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Chiyawanya Tsuyoshi

茶碗谷　毅

Graduate School of Information Science and Technology　Department of Pure and Applied Mathematics, Associate Professor

Research History

  • 2007/04 - Present, 大阪大学大学院・情報科学研究科・情報基礎数学専攻・准教授
  • 2002/04 - 2007/03, 大阪大学大学院・情報科学研究科・情報基礎数学専攻・助教授
  • 1999/10 - 2002/03, 大阪大学大学院・理学研究科・数学専攻・講師
  • 1997/06 - 1999/09, 大阪大学大学院・理学研究科・物理学専攻・助手
  • 1995/06 - 1997/05, 東北大学・電気通信研究所・非常勤講師（COE研究員）

Research Areas

  • Natural sciences, Mathematical physics and basic theory
  • Natural sciences, Mathematical analysis
  • Informatics, Intelligent informatics

Professional Memberships

  • 日本物理学会

Papers

  • Analysis of unstable periodic orbits characterizing weak generalized synchronization, Takahashi Noi,Tsugawa Satoru,Chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 73.2, p. 2438-2438, 2018
  • Multi-affinity and phase sensitivity of strange nonchaotic attractors, Noi Takahashi,Tsuyoshi Chawanya,Yoji Aizawa, Journal of the Physical Society of Japan, PHYSICAL SOC JAPAN, Vol. 87, No. 2, p. 024003-024003, 2018
  • Swing casting boost for confined domain wall breathing, Katsuyoshi Matsushita,Munetaka Sasaki,Tsuyoshi Chawanya, Journal of the Physical Society of Japan, PHYSICAL SOC JAPAN, Vol. 83, No. 1, p. 013801-013801, 2014/01/15
  • Chaos in ac-driven motion of confined magnetic domain wall, Katsuyosh Matsushita,Munetak Sasaki,Tsuyoshi Chawanya, Journal of the Physical Society of Japan, PHYSICAL SOC JAPAN, Vol. 81, No. 6, p. 063801-063801, 2012/06
  • Generally emerging intermittent status transitions in a high-dimensional chaotic system, Tsuyoshi Chawanya,Daisuke Yamaji,Yasuhiro Shimaguchi,Shun Shigeta, Progress of Theoretical Physics, PROGRESS THEORETICAL PHYSICS PUBLICATION OFFICE, Vol. 125, No. 5, p. 879-920, 2011/05
  • A minimal system with a depth-two heteroclinic network, Tsuyoshi Chawanya,Peter Ashwin, Dynamical Systems, TAYLOR & FRANCIS LTD, Vol. 25, No. 3, p. 397-412, 2010/09
  • Robust 2-band intermittency in high-dimensional globally coupled tent map systems, Tsuyoshi Chawanya, Progress of Theoretical Physics Supplement, PROGRESS THEORETICAL PHYSICS PUBLICATION OFFICE, Vol. 161, No. 161, p. 169-172, 2006
  • Quasistable states in globally coupled tent map systems, Tsuyoshi Chawanya, Chaos, AMER INST PHYSICS, Vol. 13, No. 3, p. 982-989, 2003/09
  • Slow switching near a blowout bifurcation - Yet another mechanism -, Ayano Fujita,Tsuyoshi Chawanya, Progress of Theoretical Physics, PROGRESS THEORETICAL PHYSICS PUBLICATION OFFICE, Vol. 109, No. 1, p. 139-144, 2003/01
  • Collective motions in globally coupled tent maps with stochastic updating, Satoru Morita,Tsuyoshi Chawanya, Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, AMER PHYSICAL SOC, Vol. 65, No. 4, 2002/04
  • Large-Dimensional Replicator Equations with Antisymmetric Random Interactions, Tsuyoshi Chawanya,Kei Tokita, Journal of the Physical Society of Japan, PHYSICAL SOC JAPAN, Vol. 71, No. 2, p. 429-431, 2002/02
  • Collective motions in globally coupled tent maps with stochastic updating, Satoru Morita,Tsuyoshi Chawanya, Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, American Physical Society (APS), Vol. 65, No. 4, p. 6-46201, 2002
  • Noiseless collective motion out of noisy chaos, Tatsuo Shibata,Tsuyoshi Chawanya,Kunihiko Kaneko, Physical Review Letters, AMER PHYSICAL SOC, Vol. 82, No. 22, p. 4424-4427, 1999
  • On the bifurcation structure of the mean-field fluctuation in the globally coupled tent map systems, Tsuyoshi Chawanya,Satoru Morita, Physica D: Nonlinear Phenomena, ELSEVIER SCIENCE BV, Vol. 116, No. 1-2, p. 44-70, 1998
  • Coexistence of infinitely many attractors in a simple flow, Tsuyoshi Chawanya, Physica D: Nonlinear Phenomena, ELSEVIER SCIENCE BV, Vol. 109, No. 3-4, p. 201-241, 1997
  • Infinitely many attractors in game dynamics system, Tsuyoshi Chawanya, Progress of Theoretical Physics, KYOTO UNIV, Vol. 95, No. 3, p. 679-684, 1996/03
  • A New Type of Irregular Motion in a Class of Game Dynamics Systems, Tsuyoshi Chawanya, Progress of Theoretical Physics, KYOTO UNIV, Vol. 94, No. 2, p. 163-179, 1995
  • A model for feature linking via collective oscillations in the primary visual cortex, Tsuyoshi Chawanya,Toshio Aoyagi,Ikuko Nishikawa,Koji Okuda,Yoshiki Kuramoto, Biological Cybernetics, Springer Science and Business Media LLC, Vol. 68, No. 6, p. 483-490, 1993/04
  • Neural network model carrying phase information with application to collective dynamics, Yoshiki Kuramoto,Toshio Aoyagi,Ikuko Nishikawa,Tsuyoshi Chawanya,Koji Okuda, PROGRESS OF THEORETICAL PHYSICS, KYOTO UNIV, Vol. 87, No. 5, p. 1119-1126, 1992/09

Misc.

  • 非カオス的ストレンジアトラクターのマルチアフィン特性 (ランダム力学系理論とその応用), 高橋 野以,茶碗谷 毅, 数理解析研究所講究録, 京都大学数理解析研究所, No. 2028, p. 113-119, 2017/05
  • 準周期外力2次写像系でみられる "SNA" と "riddled basin" (ランダム力学系理論とその応用), 茶碗谷 毅, 数理解析研究所講究録, 京都大学数理解析研究所, No. 2028, p. 29-30, 2017/05
  • Multi-affine graph appearing in weak generalized synchronization, Takahashi Noi,Chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 72, No. 0, p. 2987-2987, 2017
  • relationship between switching of on-off intermittency and nonhyperbolicity, Takahashi Noi,Chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 72, No. 0, p. 2650-2650, 2017
  • 19aBC-2 Characterization of "weakness" for weak generalized synchronization, Takahashi Noi,Chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 71, No. 0, p. 2770-2770, 2016
  • On the fractal structure of strange nonchaotic attractor and the mechanism of its formation (Special Issue on New Challenges in Complex Systems Science), Vol. 11, p. 175-178, 2015/03
  • 22pPSB-37 Formation Mechanism of the Fractal Structure of Strange Nonchaotic Attractor, Takahashi Noi,Chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 70, No. 0, p. 3070-3070, 2015
  • 23pBL-4 On Descrimination methods of SNA using coarse grained temporal series data, Chawanya Tsuyoshi,Ajioka Akihide,Takahashi Noi,Sakai Takafumi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 70, No. 0, p. 3136-3136, 2015
  • 23pBL-7 Bifurcations of chaotic attractors in quasiperiodically forced systems II, Sakai T.,Chawanya T., Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 70, No. 0, p. 3139-3139, 2015
  • 16pCX-11 Information Processing Capacity of Strange Non-chaotic Attractors, Nakajima K.,Chawanya T.,Aoyagi T., Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 70, No. 0, p. 2605-2605, 2015
  • 17pPSA-62 Multifractal property and anomalous diffusion of strange nonchaotic attractor, Takahashi Noi,Chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 70, No. 0, p. 2713-2713, 2015
  • 28aAK-8 On the break down process of weak generalized synchronization in chaotically driven systems, Chawanya Tsuyoshi,Sakai Takafumi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 69, No. 0, p. 319-319, 2014
  • 29pAD-14 Creation of riddled basin in quasi-periodically forced systems, Sakai T.,Chawanya T., Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 69, No. 0, p. 344-344, 2014
  • 9aAN-14 Bifurcations of chaotic attractors in quasiperiodically forced systems, Sakai T.,Chawanya T., Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 69, No. 0, p. 153-153, 2014
  • 9pAN-11 Fractal structure of strange nonchaotic attractors generated by the repellers, Takahashi Noi,Chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 69, No. 0, p. 164-164, 2014
  • 大自由度散逸力学系における熱力学的分岐現象について (力学系の作る集団ダイナミクス : 保存系・散逸系の枠組みを越えて : RIMS研究集会報告集), 茶碗谷 毅, 数理解析研究所講究録, 京都大学, Vol. 1827, No. 1827, p. 33-41, 2013/03
  • 27aXR-7 The relation between bifurcations for quasi-periodically forced logistic map systems and the creation of SNA for the fractalization, Sakai T.,Chawanya T., Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 68, No. 0, p. 347-347, 2013
  • 27pXM-12 On the mechanisms of emergence of complex behavior in quasi-periodically forced logistic map systems, Chawanya Tsuyoshi,Sakai Takafumi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 68, No. 0, p. 360-360, 2013
  • Similarity and difference between strange nonchaotic attractors and attractors with riddeld basins, Chawanya Tsuyoshi,Sakai Takafumi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 68, No. 0, p. 293-293, 2013
  • Bifurcations of invariant sets in quasi-periodically forced systems, Sakai T.,Chawanya T., Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 68, No. 0, p. 293-293, 2013
  • Resonance-driven oscillation of Domain-Wall Spin-Torque Oscillator under dc : Swing Casting mechanism, Matsushita Katsuyoshi,Sasaki Munetaka,Chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 68, No. 0, p. 366-366, 2013
  • 27pBF-7 Observation of repellers in quasi-periodically forced logistic map systems (1) : Numerical algorithm, Chawanya T.,Sakai T., Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 67, No. 0, p. 382-382, 2012
  • 27pBF-8 Observation of repellers in quasi-periodically forced logistic map systems (2) : Creation of SNA, Sakai T.,Chawanya T., Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 67, No. 0, p. 382-382, 2012
  • 18pPSA-25 Chaos Motion of AC-Driven Confined Domain Wall, Matsushita Katsuyoshi,Sasaki Munetaka,Chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 67, No. 0, p. 405-405, 2012
  • 20pAA-9 Emergence of peculiar nonlinearity around hierarchical heteroclinic networks, Chawanya T., Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 67, No. 0, p. 289-289, 2012
  • Shape of oscillator networks optimized for synchronization, CHAWANYA Tsuyoshi,IGA Shiro,IBA Yukito,AOYAGI Toshio, Vol. 26, No. 2, p. 245-246, 2011/12/01
  • スーパーコンピューティング・コンテスト2009, 茶碗谷 毅, 数学セミナー, 日本評論社, Vol. 48, No. 12, p. 49-53, 2009/12
  • 22aYO-6 On the mechanism of emergence of long time correlation in globally coupled map systems, Chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 60, No. 0, p. 200-200, 2005
  • A Kind of intermittency similars to but differents from on-off intermittency, Fujita Ayano,Chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 57, No. 0, p. 224-224, 2002
  • Diversity Dynamics of a Lotica-Volterra System with Random Food Web Interactions, Tokita Keiitiro,Chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 57, No. 0, p. 278-278, 2002
  • レプリケーター系における多様性を考える (2000年度 基礎物理学研究所研究会「大自由度進化モデルの力学系研究」), 茶碗谷 毅,時田 恵一郎, 物性研究, 物性研究刊行会, Vol. 77, No. 3, p. 575-580, 2001/12
  • ヘテロクリニック軌道のネットワークと関連するアトラクター (複雑な多谷ポテンシャルエネルギー面上で生起する動力学的諸問題--力学的決定性と統計性の中間領域を探る(1)), 茶碗谷 毅, 物性研究, 物性研究刊行会, Vol. 76, No. 1, p. 85-89, 2001/04
  • Machikaneyama Project, Kikuchi M.,Tokita K.,Chawanya T., Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 55, No. 0, p. 272-272, 2000
  • Quasi-periodic collective motion in weakly coupled CML systems I, CHAWANYA Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 53, No. 0, p. 645-645, 1998
  • カオス研究の最前線(11) ヘテロクリニック軌道のつくる大域的構造と軌道の特異な振舞い, 茶碗谷 毅, 数理科学, サイエンス社, Vol. 35, No. 11, p. 45-51, 1997/11
  • 生態系モデルでのサドル間遷移 (複雑系(5)), 茶碗谷 毅, 物性研究, 物性研究刊行会, Vol. 68, No. 5, p. 572-576, 1997/08
  • Temporal evolution of self-replicator systems and psudo stable states, CHAWANYA Tsuyoshi, Vol. 9, p. 243-248, 1997/01/16
  • 進化の問題を(統計)力学の立場から考える 第1部 レプリケ-タ-方程式でみられる特異な運動について (第41回物性若手夏の学校(1996年度)), 茶碗谷 毅, 物性研究, 物性研究刊行会, Vol. 67, No. 2, p. 227-236, 1996/11
  • Population dynamicsで見られる無限個のアトラクタの共存--有効な自由度の動的な変化を伴う運動の特異性について (特集 複雑系--生成と崩壊のダイナミクス), 茶碗谷 毅, 数理科学, サイエンス社, Vol. 34, No. 6, p. 44-49, 1996/06
  • ランダムに相互作用する多数の種の決定論的個体数動力学の力学的振舞いと絶滅法則(動的ネットワークの複雑化と進化,基研長期研究会「複雑系」,研究会報告), 佐々 真一,茶碗谷 毅, 物性研究, 物性研究刊行会, Vol. 63, No. 6, p. 696-696, 1995
  • 27p-PS-120 Behavior of Bursting Neuron Population, Aoyagi Toshio,Kuramoto Yoshiki,Chawanya Tsuyoshi,Okuda Kouji,Nishikawa Ikuko, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 47, No. 0, p. 418-418, 1992
  • Neural nets and Phase information., KURAMOTO Y,AOYAGI T,NISHIKAWA I,CHAWANYA T,OKUDA K, 次世代産業基盤技術新機能素子技術シンポジウム予稿集, Vol. 10th, p. 157-162, 1991/10
  • 視覚情報処理における集団引き込み(カオスとその周辺,研究会報告), 蔵本 由紀,西川 郁子,青柳 富誌生,奥田 浩司,茶碗 谷毅, 物性研究, 物性研究刊行会, Vol. 56, No. 2, p. 217-218, 1991
  • 14.パルス的相互作用を持つ興奮性素子の集団的振舞い(京都大学大学院理学研究科物理学第一専攻,修士論文題目・アブストラクト(1990年度)), 茶碗谷 毅, 物性研究, 物性研究刊行会, Vol. 57, No. 1, p. 121-123, 1991
  • 24p-H-4 Collective Synchronization in Visual Information Processing, Kuramoto Yoshiki,Nishikawa Ikuko,Aoyagi Toshio,Okuda Koji,chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 1991, No. 0, p. 411-411, 1991
  • 27p-BPS-50 Behavior of Pulse Coupled Oscillator Popuplation I, AOYAGI Toshio,KURAMOTO Yoshiki,CHAWANYA Tsuyoshi,OKUDA Kouji,NISHIKAWA Ikuko, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 46, No. 0, p. 427-427, 1991
  • 28a-T-8 Behavior of Pulse Coupled Oscillator Popuplation II, CHAWANYA Tsuyoshi,KURAMOTO Yoshiki,AOYAGI Toshio,OKUDA Kouji,NISHIKAWA Ikuko, Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, Vol. 46, No. 0, p. 436-436, 1991

Presentations

  • Bifurcation phenomena of collective behavior in the globally coupled Bernoulli map system, Tsuyoshi Chawanya,Michinobu Nakayama, JPS 76th Annual Meeting, The Physical Society of Japan, 2021/03/12
  • Analysis of unstable periodic orbits characterizing weak generalized synchronization, Takahashi Noi,Tsugawa Satoru,Chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, 2018
  • relationship between switching of on-off intermittency and nonhyperbolicity, Takahashi Noi,Chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, 2017
  • Multi-affine graph appearing in weak generalized synchronization, Takahashi Noi,Chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, 2017
  • 19aBC-2 Characterization of "weakness" for weak generalized synchronization, Takahashi Noi,Chawanya Tsuyoshi, Meeting Abstracts of the Physical Society of Japan, 2016
  • 16pCX-11 Information Processing Capacity of Strange Non-chaotic Attractors, Nakajima K,Chawanya T,Aoyagi T, 日本物理学会講演概要集, 2015/09/16
  • Observation of repellers in quasi-periodically forced logistic map systems (1) --- Numerical algorithm, Tsuyoshi Chawanya,Takafumi Sakai, 2012/03
  • Observation of repellers in quasi-speriodically forced logistic map systems (2) --- Creation of SNA, Takafumi Sakai,Tsuyoshi Chawanya, 2012/03
  • 大域結合テントマップ系における平均場のゆらぎの分岐構造について(共著), 1997

Academic Activities

  • サイエンスカフェ＠待兼山, 2015/12 -