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Title: Application of a center manifold theory to a reaction-diffusion system of collective motion of camphor disks and boats (English)
Author: Ei, Shin-Ichiro
Author: Ikeda, Kota
Author: Nagayama, Masaharu
Author: Tomoeda, Akiyasu
Language: English
Journal: Mathematica Bohemica
ISSN: 0862-7959 (print)
ISSN: 2464-7136 (online)
Volume: 139
Issue: 2
Year: 2014
Pages: 363-371
Summary lang: English
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Category: math
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Summary: Unidirectional motion along an annular water channel can be observed in an experiment even with only one camphor disk or boat. Moreover, the collective motion of camphor disks or boats in the water channel exhibits a homogeneous and an inhomogeneous state, depending on the number of disks or boats, which looks like a kind of bifurcation phenomena. In a theoretical research, the unidirectional motion is represented by a traveling wave solution in a model. Hence it suffices to investigate a linearized eigenvalue problem in order to prove the destabilization of a traveling wave solution. However, the eigenvalue problem is too difficult to analyze even if the number of camphor disks or boats is 2. Hence we need to make a reduction on the model. In the present paper, we apply the center manifold theory and reduce the model to an ordinary differential system. (English)
Keyword: center manifold theory
Keyword: bifurcation
Keyword: traveling wave solution
Keyword: collective motion
MSC: 34K18
MSC: 35C07
MSC: 35K57
MSC: 37L10
MSC: 70K50
MSC: 76Z10
idZBL: Zbl 06362265
idMR: MR3238846
DOI: 10.21136/MB.2014.143861
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Date available: 2014-07-14T08:41:22Z
Last updated: 2020-07-29
Stable URL: http://hdl.handle.net/10338.dmlcz/143861
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