Effect of boundary conditions on the dynamics of a pulse solution for reaction-diffusion systems

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March 2013, 8(1): 191-209. doi: 10.3934/nhm.2013.8.191

Effect of boundary conditions on the dynamics of a pulse solution for reaction-diffusion systems

Shin-Ichiro Ei ^1, and Toshio Ishimoto ^2,

1.	Institute of Mathematics for Industry, Kyusyu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395
2.	Opinion Poll Research Center, The Asahi Shimbun Company, Tokyo 104-8011, Japan

Received February 2012 Revised January 2013 Published April 2013

Abstract
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We consider pulse-like localized solutions for reaction-diffusion systems on a half line and impose various boundary conditions at one end of it. It is shown that the movement of a pulse solution with the homogeneous Neumann boundary condition is completely opposite from that with the Dirichlet boundary condition. As general cases, Robin type boundary conditions are also considered. Introducing one parameter connecting the Neumann and the Dirichlet boundary conditions, we clarify the transition of motions of solutions with respect to boundary conditions.

Keywords: Reaction-diffusion systems, front solutions., effect of boundary conditions, pulse solutions.

Mathematics Subject Classification: Primary: 35K57; Secondary: 35B25, 35K5.

Citation: Shin-Ichiro Ei, Toshio Ishimoto. Effect of boundary conditions on the dynamics of a pulse solution for reaction-diffusion systems. Networks & Heterogeneous Media, 2013, 8 (1) : 191-209. doi: 10.3934/nhm.2013.8.191

References:

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show all references

References:

[1]	J. Carr and R. L. Pego, Metastable patterns in solutions of $u_t = epsilon^2 u_{x x} + f(u)$,, Comm. Pure Appl. Math., 42 (1989), 523. doi: 10.1002/cpa.3160420502.
[2]	A. Doelman, R. A. Gardner and T. J. Kaper, Stability analysis of singular patterns in the 1-D Gray-Scott model,, Physica D, 122 (1998), 1. doi: 10.1016/S0167-2789(98)00180-8.
[3]	S.-I. Ei, The motion of weakly interacting pulses in reaction-diffusion systems,, J. Dynam. Differential Equations, 14 (2002), 85. doi: 10.1023/A:1012980128575.
[4]	P. C. Fife and J. B. Mcleod, The approach of solutions of nonlinear diffusion equations to travelling front solutions,, Arch. Ration. Mech. Anal., 65 (1977), 335.
[5]	G. Fusco and J. Hale, Slow motion manifold, dormant instability and singular perturbations,, J. Dynamics and Differential Equations, 1 (1989), 75. doi: 10.1007/BF01048791.
[6]	K. Kawasaki and T. Ohta, Kink dynamics in one-dimensional nonlinear systems,, Physica A, 116 (1982), 573. doi: 10.1016/0378-4371(82)90178-9.
[7]	J. M. Murray, "Mathematical Biology,", Springer-Verlag, (1989).
[8]	Y. Nishiura, "Far-From-Equilibrium Dynamics,", (Translations of Mathematical Monographs), (2002).

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