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In this paper, we consider a BGK-type kinetic model relaxing to the isentropic gas dynamics in the hydrodynamic limit. We introduce a linearization of the equation around the global equilibrium. Then we prove the global existence of…

偏微分方程分析 · 数学 2024-02-16 Byung-Hoon Hwang

A general system of particles (of one or several species) on a one dimensional lattice with boundaries is considered. Two general behaviors of such systems are investigated. The stationary behavior of the system, and the dominant way of the…

统计力学 · 物理学 2015-06-24 Mohammad Khorrami , Amir Aghamohammadi

We analyse the stability of linear dynamical systems defined on sparse, random graphs with predator-prey, competitive, and mutualistic interactions. These systems are aimed at modelling the stability of fixed points in large systems defined…

统计力学 · 物理学 2025-01-30 Andrea Marcello Mambuca , Chiara Cammarota , Izaak Neri

This article is concerned with the stability and long-time dynamics of structures arising from a structureless state. The paradigm is suggested by developmental biology, where morphogenesis is thought to result from a competition between…

斑图形成与孤子 · 物理学 2007-06-18 Hans G. Kaper , Shouhong Wang , Masoud Yari

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

How diversity is maintained in natural ecosystems is a long-standing question in Theoretical Ecology. By studying a system that combines ecological dynamics, heterogeneous interactions and spatial structure, we uncover a new mechanism for…

种群与进化 · 定量生物学 2024-03-21 Giulia Garcia Lorenzana , Ada Altieri , Giulio Biroli

Mathematical models of glucose, insulin, and pancreatic $\beta$-cell mass dynamics are essential for understanding the physiological basis of type 2 diabetes. This paper investigates the Topp model's discrete-time dynamics to represent…

动力系统 · 数学 2024-05-02 Z. S. Boxonov , U. A. Rozikov

Fundamental properties of macroscopic gene-mating dynamic evolutionary systems are investigated. We focus on a single locus, any number of alleles in a two-gender dioecious population, for a large class of systems within population…

种群与进化 · 定量生物学 2020-07-22 Juven Wang , Jiunn-Wei Chen

We propose a new mechanism for pattern formation based on the global alternation of two dynamics neither of which exhibits patterns. When driven by either one of the separate dynamics, the system goes to a spatially homogeneous state…

统计力学 · 物理学 2009-11-07 J. Buceta , Katja Lindenberg , J. M. R. Parrondo

Most population models assume that individuals within a given population are identical, that is, the fundamental role of variation is ignored. Here we develop a general approach to modeling heterogeneous populations with discrete…

种群与进化 · 定量生物学 2007-05-23 Georgy P. Karev , Artem S. Novozhilov , Faina S. Berezovskaya

The paper is devoted to a reaction-diffusion equation with doubly nonlocal nonlinearity arising in various applications in population dynamics. One of the integral terms corresponds to the nonlocal consumption of resources while another one…

斑图形成与孤子 · 物理学 2016-01-19 M. Banerjee , V. Vougalter , V. Volpert

We consider boundary value problems for quasilinear first-order one-dimensional hyperbolic systems in a strip. The boundary conditions are supposed to be of a smoothing type, in the sense that the $L^2$-generalized solutions to the…

偏微分方程分析 · 数学 2025-12-10 I. Kmit , L. Recke , V. Tkachenko

This work is dedicated to the study of a linear model arising in thermoelastic rod of homogeneous material. The system is resulting from a coupling of a heat and a wave equation in the interval $(0,1)$ with Dirichlet boundary conditions at…

偏微分方程分析 · 数学 2024-10-10 Kaïs Ammari , Fathi Hassine , Luc Robbiano

We prove the local and global in time existence of the classical solutions to two general classes of the stress-assisted diffusion systems. Our results are applicable in the context of the non-Euclidean elasticity and liquid crystal…

偏微分方程分析 · 数学 2015-03-06 Marta Lewicka , Piotr B. Mucha

We study global-in-time behavior of the solution to a reaction-diffusion system with mass conservation, as proposed in the study of cell polarity, particularly, the second model of \cite{oi07}. First, we show global-in-time existence of…

偏微分方程分析 · 数学 2015-11-13 Evangelos Latos , Yoshihisa Morita , Takashi Suzuki

We study a diffusive Lotka-Volterra competition system with advection under Neumann boundary conditions. Our system models a competition relationship that one species escape from the region of high population density of their competitors in…

偏微分方程分析 · 数学 2015-05-28 Chunyi Gai , Qi Wang , Jingda Yan

We consider a thermodynamically consistent model for the evolution of thermally conducting two-phase incompressible fluids. Complementing previous results, we prove additional regularity properties of solutions in the case when the…

偏微分方程分析 · 数学 2017-08-04 Michela Eleuteri , Stefania Gatti , Giulio Schimperna

This paper develops and analyzes a diffusion-advection model coupling population dynamics with toxicant transport, incorporating a boundary protection zone. For both upstream and downstream protection zone configurations, we investigate the…

种群与进化 · 定量生物学 2025-08-05 Jing Gao , Xiaoli Wang , Guohong Zhang

We are concerned with the persistence of both predator and prey in a diffusive predator-prey system with a climate change effect, which is modeled by a spatial-temporal heterogeneity depending on a moving variable. Moreover, we consider…

偏微分方程分析 · 数学 2021-05-10 Wonhyung Choi , Thomas Giletti , Jong-Shenq Guo

We study the planar front solution for a class of reaction diffusion equations in multidimensional space in the case when the essential spectrum of the linearization in the direction of the front touches the imaginary axis. At the linear…

偏微分方程分析 · 数学 2017-12-11 Anna Ghazaryan , Yuri Latushkin , Xinyao Yang
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