The travelling wave of Gray-Scott systems – existence, multiplicity and stability

This article studies existence and stability of travelling wave of unstirred Gray-Scott system in biological pattern formation which models an isothermal chemical reaction $ A + 2B \rightarrow 3B $ involving two chemical species, a reactant A and an auto-catalyst B, and a linear decay $ B \rightarro...

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Main Authors: Yuanwei Qi, Yi Zhu
Format: Article
Language:English
Published: Taylor & Francis Group 2017-08-01
Series:Journal of Biological Dynamics
Subjects:
Online Access:http://dx.doi.org/10.1080/17513758.2017.1308566
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author Yuanwei Qi
Yi Zhu
author_facet Yuanwei Qi
Yi Zhu
author_sort Yuanwei Qi
collection DOAJ
description This article studies existence and stability of travelling wave of unstirred Gray-Scott system in biological pattern formation which models an isothermal chemical reaction $ A + 2B \rightarrow 3B $ involving two chemical species, a reactant A and an auto-catalyst B, and a linear decay $ B \rightarrow C $ , where C is an inert product. Our result shows a new and very distinctive feature of Gray-Scott type of models in generating rich and structurally different travelling pulses than related models in the literature. In particular, the existence of multiple travelling waves which have distinctive number of local maxima is proved. Furthermore, the stability of travelling wave of the reaction–diffusion system of isothermal diffusion system $ A + 2 B \rightarrow 3 B $ , is also studied.
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spelling doaj.art-3e3bfa8c0fe4485583f783fe66f3c6402022-12-21T20:55:24ZengTaylor & Francis GroupJournal of Biological Dynamics1751-37581751-37662017-08-0111037939910.1080/17513758.2017.13085661308566The travelling wave of Gray-Scott systems – existence, multiplicity and stabilityYuanwei Qi0Yi Zhu1University of Central FloridaUniversity of Central FloridaThis article studies existence and stability of travelling wave of unstirred Gray-Scott system in biological pattern formation which models an isothermal chemical reaction $ A + 2B \rightarrow 3B $ involving two chemical species, a reactant A and an auto-catalyst B, and a linear decay $ B \rightarrow C $ , where C is an inert product. Our result shows a new and very distinctive feature of Gray-Scott type of models in generating rich and structurally different travelling pulses than related models in the literature. In particular, the existence of multiple travelling waves which have distinctive number of local maxima is proved. Furthermore, the stability of travelling wave of the reaction–diffusion system of isothermal diffusion system $ A + 2 B \rightarrow 3 B $ , is also studied.http://dx.doi.org/10.1080/17513758.2017.1308566Gray-Scott modeltravelling wavemulti-peak wavesstabilityspreading of local disturbance
spellingShingle Yuanwei Qi
Yi Zhu
The travelling wave of Gray-Scott systems – existence, multiplicity and stability
Journal of Biological Dynamics
Gray-Scott model
travelling wave
multi-peak waves
stability
spreading of local disturbance
title The travelling wave of Gray-Scott systems – existence, multiplicity and stability
title_full The travelling wave of Gray-Scott systems – existence, multiplicity and stability
title_fullStr The travelling wave of Gray-Scott systems – existence, multiplicity and stability
title_full_unstemmed The travelling wave of Gray-Scott systems – existence, multiplicity and stability
title_short The travelling wave of Gray-Scott systems – existence, multiplicity and stability
title_sort travelling wave of gray scott systems existence multiplicity and stability
topic Gray-Scott model
travelling wave
multi-peak waves
stability
spreading of local disturbance
url http://dx.doi.org/10.1080/17513758.2017.1308566
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