Phase portraits and bifurcation diagram of the Gray-Scott model

We give a complete classification of the phase portraits in the Poincaré disk for the cubic polynomial systems ˙ x = 1-x-axy2, ˙ y = -by + axy2, in R2 according with the values of its two parameters a and b. These differential systems correspond to the Gray-Scott model. Moreover we provide the bifur...

Descripción completa

Detalles Bibliográficos
Autores: Chen, Ting|||0000-0001-6570-885X, Li, Shimin|||0000-0003-1695-0097, Llibre, Jaume|||0000-0002-9511-5999
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:236644
Acceso en línea:https://ddd.uab.cat/record/236644
https://dx.doi.org/urn:doi:10.1016/j.jmaa.2020.124840
Access Level:acceso abierto
Palabra clave:Gray-Scott model
Cubic polynomial system
Phase portraits
Bifurcation diagram
Hopf bifurcation
Descripción
Sumario:We give a complete classification of the phase portraits in the Poincaré disk for the cubic polynomial systems ˙ x = 1-x-axy2, ˙ y = -by + axy2, in R2 according with the values of its two parameters a and b. These differential systems correspond to the Gray-Scott model. Moreover we provide the bifurcation diagram in the parameter plane (a,b) of these systems.