4.6 Article

Persistence of traveling waves to the time fractional Keller-Segel system with a small parameter

Journal

Publisher

WILEY
DOI: 10.1002/mma.9498

Keywords

chemotaxis; geometric singular perturbation; time fractional Keller-Segel system; traveling waves

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This paper investigates the time fractional Keller-Segel system with a small parameter. The heteroclinic orbit of the degenerate time fractional Keller-Segel system is demonstrated using the fractional order traveling wave transformation and constructing a suitable invariant region. The persistence of traveling waves in the system with a small parameter is further illustrated. These results are mainly based on the application of geometric singular perturbation theory and Fredholm theorem, which are fundamental theoretical frameworks for dealing with problems of complexity and high dimensionality. The asymptotic behavior is depicted by the asymptotic theory to illustrate the rate of decay for traveling waves.
This paper aims to investigate the time fractional Keller-Segel system with a small parameter. After the fractional order traveling wave transformation, the heteroclinic orbit of the degenerate time fractional Keller-Segel system is demonstrated through the method of constructing a suitable invariant region. Moreover, the persistence of traveling waves in the system with a small parameter can be further illustrated. The results are mainly reliance on the application of geometric singular perturbation theory and Fredholm theorem, which are fundamental theoretical frameworks for dealing with problems of complexity and high dimensionality. Eventually, the asymptotic behavior is depicted by the asymptotic theory to illustrate the rate of decay for traveling waves.

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