Updated on 2024/04/26

写真a

 
Takahiro Yajima
 
Organization
School of Engineering Department of Fundamental Engineering / Mechanical Systems Engineering Course Associate Professor
Graduate School of Regional Development and Creativity Division of Engineering and Agriculture (Master's Course) Graduate Program in Mechanical and Intelligent Engineering Associate Professor
Graduate School of Regional Development and Creativity Division of Advanced Transdisciplinary Science (Doctor's Course) Advanced Engineering Systems Design Program Associate Professor
Title
Associate Professor

Degree

  • 博士(理学) ( 2009.3   東北大学 )

Research Interests

  • 連続体力学

  • 非線形力学系

  • 微分幾何学

  • フィンスラー幾何学

Research Areas

  • Natural Science / Geometry

Professional Memberships

  • フィンスラー幾何学研究会

    2005 - Present

  • テンゾル学会

 

Papers

  • Application of Jacobi stability analysis to a first-order dynamical system: relation between nonlinearizability of one-dimensional differential equation and Jacobi stable region Reviewed

    Yuma Hirakui and Takahiro Yajima

    Journal of Physics Communications   8   035001   2024.3

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    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1088/2399-6528/ad2b8c

  • Classification of time-optimal paths under an external force based on Jacobi stability in Finsler space Reviewed

    Takahiro Yajima and Yuna Tazawa

    Journal of Optimization Theory and Applications   200   1216 - 1238   2024.2

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1007/s10957-023-02374-2

  • Geometric structures of micropolar continuum with elastic and plastic deformations based on generalized Finsler space Reviewed

    Takahiro Yajima and Hiroyuki Nagahama

    Mathematics and Mechanics of Solids   2023.9

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1177/10812865231188329

  • Linear Stability of Self-Similar Motions of Three Point Vortices in a Generalized Two-Dimensional Fluid System Reviewed

    Takahiro Iwayama and Takahiro Yajima

    Journal of the Physical Society of Japan   92 ( 8 )   084401   2023.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.7566/JPSJ.92.084401

  • Hodge duality between stress space and strain space in anisotropic media Reviewed

    Takahiro Yajima and Hiroyuki Nagahama

    Zeitschrift für Angewandte Mathematik und Mechanik   102 ( 12 )   e202100244   2022.9

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1002/zamm.202100244

  • Kosambi-Cartan-Chern Analysis of the Nonequilibrium Singular Point in One-Dimensional Elementary Catastrophe Reviewed

    Kazuhito Yamasaki and Takahiro Yajima

    International Journal of Bifurcation and Chaos   32 ( 4 )   2250053   2022.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1142/S0218127422500535

  • Kosambi-Cartan-Chern Stability in the Intermediate Nonequilibrium Region of the Brusselator Model Reviewed

    Kazuhito Yamasaki and Takahiro Yajima

    International Journal of Bifurcation and Chaos   32 ( 2 )   2250016   2022.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1142/S021812742250016X

  • Geometrical Classification of Self-Similar Motion of Two-Dimensional Three Point Vortex System by Deviation Curvature on Jacobi Field Reviewed

    Hirakui Yuma Takahiro Yajima

    Advances in Mathematical Physics   2021

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Geometric interpretation of maximal Lyapunov exponent based on deviation curvature Reviewed

    Takahiro Yajima Shintaro Nakase

    International Journal of Geometric Methods in Modern Physics   2021.1

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    Language:English   Publishing type:Research paper (scientific journal)  

  • KCC Analysis of a One-Dimensional System During Catastrophic Shift of the Hill Function: Douglas Tensor in the Nonequilibrium Region Reviewed

    Kazuhito Yamasaki Takahiro Yajima

    International Journal of Bifurcation and Chaos   2020

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Geometry of curves with fractional-order tangent vector and Frenet-Serret formulas Reviewed

    Takahiro Yajima Shunya Oiwa Kazuhito Yamasaki

    Fractional Calculus and Applied Analysis   6 ( 21 )   2019.2

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Non-holonomic geometric structures of rigid body system in Riemann-Cartan space Reviewed

    Takahiro Yajima Kazuhito Yamasaki Hiroyuki Nagahama

    Journal of Physics Communications   8 ( 2 )   2018

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:IOP Publishing Ltd  

  • Geometric Structures of Fractional Dynamical Systems in Non-Riemannian Space: Applications to Mechanical and Electromechanical Systems Reviewed

    Takahiro Yajima Hiroyuki Nagahama

    Annalen der Physik   530 ( 5 )   1700391   2018.3

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • KCC Analysis of the Normal Form of Typical Bifurcations in One-Dimensional Dynamical Systems: Geometrical Invariants of Saddle-Node, Transcritical, and Pitchfork Bifurcations Reviewed

    Kazuhito Yamasaki Takahiro Yajima

    International Journal of Bifurcation and Chaos   27   1750145   2017

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Jacobi stability analysis and chaotic behavior of nonlinear double pendulum Reviewed

    Shunya Oiwa Takahiro Yajima

    International Journal of Geometric Methods in Modern Physics   14   1750176   2017

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Finsler geometry of topological singularities for multi‐valued fields: Applications to continuum theory of defects Reviewed

    Takahiro Yajima Hiroyuki Nagahama

    Annalen der Physik   528 ( 11-12 )   845 - 851   2016.12

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • Differential geometric structure of non-equilibrium dynamics in competition and predation: Finsler geometry and KCC theory Reviewed

    Kazuhito Yamasaki Takahiro Yajima

    Journal of Dynamical Systems and Geometric Theories   14 ( 2 )   137 - 153   2016.10

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • Jacobi stability for dynamical systems of two-dimensional second-order differential equations and application to overhead crane system Reviewed

    Takahiro Yajima Kazuhito Yamasaki

    International Journal of Geometric Methods in Modern Physics   4 ( 13 )   1650045   2016

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:World Scientific Publishing Company  

  • Fractional Calculus Approach to the Deformation Field near the Fault Zone Reviewed

    Kazuhito Yamasaki Takahiro Yajima

    Austin Journal of Earth Science   3 ( 2 )   1018   2015

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Austin Publishing Group  

  • Finsler geometry for nonlinear path of fluids flow through inhomogeneous media Reviewed

    Takahiro Yajima Hiroyuki Nagahama

    Nonlinear Analysis: Real World Applications   25 ( 1 )   1 - 8   2015

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier  

  • Geometry of stress function surfaces for an asymmetric continuum Reviewed

    Takahiro Yajima Kazuhito Yamasaki Hiroyuki Nagahama

    Acta Geophysica   61 ( 6 )   1703 - 1721   2013

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Lotka-Volterra system and KCC theory: Differential geometric structure of competitions and predations Reviewed

    Kazuhito Yamasaki Takahiro Yajima

    Nonlinear Analysis: Real World Applications   14 ( 4 )   1845 - 1853   2013

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Fractional-order derivative and time-dependent viscoelastic behaviour of rocks and minerals Reviewed

    Yusuke Kawada Takahiro Yajima Hiroyuki Nagahama

    Acta Geophysica   61 ( 6 )   1690 - 1702   2013

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Finsler metric and anisotropic media in seismic ray theory

    Takahiro Yajima Kazuhito Yamasaki Hiroyuki Nagahama

    Proceedings of G-COE Symposium 2012, Achievements of G-COE Program for Earth Planetary Dynamics and the Future Perspective   31 - 32   2012

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    Language:English   Publishing type:Research paper (international conference proceedings)  

  • Differential geometric approach to the stress aspect of a fault: Airy stress function surface and curvatures Reviewed

    Kazuhito Yamasaki Takahiro Yajima

    Acta Geophysica   60 ( 1 )   4 - 23   2012

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Geometry of surfaces with Caputo fractional derivatives and applications to incompressible two-dimensional flows Reviewed

    Takahiro Yajima Kazuhito Yamasaki

    Journal of Physics A: Mathematical and Theoretical   45 ( 6 )   065201   2012

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Finsler metric and elastic constants for weak anisotropic media Reviewed

    Takahiro Yajima Kazuhito Yamasaki Hiroyuki Nagahama

    Nonlinear Analysis: Real World Applications   12 ( 6 )   3177 - 3184   2011

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Differential geometric structures of stream functions: incompressible two-dimensional flow and curvatures Reviewed

    Kazuhito Yamasaki Takahiro Yajima Takahiro Iwayama

    Journal of Physics A: Mathematical and Theoretical   44 ( 15 )   155501   2011

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Differential geometry of viscoelastic models with fractional-order derivatives Reviewed

    Takahiro Yajima Hiroyuki Nagahama

    Journal of Physics A: Mathematical and Theoretical   43 ( 38 )   385207   2010

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Tangent bundle viewpoint of the Lorenz system and its chaotic behavior Reviewed

    Takahiro Yajima Hiroyuki Nagahama

    Physics Letters A   374 ( 11-12 )   1315 - 1319   2010

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Extended objects as topological singularities in non-Riemannian space

    Takahiro Yajima Hiroyuki Nagahama Miki Wadati

    Proceedings of the 44-th Symposium on Finsler Geometry   78 - 81   2009

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    Language:English   Publishing type:Research paper (bulletin of university, research institution)  

  • Finsler geometry of seismic ray path in anisotropic media Reviewed

    Takahiro Yajima Hiroyuki Nagahama

    Proceedings of the Royal Society A   465 ( 2106 )   1763 - 1777   2009

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Geometrical unified theory of Rikitake system and KCC-theory Reviewed

    Takahiro Yajima Hiroyuki Nagahama

    Nonlinear Analysis: Theory, Methods and Applications   71 ( 12 )   e203 - e210   2009

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Nonlinear dynamical systems and KCC-theory Reviewed

    Takahiro Yajima Hiroyuki Nagahama

    Acta Mathematica Academiae Paedagogicae Ny?regyh?ziensis   24 ( 1 )   179 - 189   2008

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Geometrical invariants of Rikitake system in KCC-theory Reviewed

    Takahiro Yajima Hiroyuki Nagahama

    Tensor (New Series)   69   106 - 113   2008

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    Language:English   Publishing type:Research paper (scientific journal)  

  • A geometrical approach to soliton systems in Kawaguchi space

    Takahiro Yajima Hiroyuki Nagahama

    Proceedings of the 42-th Symposium on Finsler Geometry   42 - 45   2007

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    Language:English   Publishing type:Research paper (bulletin of university, research institution)  

  • Kawaguchi space, Zermelo’s condition and seismic ray path Reviewed

    Takahiro Yajima Hiroyuki Nagahama

    Nonlinear Analysis: Real World Applications   8 ( 1 )   130 - 135   2007

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Physical fields, soliton systems and Kawaguchi space Reviewed

    Takahiro Yajima Hiroyuki Nagahama

    Analele ?tiintifice ale Universit??ii "Al.I.Cuza" din Ia?i, Matematica   53   343 - 355   2007

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    Language:English   Publishing type:Research paper (scientific journal)  

  • KCC-theory and geometry of the Rikitake system Reviewed

    Takahiro Yajima Hiroyuki Nagahama

    Journal of Physics A: Mathematical and Theoretical   40 ( 11 )   2755 - 2772   2007

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Higher-order geometry of solitary waves in solid earth

    Takahiro Yajima Hiroyuki Nagahama

    Proceedings of EASTEC Symposium 2007   135 - 136   2007

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    Language:English   Publishing type:Research paper (international conference proceedings)  

  • Differential geometry of nonlinear dynamical system: Rikitake dynamo system and Lorentz model

    Takahiro Yajima Hiroyuki Nagahama

    Geophysical Research Abstract   8   06524   2006

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    Language:English   Publishing type:Research paper (international conference proceedings)  

  • Seismic ray theory for structural medium based on Kawaguchi and Finsler geometry Reviewed

    Takahiro Yajima Hiroyuki Nagahama

    Earthquake Source Asymmetry, Structural Media and Rotation Effects   2006

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    Language:English   Publishing type:Research paper (other academic)  

  • Seismic ray paths in anisotropic medium based on higher-order geometry

    Takahiro Yajima Hiroyuki Nagahama

    EOS Transactions AGU, Fall Meeting Supplement Abstract   87   S43B-1391   2006

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    Language:English   Publishing type:Research paper (international conference proceedings)  

  • Seismic ray path in an anisotropic medium from a view point of Finsler geometry

    Takahiro Yajima Hiroyuki Nagahama

    Proceedings of the 41-th Symposium on Finsler Geometry   41 - 47   2006

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Class

  • 機械数理Ⅲ  T730039

    2022  ( University )

  • 機械数理Ⅰ  T730004

    2022  ( University )

  • 幾何数理機械工学  B100342

    2022  ( Graduate School )

  • 数理機械工学特論  C100062

    2022  ( Graduate School )

  • 機械数理Ⅰ  T000082

    2022  ( University )

  • 応用幾何工学  T730044

    2022  ( University )

  • 機械数理Ⅰ演習  T730024

    2022  ( University )

  • 機械数理Ⅲ  T730039

    2021  ( University )

  • 機械数理Ⅰ  T000082

    2021  ( University )

  • 応用幾何工学  T730044

    2021  ( University )

  • 機械数理Ⅰ演習  T730024

    2021  ( University )

  • 機械数理Ⅰ  T730004

    2021  ( University )

  • 幾何数理機械工学  B100342

    2021  ( Graduate School )

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