UNSPECIFIED. (2000) Heteroclinic cycles in rings of coupled cells. PHYSICA D, 143 (1-4). pp. 74-108. ISSN 0167-2789

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Abstract

Symmetry is used to investigate the existence and stability of heteroclinic cycles involving steady-state and periodic solutions in coupled cell systems with D-n-symmetry. Using the lattice of isotropy subgroups, we study the normal form equations restricted to invariant fixed-point subspaces and prove that it is possible fur the normal form equations to have robust, asymptotically stable, heteroclinic cycles connecting periodic solutions with steady states and periodic solutions with periodic solutions. A center manifold reduction from the ring of cells to the normal form equations is then performed. Using this reduction we find parameter values of the cell system where asymptotically stable cycles exist. Simulations of the cycles show trajectories visiting steady states and periodic solutions and reveal interesting spatio-temporal patterns in the dynamics of individual cells. We discuss how these patterns are forced by normal form symmetries. (C) 2000 Elsevier Science B.V. All rights reserved.

Item Type:	Journal Article
Subjects:	Q Science > QA Mathematics Q Science > QC Physics
Journal or Publication Title:	PHYSICA D
Publisher:	ELSEVIER SCIENCE BV
ISSN:	0167-2789
Official Date:	1 September 2000
Dates:	Date Event 1 September 2000 UNSPECIFIED
Volume:	143
Number:	1-4
Number of Pages:	35
Page Range:	pp. 74-108
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/13097

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