Results 21 to 30 of about 314,508 (216)

Diffusion, Self-Diffusion and Cross-Diffusion

open access: yesJournal of Differential Equations, 1996
The following system, which determines steady-state solutions for a corresponding parabolic system, is considered: \[ \begin{aligned} \Delta[(d_1+\alpha_{11}u_1+\alpha_{12}u_2)u_1] &+u_1(a_1-b_1u_1-c_1u_2)=0,\\ \Delta[(d_2+\alpha_{21}u_1+\alpha_{22}u_2)u_2] &+u_2(a_2-b_2u_1-c_2u_2)=0\quad\text{in }\Omega,\end{aligned} \] \[ {\partial u_1\over\partial ...
Lou, Yuan, Ni, Wei-Ming
openaire   +1 more source

Multi-taxis Cross-Diffusion System

open access: yes, 2022
AbstractMulti-taxis appears in society interactions and cancer treatment. Society interactions can lead to the complex dynamical behavior in biology and even in criminology ([43, 65, 190]).
Yuanyuan Ke, Jing Li, Yifu Wang
openaire   +1 more source

Envelope Quasisolitons in Dissipative Systems with Cross-Diffusion [PDF]

open access: yesPhysical Review Letters, 2011
We consider two-component nonlinear dissipative spatially extended systems of reaction-cross-diffusion type. Previously, such systems were shown to support "quasi-soliton" pulses, which have fixed stable structure but can reflect from boundaries and penetrate each other.
Biktashev, V. N., Tsyganov, M. A.
openaire   +4 more sources

Zoology of a non-local cross-diffusion model for two species [PDF]

open access: yes, 2017
We study a non-local two species cross-interaction model with cross-diffusion. We propose a positivity preserving finite volume scheme based on the numerical method introduced in Ref.
Carrillo, J. A.   +2 more
core   +2 more sources

Modeling of nonequilibrium cross-diffusion systems

open access: yesJournal of Physics: Conference Series, 2022
Abstract In this research, we investigate the modeling of cross-diffusion systems that are not in equilibrium. For a particular equation, it is shown that the parameter values exist and have a numerical solution. A source describes the system of equations considered in this study as being based on the majority of physical processes, such
A U Mamatov, A Yu Nurumova
openaire   +1 more source

Existence and uniqueness analysis of a non-isothermal cross-diffusion system of Maxwell-Stefan type

open access: yes, 2017
In this article we prove local-in-time existence and uniqueness of solution to a non-isothermal cross-diffusion system with Maxwell-Stefan structure.Comment: 6 ...
Hutridurga, Harsha, Salvarani, Francesco
core   +1 more source

Domain-growth-induced patterning for reaction-diffusion systems with linear cross-diffusion [PDF]

open access: yes, 2018
In this article we present, for the first time, domain-growth induced pat- tern formation for reaction-diffusion systems with linear cross-diffusion on evolving domains and surfaces.
Barreira, Raquel, Madzvamuse, Anotida
core   +1 more source

An economic cross-diffusion mutualistic model for cities emergence

open access: yes, 2019
We study an evolution cross-diffusion problem with mutualistic Lotka-Volterra reaction term to modelize the long-term spatial distribution of labor and capital. The mutualistic behavior is deduced from the gradient flow associated to profits maximization.
de-Córdoba, Gonzalo F.   +1 more
core   +1 more source

Hele-Shaw limit for a system of two reaction-(cross-)diffusion equations for living tissues [PDF]

open access: yes, 2019
Multiphase mechanical models are now commonly used to describe living tissues including tumour growth. The specific model we study here consists of two equations of mixed parabolic and hyperbolic type which extend the standard compressible porous medium ...
Bubba, Federica   +3 more
core   +4 more sources

Soliton-like phenomena in one-dimensional cross-diffusion systems: a predator-prey pursuit and evasion example [PDF]

open access: yes, 2004
We have studied properties of nonlinear waves in a mathematical model of a predator-prey system with pursuit and evasion. We demonstrate a new type of propagating wave in this system. The mechanism of propagation of these waves essentially depends on the
Biktashev, V. N.   +3 more
core   +2 more sources

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