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The normal forms up to the third order for a Hopf-steady state bifurcation of a general system of partial functional differential equations (PFDEs) is derived based on the center manifold and normal form theory of PFDEs. This is a…

动力系统 · 数学 2018-03-01 Weihua Jiang , Qi An , Junping Shi

Hyperbolic lattices interpolate between finite-dimensional lattices and Bethe lattices and are interesting in their own right with ordinary percolation exhibiting not one, but two, phase transitions. We study four constraint percolation…

统计力学 · 物理学 2017-11-15 Jorge H. Lopez , J. M. Schwarz

In this work we investigate the effect of density dependent nonlinear diffusion on pattern formation in the Brusselator system. Through linear stability analysis of the basic solution we determine the Turing and the oscillatory instability…

数学物理 · 物理学 2015-06-17 G. Gambino , M. C. Lombardo , M. Sammartino , V. Sciacca

Turing's theory of pattern formation has been used to describe the formation of self-organised periodic patterns in many biological, chemical and physical systems. However, the use of such models is hindered by our inability to predict, in…

斑图形成与孤子 · 物理学 2021-02-03 Srikanth Subramanian , Sean M. Murray

We study a p-adic reaction-diffusion system and the associated Turing patterns. We establish an instability criteria and show that the Turing patterns are not classical patterns consisting of alternating domains. Instead of this, a Turing…

偏微分方程分析 · 数学 2021-09-07 W. A. Zúñiga-Galindo

Spatiotemporal pattern formations in two-layer coupled reaction-diffusion Lengyel-Epstein system with distributed delayed couplings are investigated. Firstly, for the original decoupled system, it is proved that when the intra-reactor…

偏微分方程分析 · 数学 2024-12-23 Qidong Wu , Fengqi Yi

The paper treats a reaction-diffusion equation with hysteretic nonlinearity on a one-dimensional lattice. It arises as a result of the spatial discretization of the corresponding continuous model with so-called nontransverse initial data…

偏微分方程分析 · 数学 2016-01-22 Pavel Gurevich , Sergey Tikhomirov

The study of pattern-forming instabilities in reaction-diffusion systems on growing or otherwise time-dependent domains arises in a variety of settings, including applications in developmental biology, spatial ecology, and experimental…

斑图形成与孤子 · 物理学 2022-07-11 Robert A. Van Gorder , Václav Klika , Andrew L. Krause

The generalized Lin-Taylor model defined on the hexagonal lattice is used to investigate the phase separation in an asymmetric binary liquid mixture consisting of large A (hexagons) and small B (triangles) particles. By considering…

化学物理 · 物理学 2009-11-13 Jozef Strecka , Lucia Canova , Michal Jascur

We study dynamics emergent from a two-dimensional reaction--diffusion process modelled via a finite lattice dynamical system, as well as an analogous PDE system, involving spatially nonlocal interactions. These models govern the evolution…

组织与器官 · 定量生物学 2018-11-14 Andrew L. Krause , Dmitry Beliaev , Robert A. Van Gorder , Sarah L. Waters

We survey recent results on reaction-diffusion equations with discontinuous hysteretic nonlinearities. We connect these equations with free boundary problems and introduce a related notion of spatial transversality for initial data and…

偏微分方程分析 · 数学 2015-08-11 Mark Curran , Pavel Gurevich , Sergey Tikhomirov

We study a toy model for a superconductor on a bipartite lattice, where intrinsic pairing inhomogeneity is produced by two different coupling constants on the sublattices. The simplicity of the model allows for analytic solutions and tests…

超导电性 · 物理学 2008-10-27 Vivek Mishra , P. J. Hirschfeld , Yu. S. Barash

Cooperative behaviors arising from bacterial cell-to-cell communication can be modeled by reaction-diffusion equations having only a single diffusible component. This paper presents the following three contributions for the systematic…

系统与控制 · 计算机科学 2016-11-15 Hiroki Miyazako , Yutaka Hori , Shinji Hara

The growth and microstructural properties of ternary monolayers of two-dimensional hexagonal materials are examined, including both individual two-dimensional crystalline grains and in-plane heterostructures, multijunctions, or…

材料科学 · 物理学 2022-07-06 Zhi-Feng Huang

We suggest a new mean field method for studying the thermodynamic competition between magnetic and superconducting phases in a two-dimensional square lattice. A partition function is constructed by writing microscopic interactions that…

超导电性 · 物理学 2009-11-13 Benoit Vanderheyden , A D Jackson

In this work, the entanglement generation between two hexagonal-lattice layers embedded in a microcavity is studied, accounting for both electromagnetic coupling and intrinsic spin-orbit interaction (SOI). Utilizing a short-time dynamical…

量子物理 · 物理学 2026-02-24 Fabricio Danel Matias , Facundo Arreyes , Juan Sebastián Ardenghi

Weakly nonlinear amplitude equations are derived for the onset of spatially extended patterns on a general class of n-component bulk-surface reaction-diffusion systems in a ball, under the assumption of linear kinetics in the bulk and…

斑图形成与孤子 · 物理学 2025-05-27 Edgardo Villar-Sepúlveda , Alan R. Champneys , Davide Cusseddu , Anotida Madzvamuse

We apply score-based diffusion models to two-dimensional SU(2) lattice pure gauge theory with the Wilson action, extending recent work on U(1) gauge theories. The SU(2) manifold structure is handled through a quaternion parameterization.…

高能物理 - 格点 · 物理学 2026-02-24 H. Alharazin , J. Yu. Panteleeva , B. -D. Sun

In this article, we carry out a study of long-term behavior of reaction-diffusion systems augmented with self- and cross-diffusion, using an augmented Gray-Scott system as a general example. The methodology remains generic, and is therefore…

斑图形成与孤子 · 物理学 2023-08-16 Benjamin Aymard

We study a 12-parameter stochastic process involving particles with two-site interaction and hard-core repulsion on a $d$-dimensional lattice. In this model, which includes the asymmetric exclusion process, contact processes and other…

凝聚态物理 · 物理学 2009-10-22 Gunter M. Schütz