Title of article :
Spatio-temporal oscillations in the Keller–Segel system with logistic growth
Author/Authors :
Ei، نويسنده , , Shin-Ichiro and Izuhara، نويسنده , , Hirofumi and Mimura، نويسنده , , Masayasu، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2014
Abstract :
The Keller–Segel system with the logistic growth term is discussed from the spatio-temporal-oscillation point of view. This system exhibits two different types of spatio-temporal oscillations in certain distinct parameter regimes. In this paper, we study the difference between the two types of spatio-temporal oscillations. In particular, the characteristic properties of the behaviors become clear in a limiting system when a certain parameter value tends to zero. Moreover, we demonstrate that the onset of one of the spatio-temporal oscillatory patterns is an infinite-dimensional relaxation oscillation that consists of slow and fast dynamics.
Keywords :
chemotaxis , Spatio-temporal pattern , Relaxation oscillation , PDE models
Journal title :
Physica D Nonlinear Phenomena
Journal title :
Physica D Nonlinear Phenomena