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A tensor is a multi-dimensional array of complex numbers, and the Lohe tensor model is an aggregation model on the space of tensors with the same rank and size. It incorporates previously well-studied aggregation models on the space of…

Mathematical Physics · Physics 2021-04-01 Seung-Yeal Ha , Dohyun Kim , Hansol Park

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…

Mathematical Physics · Physics 2020-04-14 Seung-Yeal Ha , Hansol Park

We present a first-order aggregation model on the space of complex matrices which can be derived from the Lohe tensor model on the space of tensors with the same rank and size. We call such matrix-valued aggregation model as "the…

Mathematical Physics · Physics 2020-04-14 Seung-Yeal Ha , Hansol Park

The Lohe hierarchy is a hierarchy of finite-dimensional aggregation models consisting of the Kuramoto model, the complex Lohe sphere model, the Lohe matrix model and the Lohe tensor model. In contrast, the Schr\"odinger-Lohe model is the…

Mathematical Physics · Physics 2020-12-02 Seung-Yeal Ha , Hansol Park

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…

Dynamical Systems · Mathematics 2021-08-25 Seung-Yeal Ha , Dohyun Kim

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…

Mathematical Physics · Physics 2021-11-18 Hyungjun Choi , Seung-Yeal Ha , Hansol Park

The Lohe matrix model is a continuous-time dynamical system describing the collective dynamics of group elements in the unitary group manifold, and it has been introduced as a toy model of a non abelian generalization of the Kuramoto phase…

Dynamical Systems · Mathematics 2019-12-06 François Golse , Seung-Yeal Ha

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…

Dynamical Systems · Mathematics 2025-01-07 Seung-Yeon Ryoo

We study a global well-posedness of measure-valued solutions to the kinetic Lohe Hermitian sphere(LHS) model derived from the Lohe tensor(LT) model on the set of rank-1 complex tensors(i.e. complex vectors) with the same size and…

Analysis of PDEs · Mathematics 2021-04-28 Junhyeok Byeon , Seung-Yeal Ha , Gyuyoung Hwang , Hansol Park

We study emergent behaviors of the Lohe hermitian sphere(LHS) model with a time-delay for a homogeneous ensemble. The LHS model is a complex counterpart of the Lohe sphere(LS) aggregation model on the unit sphere in Euclidean space, and it…

Mathematical Physics · Physics 2021-01-12 Seung-Yeal Ha , Gyuyoung Hwang , Hansol Park

We establish a unified synchronization framework for the all-to-all hybrid Kuramoto model that couples first- and second-order oscillators within a single dynamical system. Although the Kuramoto model has become one of the most widely used…

Dynamical Systems · Mathematics 2025-12-09 Ting-Yang Hsiao , Yun-Feng Lo , Chengbin Zhu

We give a complete study of the asymptotic behavior of a simple model of alignment of unit vectors, both at the level of particles , which corresponds to a system of coupled differential equations, and at the continuum level, under the form…

Analysis of PDEs · Mathematics 2018-10-17 Amic Frouvelle , Jian-Guo Liu

Recent studies have demonstrated the great potential of reduced order modeling for parametric dynamical systems using low-rank tensor decompositions (LRTD). In particular, within the framework of interpolatory tensorial reduced order models…

Numerical Analysis · Mathematics 2025-10-14 Alexander V. Mamonov , Maxim A. Olshanskii

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…

Mathematical Physics · Physics 2021-02-03 Seung-Yeal Ha , Dohyun Kim , Hansol Park , Sang Woo Ryoo

In the Kuramoto model of globally coupled oscillators, partially locked states (PLS) are stationary solutions that incorporate the emergence of partial synchrony when the interaction strength increases. While PLS have long been considered,…

Analysis of PDEs · Mathematics 2025-03-25 Helge Dietert , Bastien Fernandez , David Gérard-Varet

We study emergent dynamics of the Lohe hermitian sphere (LHS) model with the same free flows under the dynamic interplay between state evolution and adaptive couplings. The LHS model is a complex counterpart of the Lohe sphere (LS) model on…

Mathematical Physics · Physics 2021-01-12 Junhyeok Byeon , Seung-Yeal Ha , Hansol Park

The one-dimensional totally asymmetric simple exclusion process (TASEP), a Markov process describing classical hard-core particles hopping in the same direction, is considered on a periodic lattice of $L$ sites. The relaxation to the…

Statistical Mechanics · Physics 2016-03-09 Sylvain Prolhac

We study the long time asymptotics of the relaxation dynamics of the totally asymmetric simple exclusion process on a ring. Evaluating the asymptotic amplitudes of the local currents by the algebraic Bethe ansatz method, we find the…

Statistical Mechanics · Physics 2012-11-01 Kohei Motegi , Kazumitsu Sakai , Jun Sato

The Kuramoto model is a system of nonlinear differential equations that models networks of coupled oscillators and is often used to study synchronization among the oscillators. In this paper we study steady state solutions of the Kuramoto…

Dynamical Systems · Mathematics 2017-04-10 Timothy Ferguson

A method of expansion of solutions of singularly perturbed nonlinear systems in power series of small parameters is applied to the popular Lorenz model in synergetics.Simple asymptotic expressions for the solution to the model in…

chao-dyn · Physics 2007-05-23 E. M. Shahverdiev
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