Vehicular traffic, crowds, and swarms: From kinetic theory and multiscale methods to applications and research perspectives

G Albi, N Bellomo, L Fermo, SY Ha, J Kim… - … Models and Methods …, 2019 - World Scientific
This paper presents a review and critical analysis on the modeling of the dynamics of
vehicular traffic, human crowds and swarms seen as living and, hence, complex systems. It …

Consensus-based optimization on hypersurfaces: Well-posedness and mean-field limit

M Fornasier, H Huang, L Pareschi… - Mathematical Models and …, 2020 - World Scientific
We introduce a new stochastic differential model for global optimization of nonconvex
functions on compact hypersurfaces. The model is inspired by the stochastic Kuramoto …

A new flocking model through body attitude coordination

P Degond, A Frouvelle… - Mathematical Models and …, 2017 - World Scientific
We present a new model for multi-agent dynamics where each agent is described by its
position and body attitude: agents travel at a constant speed in a given direction and their …

Trend to equilibrium for the kinetic Fokker-Planck equation via the neural network approach

HJ Hwang, JW Jang, H Jo, JY Lee - Journal of Computational Physics, 2020 - Elsevier
The issue of the relaxation to equilibrium has been at the core of the kinetic theory of rarefied
gas dynamics. In the paper, we introduce the Deep Neural Network (DNN) approximated …

Topological states and continuum model for swarmalators without force reciprocity

P Degond, A Diez, A Walczak - Analysis and applications, 2022 - World Scientific
Swarmalators are systems of agents which are both self-propelled particles and oscillators.
Each particle is endowed with a phase which modulates its interaction force with the other …

Particle and kinetic models for swarming particles on a sphere and stability properties

SY Ha, D Kim, J Lee, SE Noh - Journal of Statistical Physics, 2019 - Springer
We present particle and kinetic models for the description of swarming particles on a sphere
in the presence of random noises, and study their stability properties. In the absence of …

Cauchy theory for general kinetic Vicsek models in collective dynamics and mean-field limit approximations

M Briant, A Diez, S Merino-Aceituno - SIAM Journal on Mathematical Analysis, 2022 - SIAM
In this paper we provide a local Cauchy theory both on the torus and in the whole space for
general Vicsek dynamics at the kinetic level. We consider rather general interaction kernels …

Global well-posedness of the spatially homogeneous Kolmogorov–Vicsek model as a gradient flow

A Figalli, MJ Kang, J Morales - Archive for Rational Mechanics and …, 2018 - Springer
We consider the so-called spatially homogenous Kolmogorov–Vicsek model, a non-linear
Fokker–Planck equation of self-driven stochastic particles with orientation interaction under …

Phase transitions and macroscopic limits in a BGK model of body-attitude coordination

P Degond, A Diez, A Frouvelle… - Journal of Nonlinear …, 2020 - Springer
In this article we investigate the phase transition phenomena that occur in a model of self-
organisation through body-attitude coordination. Here, the body attitude of an agent is …

Alignment of self-propelled rigid bodies: from particle systems to macroscopic equations

P Degond, A Frouvelle, S Merino-Aceituno… - Stochastic Dynamics Out …, 2019 - Springer
The goal of these lecture notes is to present in a unified way various models for the
dynamics of aligning self-propelled rigid bodies at different scales and the links between …