INVESTIGADORES
IRURZUN isabel Maria
artículos
Título:
Turbulent states in a reaction-diffusion system with period-doubling bifurcations
Autor/es:
E. PURLIS; I. M. IRURZUN; E. E. MOLA
Revista:
CHEMICAL PHYSICS LETTERS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2008 vol. 462 p. 64 - 68
ISSN:
0009-2614
Resumen:
We investigate the spatially extended Hastings-Powell model in one and two dimensions with constant diffusion coeffcients and non-flux boundary conditions. Nowave zones, spirals and chaos are found. An absolute instability of the spirals produces a transition to chaos. A constant number of defects, linearlyincreasing with the parameter that governs the excitability of the system is found, i.e. there do not exist defect-creation or defect-destruction events. Defects behave as hard disks, with translational degrees of freedom, which result from a cooperative interaction between pairs of defects.
