Waves interaction in the Fisher–Kolmogorov equation with arguments deviation
- 作者: Aleshin S.1,2, Glyzin S.1,2, Kaschenko S.1,3
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隶属关系:
- Yaroslavl State University
- Scientific Center in Chernogolovka
- National Research Nuclear University MEPhI
- 期: 卷 38, 编号 1 (2017)
- 页面: 24-29
- 栏目: Article
- URL: https://journals.rcsi.science/1995-0802/article/view/198596
- DOI: https://doi.org/10.1134/S199508021701005X
- ID: 198596
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详细
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.
作者简介
S. Aleshin
Yaroslavl State University; Scientific Center in Chernogolovka
编辑信件的主要联系方式.
Email: fktiby@yandex.ru
俄罗斯联邦, ul. Sovetskaya 14, Yaroslavl, 150000; ul. Lesnaya 9, Chernogolovka, Moscow oblast, 142432
S. Glyzin
Yaroslavl State University; Scientific Center in Chernogolovka
Email: fktiby@yandex.ru
俄罗斯联邦, ul. Sovetskaya 14, Yaroslavl, 150000; ul. Lesnaya 9, Chernogolovka, Moscow oblast, 142432
S. Kaschenko
Yaroslavl State University; National Research Nuclear University MEPhI
Email: fktiby@yandex.ru
俄罗斯联邦, ul. Sovetskaya 14, Yaroslavl, 150000; Kashirskoe sh. 31, Moscow, 115409