Results 21 to 30 of about 469,036 (195)

Chemical turbulence equivalent to Nikolavskii turbulence [PDF]

open access: yes, 2004
We find evidence that a certain class of reaction-diffusion systems can exhibit chemical turbulence equivalent to Nikolaevskii turbulence. The distinctive characteristic of this type of turbulence is that it results from the interaction of weakly stable ...
A. T. Winfree   +6 more
core   +2 more sources

Stochastic reaction–diffusion equations on networks [PDF]

open access: yesJournal of Evolution Equations, 2021
AbstractWe consider stochastic reaction–diffusion equations on a finite network represented by a finite graph. On each edge in the graph, a multiplicative cylindrical Gaussian noise-driven reaction–diffusion equation is given supplemented by a dynamic Kirchhoff-type law perturbed by multiplicative scalar Gaussian noise in the vertices.
M. Kovács, E. Sikolya
openaire   +3 more sources

A Numerical Method for Time-Fractional Reaction-Diffusion and Integro Reaction-Diffusion Equation Based on Quasi-Wavelet

open access: yesComplexity, 2020
In this research work, we focused on finding the numerical solution of time-fractional reaction-diffusion and another class of integro-differential equation known as the integro reaction-diffusion equation.
Sachin Kumar, Jinde Cao, Xiaodi Li
doaj   +1 more source

Bistable equation with discontinuous density dependent diffusion with degenerations and singularities

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
In this article we introduce rather general notion of the stationary solution of the bistable equation which allows to treat discontinuous density dependent diffusion term with singularities and degenerations, as well as degenerate or non-Lipschitz ...
Pavel Drábek, Michaela Zahradnikova
doaj   +1 more source

Traveling wave solutions for a neutral reaction–diffusion equation with non-monotone reaction

open access: yesAdvances in Difference Equations, 2019
In the present paper, we firstly improve the results on traveling wave solution that were established in (Liu and Weng in J. Differ. Equ. 258:3688–3741, 2015) for a neutral reaction–diffusion equation with quasi-monotone reaction.
Yubin Liu
doaj   +1 more source

State Feedback Regulation Problem to the Reaction-Diffusion Equation

open access: yesMathematics, 2020
In this work, we explore the state feedback regulator problem (SFRP) in order to achieve the goal for trajectory tracking with harmonic disturbance rejection to one-dimensional (1-D) reaction-diffusion (R-D) equation, namely, a partial differential ...
Francisco Jurado, Andrés A. Ramírez
doaj   +1 more source

On a semilinear fractional reaction-diffusion equation with nonlocal conditions

open access: yesAlexandria Engineering Journal, 2021
In the present paper, a nonlocal problem for semilinear fractional diffusion equations with Riemann-Liouville derivative is investigated. By applying Banach fixed point theorem combined with some techniques on Mittag-Leffler functions, we establish some ...
Tran Ngoc Thach   +3 more
doaj   +1 more source

Solution of Higher Order Nonlinear Time-Fractional Reaction Diffusion Equation

open access: yesEntropy, 2016
The approximate analytical solution of fractional order, nonlinear, reaction differential equations, namely the nonlinear diffusion equations, with a given initial condition, is obtained by using the homotopy analysis method. As a demonstration of a good
Neeraj Kumar Tripathi   +4 more
doaj   +1 more source

Similarity solutions of Reaction-Diffusion equation with space- and time-dependent diffusion and reaction terms

open access: yes, 2015
We consider solvability of the generalized reaction-diffusion equation with both space- and time-dependent diffusion and reaction terms by means of the similarity method.
Ho, C. -L., Lee, C. -C.
core   +1 more source

Kolmogorov Equation for a Stochastic Reaction–Diffusion Equation with Multiplicative Noise

open access: yesMathematics
Reaction–diffusion equations can model complex systems where randomness plays a role, capturing the interaction between diffusion processes and random fluctuations.
Kaiyuqi Guan, Yu Shi
doaj   +1 more source

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