1984-1994

  • Meanfield Study of Z2 Higgs Model with Radial Excitations
    and Mode Correlation Problem    ,
    K. Kanaya and Y. Sugiyama,
    Progress of Theoretical Physics vol.72, pp. 1158-1175 (1984)

  • Meanfield Study of Radially Active U(1) and SU(2) Higgs Models,
    Y. Sugiyama and K. Kanaya,
    Progress of Theoretical Physics, vol.73, pp. 176-185 (1985)

  • Correlation Inequalities for a Class of Even Ferromagnets,
    K.-I. Kondo, T. Otofuji and Y. Sugiyama,
    Journal of Statistical Physics, vol.40, pp. 563-575 (1985)

  • Coleman-Weinberg Transition for Abelian Higgs model on the Lattice
    (Mean Field Calculations with Loop Corrections)    ,
    Y. Sugiyama and T. Yokota,
    Physics Letters 168B, pp. 386-390 (1986)

  • Mean Field Study of Coleman-Weinberg Phenomena on Lattice,
    Y. Sugiyama and T. Yokota,
    Progress of Theoretical Physics, vol.76, pp. 667-679 (1986)

  • Correlation Inequalities for Multi-Component Ferromagnets,
    K.-I. Kondo, and Y. Sugiyama,
    Journal of Mathematical Physics, vol.29, pp. 451-459 (1988)

  • Reentrant Phase Transitions in a Quantum Spin System with Random Fields,
    T. Yokota and Y. Sugiyama,
    Physical Review B37, pp. 5657-5662 (1988)

  • The Renormalization Group Study of the Effective Theory of Lattice QED,
    Y. Sugiyama,
    Proceedings of 1988 International Workshop on
    `New Trends of Strong Coupling Gauge Theories' in Miyoshi, pp. 172-180 (1989)

  • The Renormalization Group Study of the Effective Theory of Lattice QED,
    Y. Sugiyama,
    Physics Letters B223, pp. 445-450 (1989)

  • Chiral Phase Transition in the Effective Theory of QED plus
    Nambu-Jona-Lasinio model on the Lattice    ,
    Y. Sugiyama,
    Proceedings of 1989 Workshop on `Dynamical Symmetry Breaking', pp. 154-159 (1990)

  • Chiral Phase Transition of QED plus NJL model on the Lattice
    and the Renormalization Group Study    ,
    Y. Sugiyama,
    Proceedings of 1990 International Workshop on
    `Strong Coupling Gauge Theories and Beyond', pp. 326-333 (1990).

1994-97

  • Triviality Bound of Linear σ-Model with Finite Pion Mass,
    K. Kimura, A. I. Sanda and Y. Sugiyama ,
    Modern Physics Letters A, vol. 28, 2587-2597 (1994)

  • Structure Stability of Congestion in Traffic Dynamics,
    M. Bando, H. Hasebe, A. Nakayama, A. Shibata and Y. Sugiyama,
    Japan Journal of Industrial and Applied Mathematics 11 (1994) pp. 203-223

  • Dynamical Model of Traffic Congestion and Numerical Simulation,
    M. Bando, H. Hasebe, A. Nakayama, A. Shibata and Y. Sugiyama,
    Physical Review E 51 (1995) pp. 1035-1042

  • Phenomenological Study of Dynamical Model of Traffic Flow,
    M. Bando, K. Hasebe, A. Nakayama, K. Nakanishi, A. Shibata and Y. Sugiyama,
    Journal de Physique I France 5 (1995) pp. 1389-1399

  • The Exactly Solvable Simplest Model for Queue Dynamics as the Limit
    of Optimal Velocity Model for 1-d Freeway Traffic    ,
    Y. Sugiyama,
    Proceedings of '1996 Conference on Scientific Computing in Europe' in Dublin
    edited by H. J. Ruskin, R. O'Connor and Y. Feng,
    (World Scientific, Singapore) (1996) pp. 155-162

  • Dynamical Model for Congestion of Freeway Traffic and its Structural Stability,
    Y. Sugiyama,
    Proceedings of International Workshop of 'Traffic and Granular Flow' in Juelich
    edited by D. E. Wolf, M. Schreckenberg and A. Bachem,
    (World Scientific, Singapore) (1996) pp. 137-149

  • Simple and Exactly Solvable Model for Queue Dynamics,
    Y. Sugiyama and H. Yamada,
    Physical Review E 55 (1997) pp. 7749-7752

1998

  • Coupled Map Traffic Flow Simulator Based on Optimal Velocity Functions,
    S-i. Tadaki, M. Kikuchi, Y. Sugiyama and S. Yukawa,
    J. of Phys. Soc. of Japan 67, No. 7, pp. 2270-2276 (1998).

  • Aspects of Optimal Velocity Model for Traffic Flow,
    Y. Sugiyama and H. Yamada
    Proceedings of International Workshop of 'Traffic and Granular Flow '97' in Duisburg
    edited by M. Schreckenberg, D. E. Wolf
    (Springer-Verlag Singapore), pp. 301-318 (1998)

  • Coupled Map Traffic Flow Simulator Based on Optimal Velocity Functions,
    S-i. Tadaki, M. Kikuchi, Y. Sugiyama and S. Yukawa
    Proceedings of International Workshop of 'Traffic and Granular Flow '97' in Duisburg
    edited by M. Schreckenberg, D. E. Wolf
    (Springer-Verlag Singapore), pp. 373-378 (1998)

  • Traffic Flow Simulator Based on Optimal Velocity Function,
    M. Kikuchi, Y. Sugiyama, S. Tadaki and S. Yukawa
    Proceedings of the 2nd Tohwa University International Meeting on Statictical Physics in Fukuoka,
    edited by M. Tokuyama and I. Oppenheim (World Scientific), pp198- (1998).

1999

  • Optimal Velocity Model for Traffic Flow,
    Y. Sugiyama
    Computer Physics Communications 121-122, pp. 399-401 (1999)

  • Noise Induced Congested Traffic Flow in Coupled Map Optimal Velocity Model,
    S-i. Tadaki, M. Kikuchi, Y. Sugiyama and S. Yukawa,
    J. of Phys. Soc. Japan 68, No. 9, pp. 3110-3114 (1999)

  • Exact Solutions of Differential Equations with Delay for Dissipative Systems,
    K. Hasebe, A. Nakayama and Y. Sugiyama
    Physics Letters A 259, pp. 135-139 (1999)

  • Noise Induced Congested Traffic Flow in Coupled Map Optimal Velocity Model,
    S-i. Tadaki, M. Kikuchi, Y. Sugiyama and S. Yukawa,
    Proceedings of International Workshop on Soft Computing in Inductry'99,
    (IEEE Industrial Electronics Society, Muroran Institute of Technology), pp. 78-82 (1999).

2000

  • Noise Induced Congestion in Coupled Map Optimal Velocity Model
    of Traffic Flow    ,
    S. Tadaki, M. Kikuchi, Y. Sugiyama and S. Yukawa,
    Soft Computing in Industrial Applications edited by Y. Suzuki et al.
    (Springer-Verlag London) (2000).

  • Exact Traveling Cluster Solutions of Differential Equations with Delay
    for a Traffic Flow Model    ,
    K. Hasebe, A. Nakayama and Y. Sugiyama
    Proceedings of International Workshop of 'Traffic and Granular Flow '99' in Stuttgart
    edited by D. Helbing, H.J. Herrmann, M. Schreckenberg and D. E. Wolf,
    (Springer-Verlag Berlin Heiderberg), (2000) pp. 413-418

  • Congestion in Multi-Lane Coupled Map Traffic Flow Model,
    S. Tadaki, M. Kikuchi, Y. Sugiyama and S. Yukawa,
    M. Tokuyama and H. E. Stanley ed. "Statistical Physics" (AIP, 2000), pp.578-580.

  • Asymmetric optimal velocity model
    Y. Sugiyama, M. Kikuchi S-i. Tadaki and S. Yukawa
    Progress of Thoretical Physics Supplement No. 138, (2000), pp.549-554.

  • Congestion in multi-lane roads with coupled map traffic flow model
    S-i. Tadaki, M. Kikuchi, Y. Sugiyma and S. Yukawa
    Progress of Thoretical Physics Supplement No. 138, (2000), pp.594-595.

2003

  • 交通流の物理
    杉山雄規
    日本流体力学会誌, Vol.22, No.2, (2003), 94-107

  • Two-dimensional Optimal Velocity Model for Pedestrians and Biological Motion
    A. Nakayama, Y. Sugiyama
    Proceedings of Seventh Granada Lectures, (2003), 107-110

  • Understanding ``Synchronized Flow'' by Optimal Velocity Model
    Y. Sugiyama, A. Nakayama
    Modeling of Complex Systems, (2003), 111-114

  • Behaivior of Pedestrian Flow base on 2 Dimensional Optimal Velocity Model
    A. Nakayama and Y. Sugiyama
    'Pedestrian and Evacuation Dynamics 2003', (2003), 409

  • Optimal Velocity Model and its Applications -from ITS to Pedestrians-
    A. Nakayama, K. Hasebe and Y. Sugiyama
    Proceedings of International Workshop of 'Traffic and Granular Flow '01', (2003), 127-140

  • Long-term Traffic Data from Japanese Expressway
    M. Kikuchi, A. Nakayama, K. Nishinari, Y. Sugiyama, S.-i. Tadaki, S. Yukawa
    Proceedings of International Workshop of 'Traffic and Granular Flow '01, (2003), 257-262

  • Oservational Aspects of Japanese Highway Traffic
    S. Yukawa, M. Kikuchi, A. Nakayama, K. Nishinari, Y. Sugiyama, S.-i. Tadaki
    Proceedings of International Workshop of 'Traffic and Granular Flow '01, (2003), 243-256

  • Widely extended optimal velocity model of traffic flow and their linear stability
    K. Hasebe, A. Nakayama and Y. Sugiyama
    Proceedings of International Workshop of 'Traffic and Granular Flow '01, (2003), 221-226

  • Modeling Pedestrians and Granular Flow in 2-dimensional Optimal Velocity Models
    Y. Sugiyama, A. Nakayama and K. Hasebe
    Proceedings of International Workshop of 'Traffic and Granular Flow '01, (2003), 537-542

  • Congestion Indused by Bottlenecks in Two-lane Optimal Velocity Traffic Flow Model
    S-i. Tadaki, M. Kikuchi, K. Nishinari, Y. Sugiyma and S. Yukawa
    Proceedings of International Workshop of 'Traffic and Granular Flow '01, (2003), 211-220

  • Modeling, simulation and observations for freeway traffic and pedestrians
    Y. Sugiyama and A. Nakayama
    Computational Physics of Transport and Interface Dynamics, (2003), 406-421

  • Dynamical model of a cooperative driving system for freeway traffic
    K. Hasebe , A. Nakayama and Y. Sugiyama
    Physical Review E, Vol.68, (2003), 026102-1-6

  • Traffic Flow as Physics of Many-Body System
    Y.Sugiyama, M.Kikuchi, A.Nakayama, K.Nishinari, A.Shibata
    Control in Transportation Systems2003, (2004), 335-340

2004

  • Formation of Synchronized Flow at the Upper Stream of Bottleneck in Optimal Velocity Model
    M.Kikuchi, Y.Sugiyama, S.-i.Tadaki, S. Yukawa
    Control in Transportation Systems2003, (2004), 347-351

  • A Mathematical Model of Cooperative Driving System for Freeway Traffic
    K.Hasebe, A.Nakayama, Y.Sugiyama
    Control in Transportation Systems2003, (2004), 383-387

  • Equivalence of linear responce among extended optimal velocity models
    K. Hasebe , A. Nakayama and Y. Sugiyama
    Physical Review E, Vol.69, (2004), 017103-1-3

  • 物理的観点からの複雑現象の理解 ‐Self-driven粒子集団流の数理を巡って‐
    杉山雄規
    数理モデル化と問題解決シンポジウム論文集, ISSN1334‐0604, (2004), 19−26

2005

  • 多体系物理学としての交通流の観測・理論・実験
    Y. Sugiyama, A. Nakayama, M. Fukui, K. Hasebe, M. Kikuchi, K. Nshinari, S.-i. Tadaki and S. Yukawa
    Proceedings of International Workshop of 'Traffic and Granular Flow '03', (2005), 45-58

  • Fluctuation in Expressway Traffic Flow
    S.-i. Tadaki, M. Kikuchi, A. Nakayama, K. Nshinari, A. Shibata, Y. Sugiyama, S. Yukawa
    Proceedings of International Workshop of 'Traffic and Granular Flow '03', (2005), 59-66

  • Group Formation of Organisms in 2-dimensional OV model
    A. Nakayama, Y. Sugiyama
    Proceedings of International Workshop of 'Traffic and Granular Flow '03', (2005), 399-404

  • Instability of pedestrian flow and phase structure in two-dimensional optimal velocity model
    A. Nakayama, K. Hasebe, Y. Sugiyama
    Phys. Rev. E, Vol.71, (2005), 036121-1-11

2006

  • Power-Law Fluctuation in Expressway Traffic Flow: Detrended Fluctuation Analysis
    S. Tadaki, M. Kikuchi, A. Nakayama, K. Nishinari, A. Shibata, Y. Sugiyama, S. Yukawa
    J. Phys. Soc. Jpn, Vol.75, No.3, (2006), 034002

2007

  • Phase Diagram of Group Formation in 2-d Optimal Velocity Model
    Y. Sugiyama, A. Nakayama, E. Yamada
    Proceedings of International Workshop of 'Traffic and Granular Flow '05', (2007), 277-282

  • Scale-Free Features in the Observed Traffic Flow
    S. Tadaki, M. Kikuchi, A. Nakayama, K. Nishinari, A. Shibata, Y. Sugiyama, S. Yukawa
    Proceedings of International Workshop of 'Traffic and Granular Flow '05', (2007), 709-716

  • Instability of pedestrian flow in two-dimensional optimal velocity model
    A. Nakayama, K. Hasebe, Y. Sugiyama
    Computer Physics Communications, Vol.177, (2007), 162-163

2008

  • Effect of attractive interaction on instability of pedestiran flow in a two-dimensional optimal velocity model
    A. Nakayama, K. Hasebe, Y. Sugiyama
    Physical Review E, vol.77, (2008), 016105-1-9

  • Traffic jam without bottleneck -experimental evidence for the physical mechanism of the formation of a jam
    Yuki Sugiyama, Minoru Fukui, Macoto Kikuchi, Katsuya Hasebe, Akihiro Nakayama, Katsuhiro Nishinari, Shin-ichi Tadaki, Satoshi Yukawa
    New Journal of Physics, Vol.10, (2008), 033001

  • Asymmetric Interaction in Non-equilibrium Dissipative System towards Dynamics for Biological System
    Y. Sugiyama,
    Natural Computing, Y. Suzuki M. Hagita, H. Umeo, A. Adamatzky, eds., (2008), 189-200

  • Optimal Velocity Model and Hopf Bifurcation,
    M. Yamamoto, Y. Nomura, Y. Sugiyama,
    International Symposium on Frontiers of Computational Science, (2008), 235-242

2009

  • Metastability in the formation of an experimental traffic jam
    Akihiro Nakayama, Yuki Sugiyama, Minoru Fukui, Macoto Kikuchi, Katsuya Hasebe, Katsuhiro Nishinari, Shin-ichi Tadaki, Satoshi Yukawa
    New Journal of Physics, Vol.11, No.8, (2009), 083025

  • Dissipative System with Asymmetric Interaction and Hopf Bifurcation
    M. Yamamoto, Y. Nomura, Y. Sugiyama
    Phys Rev E, Vol.80, (2009), 026203

2010

  • Instability of collective flow in two-dimensional
    Ishiwata R, Sugiyama Y
    IWNC2009-Proceedings. Hiroshi U eds., (2010), Springer-Verlag