Existence and metastability of non-constant steady states in a Keller-Segel model with density-suppressed motility

We are concerned with stationary solutions of a Keller-Segel Model with density-suppressed motility and without cell proliferation. we establish the existence and the analytical approximation of non-constant stationary solutions by applying the phase plane analysis and bifurcation analysis. We show...

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Bibliographic Details
Main Authors: Peng Xia, Yazhou Han, Jicheng Tao, Manjun Ma
Format: Article
Language:English
Published: Western Libraries 2019-09-01
Series:Mathematics in Applied Sciences and Engineering
Subjects:
Online Access:https://ojs.lib.uwo.ca/index.php/mase/article/view/8120
Description
Summary:We are concerned with stationary solutions of a Keller-Segel Model with density-suppressed motility and without cell proliferation. we establish the existence and the analytical approximation of non-constant stationary solutions by applying the phase plane analysis and bifurcation analysis. We show that the one-step solutions is stable and two or more-step solutions are always unstable. Then we further show that two or more-step solutions possess metastability. Our analytical results are corroborated by direct simulations of the underlying system.
ISSN:2563-1926