Pascal Bianchi , Walid Hachem , Victor Priser

We study a stochastic system of $N$ interacting particles which models bimolecular chemical reaction-diffusion. In this model, each particle $i$ carries two attributes: the spatial location $X_t^i\in \mathbb{T}^d$, and the type $\Xi_t^i\in…

偏微分方程分析 · 数学 2020-01-24 Tau Shean Lim , Yulong Lu , James Nolen

We introduce and analyze a class of interacting particle systems on the real line that combine features of the stochastic rat race and (deterministic) follow-the-leader models. The particle system evolves as a continuous-time pure jump…

概率论 · 数学 2026-01-07 Sayan Banerjee , Amarjit Budhiraja , Dilshad Imon

We study a stochastic Hamiltonian system of $N$ particles with many particles interacting through a potential whose range is large in comparison with the typical distance between neighbouring particles. It is shown that the empirical…

偏微分方程分析 · 数学 2025-03-18 Jesus Correa , Christian Olivera

We consider a toy model of two kinetically coupled stochastic oscillators whose dynamics is described as a Markov jump process among $N$ discrete phase states. For large $N$, it maps onto the deterministic two-oscillator Kuramoto model of…

统计力学 · 物理学 2026-03-24 Maciej Chudak , Massimiliano Esposito , Krzysztof Ptaszynski

We consider systems of agents interacting through topological interactions. These have been shown to play an important part in animal andhuman behavior. Precisely, the system consists of a finite number of particles characterized by their…

数学物理 · 物理学 2017-11-22 Adrien Blanchet , Pierre Degond

In this work we present a general derivation of the non-Fickian behavior for the self-diffusion of identically interacting particle systems with excluded mutual passage. We show that the conditional probability distribution of finding a…

统计力学 · 物理学 2009-11-07 Markus Kollmann

We study a system of particles moving on a line in the same direction. Passing is allowed and when a fast particle overtakes a slow particle, it acquires a new velocity drawn from a distribution P_0(v), while the slow particle remains…

统计力学 · 物理学 2009-10-31 I. Ispolatov , P. L. Krapivsky

In this work we study a kinetic model of active particles with delayed dynamics, and its limit when the number of particles goes to infinity. This limit turns out to be related to delayed differential equations with random initial…

偏微分方程分析 · 数学 2020-06-17 Juan Pablo Pinasco , Mauro Rodriguez Cartabia , Nicolas Saintier

We study long time behavior of a discrete time weakly interacting particle system, and the corresponding nonlinear Markov process in $\mathbb{R}^d$, described in terms of a general stochastic evolution equation. In a setting where the state…

概率论 · 数学 2014-01-16 Amarjit Budhiraja , Abhishek Pal Majumder

We apply a recently proposed novel thermostating mechanism to an interacting many-particle system where the bulk particles are moving according to Hamiltonian dynamics. At the boundaries the system is thermalized by deterministic and…

chao-dyn · 物理学 2009-10-31 C. Wagner , R. Klages , G. Nicolis

We study a general class of interacting particle systems over a countable state space $V$ where on each site $x \in V$ the particle mass $\eta(x) \geq 0$ follows a stochastic differential equation. We construct the corresponding Markovian…

概率论 · 数学 2023-08-16 Viktor Bezborodov , Luca Di Persio , Martin Friesen , Peter Kuchling

We study the large-time behaviour of Brownian particles moving through a viscous medium in a confined potential, and which are further subjected to position-dependent driving forces that are periodic in time. We focus on the case where…

统计力学 · 物理学 2009-11-10 Sreedhar B. Dutta , Mustansir Barma

We continue the study of the time synchronization model from arXiv:1201.2141 . There are two types $i=1,2$ of particles on the line $R$, with $N_{i}$ particles of type $i$. Each particle of type $i$ moves with constant velocity $v_{i}$.…

数学物理 · 物理学 2012-01-18 Vadim Malyshev , Anatoly Manita

We investigate time evolution of prepared vibrational state (system) coupled to a reservoir with dense spectrum of its vibrational states. We assume that the reservoir has an equidistant spectrum, and the system - reservoir coupling matrix…

统计力学 · 物理学 2009-11-13 V. A. Benderskii , L. A. Falkovsky , E. I. Kats

We study a stochastic particle system which models the time evolution of the ranking of books by online bookstores (e.g., Amazon). In this system, particles are lined in a queue. Each particle jumps at random jump times to the top of the…

概率论 · 数学 2009-08-22 Kumiko Hattori , Tetsuya Hattori

Growth-fragmentation processes model systems of cells that grow continuously over time and then fragment into smaller pieces. Typically, on average, the number of cells in the system exhibits asynchronous exponential growth and, upon…

概率论 · 数学 2023-06-08 Emma Horton , Alexander R. Watson

In this paper, we investigate a stochastic model describing the time evolution of a polymerization process. A polymer is a macro-molecule resulting from the aggregation of several elementary sub-units called monomers. Polymers can grow by…

概率论 · 数学 2018-08-24 Philippe Robert , Wen Sun

A simple, but ``classical``, stochastic model for epidemic spread in a finite, but large, population is studied. The progress of the epidemic can be divided into three different phases that requires different tools to analyse. Initially the…

种群与进化 · 定量生物学 2018-05-29 Åke Svensson

We study the asymptotic behavior of branching diffusion processes in periodic media. For a super-critical branching process, we distinguish two types of behavior for the normalized number of particles in a bounded domain, depending on the…

概率论 · 数学 2020-03-05 Pratima Hebbar , Leonid Koralov , James Nolen