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          Institute: MPI für Physik Komplexer Systeme     Collection: Structure formation and active systems     Display Documents



ID: 478791.0, MPI für Physik Komplexer Systeme / Structure formation and active systems
Drifting pattern domains in a reaction-diffusion system with nonlocal coupling
Authors:Nicola, E. M.; Or-Guil, M.; Wolf, W.; Bär, M.
Language:English
Date of Publication (YYYY-MM-DD):2002-05
Title of Journal:Physical Review E
Journal Abbrev.:Phys. Rev. E
Volume:65
Issue / Number:5
Sequence Number of Article:055101
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:Drifting pattern domains (DPDs), i.e., moving localized patches of traveling waves embedded in a stationary (Turing) pattern background and. vice versa, are observed in simulations of a reaction-diffusion model with nonlocal coupling. Within this model, a region of bistability between Turing patterns and traveling waves arises from a codimension-2 Turing-wave bifurcation (TWB). DPDs are found within that region in a substantial distance from the TWB. We investigated the dynamics of single interfaces between Turing and wave patterns. It is found that DPDs exist due to a locking of the interface velocities, which is imposed by the absence of space-time defects near these interfaces.
External Publication Status:published
Document Type:Article
Communicated by:Heidrun Näther
Affiliations:MPI für Physik Komplexer Systeme/Groups of young researchers/Pattern Formation in Reaction-Diffusion Processes
External Affiliations:Max Planck Inst Phys Komplexer Syst, Nothnitzer Str 38, D-01187; Dresden, Germany; Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
Identifiers:ISI:000176552500001
ISSN:1063-651X
URL:http://ojps.aip.org/getabs/servlet/GetabsServlet?p...
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