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We study a reaction-diffusion-convection problem with nonlinear drift posed in a domain with periodically arranged obstacles. The non-linearity in the drift is linked to the hydrodynamic limit of a totally asymmetric simple exclusion…

偏微分方程分析 · 数学 2022-04-05 Vishnu Raveendran , Emilio N. M. Cirillo , Adrian Muntean

We extend flow matching to ensembles of linear systems in both deterministic and stochastic settings. Averaging over system parameters induces memory leading to a non-Markovian interpolation problem for the stochastic case. In this setting,…

最优化与控制 · 数学 2025-10-17 Daniel Owusu Adu , Yongxin Chen

The ribosome flow model (RFM) is a phenomenological model for the flow of particles along a 1D chain of $n$ sites. It has been extensively used to study ribosome flow along the mRNA molecule during translation. When the transition rates…

最优化与控制 · 数学 2025-05-20 Ron Ofir , Thomas Kriecherbauer , Lars Grüne , Michael Margaliot

While the rheology of non-Brownian suspensions in the dilute regime is well-understood, their behavior in the dense limit remains mystifying. As the packing fraction of particles increases, particle motion becomes more collective, leading…

软凝聚态物质 · 物理学 2015-06-03 Edan Lerner , Gustavo Düring , Matthieu Wyart

Unsteady fluid systems are nonlinear high-dimensional dynamical systems that may exhibit multiple complex phenomena both in time and space. Reduced Order Modeling (ROM) of fluid flows has been an active research topic in the recent decade…

流体动力学 · 物理学 2020-10-05 Hamidreza Eivazi , Hadi Veisi , Mohammad Hossein Naderi , Vahid Esfahanian

Several theoretical models based on totally asymmetric simple exclusion process (TASEP) have been extensively utilized to study various non-equilibrium transport phenomena. Inspired by the the role of microtubule-transported vesicles in…

统计力学 · 物理学 2021-02-03 Akriti Jindal , Atul Kumar Verma , Arvind Kumar Gupta

Adapting pretrained multi-modal models to evolving test-time distributions, known as multi-modal test-time adaptation, presents a significant challenge. Existing methods frequently encounter negative transfer in the unbiased modality and…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Yongbo He , Zirun Guo , Tao Jin

We construct an algorithm that generates large, band-diagonal transition matrices for a totally asymmetric exclusion process (TASEP) with local hopping rate inhomogeneities. The matrices are diagonalized numerically to find steady-state…

统计力学 · 物理学 2009-11-10 Tom Chou , Greg Lakatos

We consider a linearized dynamical system modelling the flow rate of water along the rivers and hillslopes of an arbitrary watershed. The system is perturbed by a random rainfall in the form of a compound Poisson process. The model…

概率论 · 数学 2018-11-05 Jorge M Ramirez , Corina Constantinescu

In many important cellular processes, including mRNA translation, gene transcription, phosphotransfer, and intracellular transport, biological "particles" move along some kind of "tracks". The motion of these particles can be modeled as a…

亚细胞过程 · 定量生物学 2017-11-01 Yoram Zarai , Michael Margaliot , Tamir Tuller

We consider an interacting particle system, which generalizes the classical totally asymmetric simple exclusion process (TASEP), in that each site can contain up to a fixed finite number of particles, and the particle movement is governed…

概率论 · 数学 2026-03-17 Yuliy Baryshnikov , Alexander Stolyar

In the finite element analysis with fast decoupled time integration scheme for viscoelastic fluid (the Leonov model) flow, we investigate strong nonlinear behavior in 2D creeping contraction flow. The algorithm is applicable in the whole…

流体动力学 · 物理学 2011-11-02 Youngdon Kwon

We present the derivation of a new unidirectional model for We present the derivation of a new unidirectional model for unsteady mixed flows in non uniform closed water pipes. We introduce a local reference frame to take into account the…

偏微分方程分析 · 数学 2010-06-02 Christian Bourdarias , Mehmet Ersoy , Stéphane Gerbi

Dense image correspondence is central to many applications, such as visual odometry, 3D reconstruction, object association, and re-identification. Historically, dense correspondence has been tackled separately for wide-baseline scenarios…

计算机视觉与模式识别 · 计算机科学 2026-02-11 Yuchen Zhang , Nikhil Keetha , Chenwei Lyu , Bhuvan Jhamb , Yutian Chen , Yuheng Qiu , Jay Karhade , Shreyas Jha , Yaoyu Hu , Deva Ramanan , Sebastian Scherer , Wenshan Wang

We explore the stationary densities and domain walls in the steady states of a pair of asymmetric exclusion processes (TASEP) antiparallelly coupled to two particle reservoirs without any spatial extent by using the model in Haldar et al.,…

统计力学 · 物理学 2026-02-13 Sourav Pal , Parna Roy , Abhik Basu

We obtain the large deviation function for entropy production of the medium and its distribution function for two-site totally asymmetric simple exclusion process(TASEP) and three-state unicyclic network. Since such systems are described…

统计力学 · 物理学 2016-01-29 Bappa Saha , Sutapa Mukherji

The paper considers a thermodynamically consistent phase-field model of a two-phase flow of incompressible viscous fluids. The model allows for a non-linear dependence of fluid density on the phase-field order parameter. Driven by…

数值分析 · 数学 2023-09-27 Yerbol Palzhanov , Alexander Zhiliakov , Annalisa Quaini , Maxim Olshanskii

Deterministic flow models, such as rectified flows, offer a general framework for learning a deterministic transport map between two distributions, realized as the vector field for an ordinary differential equation (ODE). However, they are…

机器学习 · 计算机科学 2024-10-04 Saurabh Singh , Ian Fischer

We introduce and analyze two general dynamical models for unidirectional movement of particles along a circular chain and an open chain of sites. The models include a soft version of the simple exclusion principle, that is, as the density…

定量方法 · 定量生物学 2019-03-14 Eyal Bar-Shalom , Alexander Ovseevich , Michael Margaliot

The totally asymmetric simple exclusion process (TASEP) is a well studied example of far-from-equilibrium dynamics. Here, we consider a TASEP with open boundaries but impose a global constraint on the total number of particles. In other…

统计力学 · 物理学 2008-07-02 D. A. Adams , B. Schmittmann , R. K. P. Zia