Spiral Waves: Linear and Nonlinear Theory
Spiral Waves: Linear and Nonlinear Theory
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螺旋波:线性和非线性理论
DOI:
10.1090/memo/1413
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发表时间:
2023
影响因子:
1.9
通讯作者:
Scheel, Arnd
中科院分区:
文献类型:
--
作者:
Sandstede, Björn;Scheel, Arnd
Spiral waves are striking self-organized coherent structures that organize spatio-temporal dynamics in dissipative, spatially extended systems. In this paper, we provide a conceptual approach to various properties of spiral waves. Rather than studying existence in a specific equation, we study properties of spiral waves in general reaction-diffusion systems. We show that many features of spiral waves are robust and to some extent independent of the specific model analyzed. To accomplish this, we present a suitable analytic framework, spatial radial dynamics, that allows us to rigorously characterize features such as the shape of spiral waves and their eigenfunctions, properties of the linearization, and finite-size effects. We believe that our framework can also be used to study spiral waves further and help analyze bifurcations, as well as provide guidance and predictions for experiments and numerical simulations. From a technical point of view, we introduce non-standard function spaces for the well-posedness of the existence problem which allow us to understand properties of spiral waves using dynamical systems techniques, in particular exponential dichotomies. Using these pointwise methods, we are able to bring tools from the analysis of one-dimensional coherent structures such as fronts and pulses to bear on these inherently two-dimensional defects.
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DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
Y. Latushkin;A. Pogan
通讯作者:
A. Pogan
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
Y. Latushkin;A. Pogan
通讯作者:
A. Pogan
影响因子:
2.9
作者:
C. Marcotte;R. Grigoriev
通讯作者:
R. Grigoriev
影响因子:
1.1
作者:
J. Greenberg
通讯作者:
J. Greenberg
影响因子:
158.5
作者:
ROSENBAUM, DS;JACKSON, LE;COHEN, RJ
通讯作者:
COHEN, RJ