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We present constants of motion for the finite-dimensional Lohe type aggregation models with frustration and we apply them to analyze the emergence of collective behaviors. The Lohe type models have been proposed as possible non-abelian and…

数学物理 · 物理学 2021-02-03 Seung-Yeal Ha , Dohyun Kim , Hansol Park , Sang Woo Ryoo

We study emergent dynamics of the Lohe hermitian sphere(LHS) model which can be derived from the Lohe tensor model \cite{H-P2} as a complex counterpart of the Lohe sphere(LS) model. The Lohe hermitian sphere model describes aggregate…

数学物理 · 物理学 2021-05-19 Seung-Yeal Ha , Myeongju Kang , Hansol Park

In this paper we study a general class of hybrid mathematical models of collective motions of cells under the influence of chemical stimuli. The models are hybrid in the sense that cells are discrete entities given by ODE, while the…

偏微分方程分析 · 数学 2022-02-01 Roberto Natalini , Thierry Paul

Some mathematical models of synchronization, such as the Kuramoto model (1975) and its generalizations pioneered by Lohe (2009), are formulated as ordinary differential equations describing populations of particles on Lie groups with…

动力系统 · 数学 2025-01-07 Seung-Yeon Ryoo

The Lohe sphere model and the Lohe matrix model are prototype continuous aggregation models on the unit sphere and the unitary group, respectively. These models have been extensively investigated in recent literature. In this paper, we…

数学物理 · 物理学 2021-11-18 Hyungjun Choi , Seung-Yeal Ha , Hansol Park

Deterministic models of vegetation often summarize, at a macroscopic scale, a multitude of intrinsically random events occurring at a microscopic scale. We bridge the gap between these scales by demonstrating convergence to a mean-field…

动力系统 · 数学 2021-05-20 Denis D. Patterson , Simon A. Levin , A. Carla Staver , Jonathan D. Touboul

In this paper, we review state-of-the-art results on the collective behaviors for Lohe type first-order aggregation models. Collective behaviors of classical and quantum many-body systems have received lots of attention from diverse…

动力系统 · 数学 2021-08-25 Seung-Yeal Ha , Dohyun Kim

In this note, we consider generalizations of the Cucker-Smale dynamical system and we derive rigorously in Wasserstein's type topologies the mean-field limit (and propagation of chaos) to the Vlasov-type equation introduced in [12].Unlike…

偏微分方程分析 · 数学 2021-02-10 Roberto Natalini , Thierry Paul

The phenomenon of self-synchronization in populations of oscillatory units appears naturally in neurosciences. However, in some situations, the formation of a coherent state is damaging. In this article we study a repulsive mean-field…

适应与自组织系统 · 物理学 2018-03-08 Corina Ciobotaru , Linard Hoessly , Christian Mazza , Xavier Richard

A general class of hybrid models has been introduced recently, gathering the advantages multiscale descriptions. Concerning biological applications, the particular coupled structure fits to collective cell migrations and pattern formation…

数值分析 · 数学 2024-01-11 Marta Menci , Roberto Natalini , Thierry Paul

The Vlasov equation is well known to provide a good description of the dynamics of mean-field systems in the $N \to \infty$ limit. This equation has an infinity of stationary states and the case of {\it homogeneous} states, for which the…

统计力学 · 物理学 2015-03-31 Romain Bachelard , F. Staniscia , Thierry Dauxois , G. De Ninno , S. Ruffo

In this paper, we derive the mean-field limit of a collective dynamics model with time-varying weights, for weight dynamics that preserve the total mass of the system as well as indistinguishability of the agents. The limit equation is a…

偏微分方程分析 · 数学 2021-03-12 Nastassia Pouradier Duteil

We present a generalized Lohe matrix model for a homogeneous ensemble with higher order couplings via the gradient flow approach. For the homogeneous free flow with the same hamiltonian, it is well known that the Lohe matrix model with…

数学物理 · 物理学 2021-08-18 Seung-Yeal Ha , Hansol Park

A Collision-Avoiding flocking particle system proposed in [8] is studied in this paper. The global wellposedness of its corresponding Vlasov-type kinetic equation is proved. As a corollary of the global stability result, the mean field…

数学物理 · 物理学 2013-11-15 Rong Yang , Li Chen

Cellular automata lattice gases are useful systems for systematically exploring the connections between non-equilibrium statisitcal mechanics and dynamical systems theory. Here the chaotic properties of a Lorentz lattice gas are studied…

chao-dyn · 物理学 2019-08-17 M. H. Ernst , J. R. Dorfman , R. Nix , D. Jacobs

The Kuramoto model (KM) of coupled phase oscillators on graphs provides the most influential framework for studying collective dynamics and synchronization. It exhibits a rich repertoire of dynamical regimes. Since the work of Strogatz and…

动力系统 · 数学 2017-06-13 Dmitry Kaliuzhnyi-Verbovetskyi , Georgi S. Medvedev

The Lohe tensor model is a first-order tensor-valued continuous-time model for the aggregation of tensors with the same rank and size. It reduces to well-known aggregation models such as the Kuramoto model, the Lohe sphere model and the…

数学物理 · 物理学 2020-10-28 Seung-Yeal Ha , Hansol Park

Beginning with the work of Lohe [14,15] there have been a number of papers [3,5,8,9,11] that have generalized the Kuramoto model for phase-locking to a non-commuting situation. Here we propose and analyze another such model. We consider a…

动力系统 · 数学 2020-01-08 Jared C. Bronski , Thomas E. Carty , Sarah E. Simpson

We study the large-population limit of interacting particle systems evolving on adaptive dynamical networks, motivated in particular by models of opinion dynamics. In such systems, agents interact through weighted graphs whose structure…

偏微分方程分析 · 数学 2026-01-13 Nathalie Ayi

We study emergent behaviors of the Lohe hermitian sphere(LHS) model which is an aggregation model on ${\mathbb C}^d$. The LHS model is a complex analog of the Lohe sphere model on ${\mathbb R}^d$, and hermitian spheres are invariant sets…

数学物理 · 物理学 2020-04-14 Seung-Yeal Ha , Hansol Park
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