Kuramoto Yoshiki KURAMOTO Yoshiki

ID:1000040037247

Department of Physics, Graduate School of Sciences, Kyoto University (2003年 CiNii収録論文より)

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Articles:  1-20 of 32

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  • Wave Propagation in Nonlocally Coupled Oscillators with Noise

    SHIOGAI Yuri , KURAMOTO Yoshiki

    The onset of undamped wave propagation in noisy self-oscillatory media is identified with a Hopf bifurcation of the corresponding effective dynamical system obtained by properly renormalizing the effe …

    Progress of Theoretical Physics (150), 435-438, 2003-09-30

    DOI  NDL Digital Collections  References (4) Cited by (1)

  • Rotating Spirals without Phase Singularity in Reaction-Diffusion Systems

    KURAMOTO Yoshiki , SHIMA Shin-ichiro

    Rotating spiral waves without phase singularity are found to arise in a certain class of three-component reaction-diffusion systems of biological relevance. It is argued that this phenomenon is univer …

    Progress of Theoretical Physics (150), 115-125, 2003-09-30

    DOI  NDL Digital Collections  References (12)

  • Scaling Behavior of Turbulent Oscillators with Non-Local Interaction

    KURAMOTO Yoshiki , Department of Physics Kyoto University

    A general class of models is proposed for populations of biologically oscillating cells secreting substance whose rapid diffusion mediates the cell-cell interaction. Under certain conditions, such mod …

    Progress of Theoretical Physics 94(3), 321-330, 1995-09-25

    J-STAGE  References (13) Cited by (2)

  • Collective Chaos in a Population of Globally Coupled Oscillators

    NAKAGAWA N. , Yoshiki KURAMOTO , Department of Physics Kyoto University , Department of Physics Kyoto University

    Different forms of collective chaos are found in a large population of globally coupled identical oscillators of the complex Ginzburg-Landau type. Under certain conditions, the entire population split …

    Progress of Theoretical Physics 89(2), p313-323, 1993-02

    DOI  Cited by (4)

  • Neural Network Model Carrying Phase Information with Application to Collective Dynamics

    KURAMOTO Yoshiki

    Progress of Theoretical Physics 87(5), p1119-1126, 1992-05

    Cited by (1)

  • Mutual Entrainment between Populations of Coupled Oscillators

    Koji OKUDA , Yoshiki KURAMOTO , Department of Physics Kyoto University , Department of Physics Kyoto University

    Collective oscillations in a system of multiple populations of limit-cycle oscillators are studied. The oscillators are identical in each population, and besides their mutual coupling they are subject …

    Progress of Theoretical Physics 86(6), p1159-1176, 1991-12

    DOI 

  • On the Reduction of Evolution Equations in Extended Systems--The Underlying Universal Structure (Complex Dynamics in Nonlinear Systems)

    KURAMOTO Yoshiki

    A simple geometrical picture incorporates a number of important notions such as adiabatic elimination, removal of secularity, solvability condition, normal form and functional ansatz, i.e., notions as …

    Progress of theoretical physics (suppl 99), p244-262, 1990-03

    DOI  NDL Digital Collections  Cited by (3)

  • Mutual Entrainment in Oscillator Lattices with Nonvariational Type Interaction

    SAKAGUCHI H. , Shigeru SHINOMOTO , Yoshiki KURAMOTO , Department of Physics Kyoto University , Department of Physics Kyoto University , Department of Physics Kyoto University

    A model system for limit cycle oscillators distributed on a d-dimensional cubic lattice is studied. This model has the form φ^^._i=ω_i-KΣ_<j∈Ni>{sin(φ_i-φ_j+α)-sinα}, i=1, 2…L^d, where φ_i is th …

    Progress of Theoretical Physics 79(5), p1069-1079, 1988-05

    DOI  Cited by (1)

  • Phase Transitions and Their Bifurcation Analysis in a Large Population of Active Rotators with Mean-Field Coupling

    SAKAGUCHI H. , Shigeru SHINOMOTO , Yoshiki KURAMOTO , Department of Physics Kyoto University , Department of Physics Kyoto University , Department of Physics Kyoto University

    Bifurcation structures associated with the onset of macrosopic rhythms in a large population of active rotators are analyzed theoretically and numerically. The phase transition involving hysteresis fo …

    Progress of Theoretical Physics 79(3), p600-607, 1988-03

    DOI  Cited by (5)

  • Local and Global Self-Entrainments in Oscillator Lattices

    SAKAGUCHI H. , Shigeru SHINOMOTO , Yoshiki KURAMOTO , Department of Physics Kyoto University , Department of Physics Kyoto University , Department of Physics Kyoto University

    By computer simulations of an active rotator model, it is found that 1-, 2- and 3-dimensional oscillator lattices with distributed natural frequencies with distributed natural frequencies exhibit pecu …

    Progress of Theoretical Physics 77(5), p1005-1010, 1987-05

    DOI  Cited by (3)

  • A Soluble Active Rotator Model Showing Phase Transitions via Mutual Entrainment

    SAKAGUCHI H. , Yoshiki KURAMOTO , Department of Physics Kyoto University , Department of Physics Kyoto University

    some analytical results are obtained for a large population of limit-cycle oscillators modelled by a set of deterministic equations φ_i=ω_i-N^<-1>KΣ^N_<j=1>sin(φ_i-φ_j+α)(i=1,2,…,N), where …

    Progress of Theoretical Physics 76(3), p576-581, 1986-09

    DOI  Cited by (7)

  • Cooperative Phenomena in Two-Dimensional Active Rotator Systems

    Shigeru SHINOMOTO , Yoshiki KURAMOTO , Research Institute for Fundamental Physics Kyoto University , Department of Physics Kyoto University

    Phase transitions of active rotator systems with short-range coupling are discussed. the constituents of the system which we call active rotators are represented by a phase model of a limit-cycle osci …

    Progress of Theoretical Physics 75(6), p1319-1327, 1986-06

    DOI 

  • Phase Transitions in Active Rotator Systems

    SHINOMOTO S. , Yoshiki KURAMOTO , Research Institute for Fundamental Physics Kyoto University , Department of Physics Kyoto University

    In order to study the statistical dynamics of a large population of limit cycle oscillators or excitable elements, an active rotator model is introduced. This is defined dynamically as a stochastic ve …

    Progress of Theoretical Physics 75(5), p1105-1110, 1986-05

    DOI  Cited by (10)

  • Cooperative Dynamics of Oscillator Community--A Study Based or Lattice of Rings

    KURAMOTO Yoshiki

    A phase description of systems of many limit cycle oscillators is established. As a result, the systems are reduced to populations of simple elements called rings, their mutual coupling depending only …

    Progress of theoretical physics (suppl 79), p223-240, 1985-03

    DOI  NDL Digital Collections  Cited by (4)

  • Random Frequency Modulation of a Forced Nonlinear Oscillator

    Yoshiki KURAMOTO , Shigeru SHINOMOTO , Research Institute for Fundamental Physics Kyoto University , Research Institute for Fundamental Physics Kyoto University

    A phase model of a randomly frequency-modulated limit cycle oscillator with external periodic force is studied. Our numerical analysis reveals the following: (1) The spectrum always shows an infinitel …

    Progress of Theoretical Physics 73(3), p638-648, 1985-03

    DOI 

  • Spectral Anomaly in Propagating Pulse Trains

    Takao TODANI , Yoshiki KURAMOTO , Department of Physics Kyoto University , Research Institute for Fundamental Physics Kyoto University

    The phase-dynamics idea is applied to the ordering process of a randomly generated pulse train which travels on a line. The frequency spectrum of the local number density of pulses is shown by qualita …

    Progress of Theoretical Physics 72(6), p1248-1251, 1984-12

    DOI 

  • Phase Dynamics of Weakly Unstable Periodic Structures

    KURAMOTO Y. , Research Institute for Fundamental Physics Kyoto University

    Nonlinear phase dynamics of weakly unstable two-dimensional periodic patterns is studied. Four distinct physical situations are specifically considered. They correspond to the Eckhaus instability and …

    Progress of Theoretical Physics 71(6), p1182-1196, 1984-06

    DOI  Cited by (2)

  • Instability and Turbulence of Wavefronts in Reaction Systems

    Yoshiki KURAMOTO , Department of Physics Kyoto University

    The theoretical possibility of a new kind of diffusion-induced chemical turbulence is discussed. Here the nearly planar wavefront of a pulse or phase-boundary propagating through a more than one-dimen …

    Progress of Theoretical Physics 63(6), p1885-1903, 1980-06

    DOI 

  • Localized Patterns in Reaction-Diffusion Systems

    KOGA S. , Yoshiki KURAMOTO , Department of Physics Kyoto University , Department of Physics Kyoto University

    A new chemical pattern is discussed, which is a propagationless solitary island in an infinite medium. We demonstrate analytically its existence and stability for a certain simple model. The localizat …

    Progress of Theoretical Physics 63(1), p106-121, 1980-01

    DOI  Cited by (3)

  • Breakdown of Synchronized State in a Self-Oscillatory Chemical Reaction System

    Tomoji YAMADA , Yoshiki KURAMOTO , Department of Physics Kyusyu Institute of Technology , Department of Physics Kyoto Universtiy

    Progress of theoretical physics = Progress of theoretical physics 60(6), 1935-1936, 1978-12-25

    DOI 

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