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Waves interaction in the Fisher–Kolmogorov equation with arguments deviation
- 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.
- Subjects :
- General Mathematics
Numerical analysis
Mathematical analysis
02 engineering and technology
Delay differential equation
01 natural sciences
Density wave theory
010101 applied mathematics
symbols.namesake
0202 electrical engineering, electronic engineering, information engineering
symbols
Periodic boundary conditions
Fisher–Kolmogorov equation
020201 artificial intelligence & image processing
Fokker–Planck equation
Boundary value problem
Fisher's equation
0101 mathematics
Mathematics
Subjects
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