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Dispersion gap and localized spiral waves in a model for intracellular Ca2+ dynamics

Item Type:Article
Title:Dispersion gap and localized spiral waves in a model for intracellular Ca2+ dynamics
Creators Name:Falcke, M. and Or-Guil, M. and Baer, M.
Abstract:The dispersion relation is the dependence of the velocity of periodic planar wave trains on their wavelength. We study the occurrence of a velocity gap in the dispersion relation in a bistable three component reaction-diffusion system modeling intracellular Ca2+ dynamics. In two spatial dimensions, localized pinned spirals are observed, if their wavelength falls into the dispersion gap. Destruction of free spirals occurs already for conditions where the asymptotic planar wave train exists and the dispersion gap is absent.
Keywords:Calcium, Cell Physiological Phenomena, Biological Models, Periodicity
Source:Physical Review Letters
ISSN:0031-9007
Publisher:American Physical Society (U.S.A.)
Volume:84
Number:20
Page Range:4753-4756
Date:15 May 2000
Official Publication:https://doi.org/10.1103/PhysRevLett.84.4753
PubMed:View item in PubMed

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