Absolute versus convective instability of spiral waves

被引：59
|
作者：
Sandstede, B
Scheel, A
机构：
[1] Ohio State Univ, Dept Math, Columbus, OH 43210 USA
[2] Free Univ Berlin, Inst Math 1, D-14195 Berlin, Germany
来源：
PHYSICAL REVIEW E | 2000年 / 62卷 / 06期
关键词：
D O I：
10.1103/PhysRevE.62.7708
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Absolute and convective instabilities of spirals are investigated using the continuous and the so-called absolute spectrum. It is shown that the nature of transport, induced by an absolute instability, is determined by spectral data of the asymptotic wave trains. The results are applied to core and far-field breakup of spiral waves in excitable and oscillatory media.
引用
收藏
页码：7708 / 7714
页数：7
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