V-waves of excitation

Citation
P. Brazhnik et al., V-waves of excitation, CHAOS SOL F, 10(1), 1999, pp. 99-118
Citations number
79
Categorie Soggetti
Multidisciplinary
Journal title
CHAOS SOLITONS & FRACTALS
ISSN journal
09600779 → ACNP
Volume
10
Issue
1
Year of publication
1999
Pages
99 - 118
Database
ISI
SICI code
0960-0779(199901)10:1<99:VOE>2.0.ZU;2-N
Abstract
In this paper we communicate recent developments in theory, experiment, and computer simulations of V-shaped waves in excitable media. The waves appea r as the result of oblique collisions of two plane waves, and constitute a one-parametric family of V-like patterns distinguishable by the angle of co llision. The shape and position of V-patterns are stable with respect to lo calized perturbations of the front line and to some global perturbations of the medium. V-waves survive collisions with target patterns and spirals. V -patterns are a convenient tool for experimental study of the velocity-curv ature dependence for wave fronts-one of the major pattern-forming factors i n excitable media. V-waves are an important building block for constructing wave patterns in layered excitable media. (C) 1999 Elsevier Science Ltd. A ll rights reserved.