Back to Search Start Over

Waves interaction in the Fisher–Kolmogorov equation with arguments deviation

Authors :
Sergey A. Kaschenko
S. D. Glyzin
S. Aleshin
Source :
Lobachevskii Journal of Mathematics. 38:24-29
Publication Year :
2017
Publisher :
Pleiades Publishing Ltd, 2017.

Abstract

We considered the process of density wave propagation in the logistic equation with diffusion, such as Fisher–Kolmogorov equation, and arguments deviation. Firstly, we studied local properties of solutions corresponding to the considered equation with periodic boundary conditions using asymptotic methods. It was shown that increasing of period makes the spatial structure of stable solutions more complicated. Secondly, we performed numerical analysis. In particular, we considered the problem of propagating density waves interaction in infinite interval. Numerical analysis of the propagating waves interaction process, described by this equation, was performed at the computing cluster of YarSU with the usage of the parallel computing technology—OpenMP. Computations showed that a complex spatially inhomogeneous structure occurring in the interaction of waves can be explained by properties of the corresponding periodic boundary value problem solutions by increasing the spatial variable changes interval. Thus, the complication of the wave structure in this problem is associated with its space extension.

Details

ISSN :
18189962 and 19950802
Volume :
38
Database :
OpenAIRE
Journal :
Lobachevskii Journal of Mathematics
Accession number :
edsair.doi...........e3ecb8dd6c8200ff121c6050772328f5
Full Text :
https://doi.org/10.1134/s199508021701005x