直近一年間の累計
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ID 115703
著者
稲葉, 直彦 Meiji University
Sekikawa, Munehisa Utsunomiya University
Shinotsuka, Yoshimasa Meiji University
Kamiyama, Kyohei Meiji University
藤本, 憲市 The University of Tokushima KAKEN研究者をさがす
Endo, Tetsuro Meiji University
資料タイプ
学術雑誌論文
抄録
Bifurcation transitions between a 1D invariant closed curve (ICC), corresponding to a 2D torus in vector fields, and a 2D invariant torus (IT), corresponding to a 3D torus in vector fields, have been the subjects of intensive research in recent years. An existing hypothesis involves the bifurcation boundary between a region generating an ICC and a region generating an IT. It asserts that an IT would be generated from a stable fixed point as a consequence of two Hopf (or two Neimark–Sacker) bifurcations. We assume that this hypothesis may puzzle many researchers because it is difficult to assess its validity, although it seems to be a reasonable bifurcation scenario at first glance. To verify this hypothesis, we conduct a detailed Lyapunov analysis for a coupled delayed logistic map that can generate an IT, and indicate that this hypothesis does not hold according to numerical results. Furthermore, we show that a saddle-node bifurcation of unstable periodic points does not coincide with the bifurcation boundary between an ICC and an IT. In addition, the bifurcation boundaries of torus doubling do not coincide with a period-doubling bifurcation of unstable periodic points. To conclude, torus bifurcations have no relation with the bifurcations of unstable periodic points. Additionally, we exactly derive a quasi-periodic Hopf bifurcation boundary introducing a double Poincaré map.
掲載誌名
Progress of Theoretical and Experimental Physics
ISSN
20503911
出版者
The Physical Society of Japan|Oxford University Press
2014
2
開始ページ
023A01
発行日
2014-02-01
備考
著者英表記誤記あり (誤)Naohikio Inaba →(正)Naohiko Inaba
権利情報
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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言語
eng
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部局
医学系