ISSN 0869-6632 (Print)
ISSN 2542-1905 (Online)

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Sosnovtseva O. V., Postnov D. E., Fomin A. I. Noise-induced spatial structures in excitable media. Izvestiya VUZ. Applied Nonlinear Dynamics, 2002, vol. 10, iss. 3, pp. 125-136. DOI: 10.18500/0869-6632-2002-10-3-125-136

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Language: 
English
Heading: 
Autowaves. Self-organization
Article type: 
Article
UDC: 
537.86 631.373
DOI: 
10.18500/0869-6632-2002-10-3-125-136

Noise-induced spatial structures in excitable media

Autors: 
Sosnovtseva Olga Vladimirovna, Danmarks Tekniske Universitet
Postnov Dmitry E, Saratov State University
Fomin Anton Igorevich, Saratov State University
Abstract: 

The paper considers the formation оf coherent structures in а population of excitable systems driven by noise. We focus оп two effects. (i) A one-dimensional lattice with аt least one inhomogeneous unit demonstrates noise-induced excitation waves. The degree оf coherence in such а spatial structure саn be enhanced by tuning the noise intensity. (ii) A random distribution оf the parameters responsible for the excitatory properties and the interaction strength leads to self-organization in the form of cluster synchronization.

Key words: 
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Acknowledgments: 
This work was partly supported by grant CRDF (REC-006), grant RFBR (01-02-16709). O.S. also acknowledges INTAS grant (YSF 01/1-0023).
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Received: 
13.05.2002
Accepted: 
20.06.2002
Available online: 
12.01.2024
Published: 
30.09.2002
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