Spatio-temporal chaos for the Gray–Scott model

Y Nishiura, D Ueyama - Physica D: Nonlinear Phenomena, 2001 - Elsevier
A new geometrical criterion for the transition to spatio-temporal chaos (STC) arising in the
Gray–Scott model is presented. This is based on the inter-relationship of global bifurcating …

The stability and dynamics of localized spot patterns in the two-dimensional Gray–Scott model

W Chen, MJ Ward - SIAM Journal on Applied Dynamical Systems, 2011 - SIAM
The dynamics and stability of multispot patterns to the Gray–Scott (GS) reaction-diffusion
model in a two-dimensional domain is studied in the singularly perturbed limit of small …

The existence and stability of spike equilibria in the one-dimensional Gray–Scott model: the pulse-splitting regime

T Kolokolnikov, MJ Ward, J Wei - Physica D: Nonlinear Phenomena, 2005 - Elsevier
The existence, stability, and pulse-splitting behavior of spike patterns in the one-dimensional
Gray–Scott model on a finite domain is analyzed in the semi-strong spike-interaction regime …

Spot self-replication and dynamics for the Schnakenburg model in a two-dimensional domain

T Kolokolnikov, MJ Ward, J Wei - Journal of nonlinear science, 2009 - Springer
The dynamical behavior of multi-spot solutions in a two-dimensional domain Ω is analyzed
for the two-component Schnakenburg reaction–diffusion model in the singularly perturbed …

The Existence and Stability of Spike Equilibria in the One‐Dimensional Gray–Scott Model: The Low Feed‐Rate Regime

T Kolokolnikov, MJ Ward, J Wei - Studies in Applied …, 2005 - Wiley Online Library
In a singularly perturbed limit of small diffusivity ɛ of one of the two chemical species,
equilibrium spike solutions to the Gray–Scott (GS) model on a bounded one‐dimensional …

The slow dynamics of two-spike solutions for the Gray--Scott and Gierer--Meinhardt systems: Competition and oscillatory instabilities

W Sun, MJ Ward, R Russell - SIAM Journal on Applied Dynamical Systems, 2005 - SIAM
The dynamics and instability mechanisms of both one-and two-spike solutions to the Gierer--
Meinhardt (GM) and Gray--Scott (GS) models are analyzed on a bounded one-dimensional …

Oscillatory instabilities and dynamics of multi-spike patterns for the one-dimensional Gray-Scott model

W Chen, MJ Ward - European Journal of Applied Mathematics, 2009 - cambridge.org
The dynamics and oscillatory instabilities of multi-spike solutions to the one-dimensional
Gray-Scott reaction–diffusion system on a finite domain are studied in a particular parameter …

Self-replicating pulses and Sierpinski gaskets in excitable media

Y Hayase, T Ohta - Physical Review E, 2000 - APS
In our previous papers, we have shown by computer simulations that a Sierpinski gasket
pattern appears in a Bonhoeffer–van der Pol type reaction-diffusion system. In this paper, we …

Zigzag and Breakup Instabilities of Stripes and Rings in the Two‐Dimensional Gray–Scott Model

T Kolokolnikov, MJ Ward, J Wei - Studies in Applied …, 2006 - Wiley Online Library
Two different types of instabilities of equilibrium stripe and ring solutions are studied for the
singularly perturbed two‐component Gray–Scott (GS) model in a two‐dimensional domain …

Self-replication of mesa patterns in reaction–diffusion systems

T Kolokolnikov, MJ Ward, J Wei - Physica D: Nonlinear Phenomena, 2007 - Elsevier
Certain two-component reaction–diffusion systems on a finite interval are known to possess
mesa (box-like) steady-state patterns in the singularly perturbed limit of small diffusivity for …