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Nishiyama Takahiro  西山 高弘

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NISHIYAMA Takahiro  西山 高弘

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Researcher Number 60333241
Other IDs
Affiliation (Current) 2025: 山口大学, 大学院創成科学研究科, 教授
Affiliation (based on the past Project Information) *help 2025: 山口大学, 大学院創成科学研究科, 教授
2021 – 2023: 山口大学, 大学院創成科学研究科, 教授
2018 – 2020: 山口大学, 大学院創成科学研究科, 准教授
2007 – 2010: Yamaguchi University, Graduate School of Science and Engineering, Associate Professor
2006: Yamaguchi University, Graduate School of Science and Engineering, Associate Professor, 大学院理工学研究科, 助教授 … More
2006: 山口大学, 理工学研究科, 助教授
2004 – 2006: 山口大学, 工学部, 助教授
2002 – 2003: Fukuoka Institute of Technology, Faculty of Information Engineering, Assistant Professor, 工学部, 助教授
2001 – 2002: 福岡工業大学, 工学部, 講師 Less
Review Section/Research Field
Principal Investigator
Basic Section 12040:Applied mathematics and statistics-related / General mathematics (including Probability theory/Statistical mathematics) / Global analysis / Global analysis
Except Principal Investigator
Geometry / Basic analysis / Algebra / Global analysis / Geometry
Keywords
Principal Investigator
ベルトラミ流 / オイラー方程式 / 不変トーラス / 力学系 / 渦 / 流体 / ヘルムホルツ場 / 絡み目 / 結び目 / 結晶学的対称性 … More / 結晶群 / 液晶 / 磁気群 / ブルー相 / キラル液晶 / 流体力学 / 特殊関数 / 円管ポアズイユ流 / 合流型超幾何関数 / クーロン波動関数 … More
Except Principal Investigator
skew information / Liouville surface / Liouville manifold / Liouville metric / semi-symmetric space / Lorentz manifold / Heisenberg inequality / uncertainty relation / Cramer-Rao inequality / operator inequality / Tsallis entropy / quantum computation / operator / operator entropy / エントロピー / Heisenberg不等式 / 不確定性関係 / Cramer-Rao不等式 / 作用素不等式 / Tsallisエントロピー / 量子計算 / 作用素 / simple group / Burnside ring / subgroup lattice / prime graph / finite group / 単純群 / バーンサイド環 / 部分群束 / 素数グラフ / 有限群 / Peakon solution / Inverse scattering method / Benjamin-Ono equation / Degasperis-Procesi equation / Camassa-Holm equation / Zero dispersion limit / Nonlinear wave equation / Soliton / Peakon解 / 逆散乱法 / Benjamin-Ono方程式 / Degasperis-Procesi方程式 / Camassa-Holm方程式 / 零分散極限 / 非線形波動方程式 / ソリトン / generalized Liouville manifold / Lorentzian metric / リッチ曲率 / 大域的構造 / 共形平坦 / ローレンツ曲面 / 局所共形平坦 / ローレンツ型擬対称空間 / generalized-Liouville構造 / Liouville構造 / Lorentz-Liouville構造 / generalized Liouville / Lorentz metric / Galerkin approximation / Euler eq / Hahn-Banach type theorems / extension of functions / locally pseudoconvex spaces / comparison theorems / sectional curvature / riemannian manifolds / トポノゴフの三角形比較定理 / 局所凸空間 / 正則関数の延長 / 局所擬凸複素空間 / 最短閉側地線 / ガレルキン近似 / Euler方程式 / Hahn-Banach型定理 / 関数の延長 / 局所擬凸空間 / 比較定理 / 断面曲率 / リーマン多様体 / トポロジー / 結び目理論 / 位相幾何 Less
  • Research Projects

    (12 results)
  • Research Products

    (28 results)
  • Co-Researchers

    (19 People)
  •  流体中で結び目や絡み目をなす渦管の化学物質との構造類似性に着目した研究Principal Investigator

    • Principal Investigator
      西山 高弘
    • Project Period (FY)
      2025 – 2027
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 12040:Applied mathematics and statistics-related
    • Research Institution
      Yamaguchi University
  •  結晶学的対称性をもったソレノイダルなベクトル場の不変トーラスの研究Principal Investigator

    • Principal Investigator
      西山 高弘
    • Project Period (FY)
      2022 – 2024
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 12040:Applied mathematics and statistics-related
    • Research Institution
      Yamaguchi University
  •  Research on structure of chiral liquid crystals by dynamical system methodPrincipal Investigator

    • Principal Investigator
      Nishiyama Takahiro
    • Project Period (FY)
      2018 – 2022
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 12040:Applied mathematics and statistics-related
    • Research Institution
      Yamaguchi University
  •  A study on invariants for knots derived from the magnetic graph

    • Principal Investigator
      MIYAZAWA Yasuyuki
    • Project Period (FY)
      2008 – 2010
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Yamaguchi University
  •  Applications of Coulomb wave functions to fluid mechanics.Principal Investigator

    • Principal Investigator
      NISHIYAMA Takahiro
    • Project Period (FY)
      2007 – 2009
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      General mathematics (including Probability theory/Statistical mathematics)
    • Research Institution
      Yamaguchi University
  •  Study of Inequalities in Operator Theory and Quantum Information Theory

    • Principal Investigator
      KURIYAMA Ken
    • Project Period (FY)
      2006 – 2007
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Yamaguchi University
  •  Generalized Burnside rings and generalized prime graphs of finite groups

    • Principal Investigator
      IIYORI Nobuo
    • Project Period (FY)
      2005 – 2006
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Algebra
    • Research Institution
      Yamaguchi University
  •  Research on global structures of Lorentzian semi-symmetric spaces

    • Principal Investigator
      GOTO Midori
    • Project Period (FY)
      2004 – 2006
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Fukuoka Institute of Technology
  •  Study on the asymptotic behavior of solutions for the nonlocal soliton equations in the zero dispersion limit

    • Principal Investigator
      MATSUNO Yoshimasa
    • Project Period (FY)
      2004 – 2005
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Global analysis
    • Research Institution
      Yamaguchi University
  •  流体中の渦の運動と複雑な流れに関するオイラー方程式の研究Principal Investigator

    • Principal Investigator
      西山 高弘
    • Project Period (FY)
      2003 – 2004
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Global analysis
    • Research Institution
      Yamaguchi University
      Fukuoka Institute of Technology
  •  流体中の渦の運動に関するオイラー方程式の研究Principal Investigator

    • Principal Investigator
      西山 高弘
    • Project Period (FY)
      2001 – 2002
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Global analysis
    • Research Institution
      Fukuoka Institute of Technology
  •  Global Studies on Curvature and Geometric Structures of Riemannian Manifolds

    • Principal Investigator
      ITOKAWA Yoe
    • Project Period (FY)
      2001 – 2002
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Fukuoka Institute of Technology

All 2023 2022 2021 2019 2018 2009 2008 2007 2006 2005 Other

All Journal Article Presentation

  • [Journal Article] Knots and links of invariant tori in Beltrami flows with cubic symmetry2023

    • Author(s)
      Takahiro Nishiyama
    • Journal Title

      Physics Letters A

      Volume: 460 Pages: 128614-128614

    • DOI

      10.1016/j.physleta.2022.128614

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-22K03414
  • [Journal Article] Rod-packing arrangements of invariant tori in solenoidal vector fields with cubic symmetries2022

    • Author(s)
      Takahiro Nishiyama
    • Journal Title

      Journal of Mathematical Chemistry

      Volume: 60 Issue: 7 Pages: 1163-1199

    • DOI

      10.1007/s10910-022-01349-4

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-18K03416
  • [Journal Article] Crystallography of three-dimensional fluid flows with chirality in hexagonal cases2019

    • Author(s)
      Takahiro Nishiyama
    • Journal Title

      Acta Crystallographica Section A

      Volume: 75 Issue: 6 Pages: 798-813

    • DOI

      10.1107/s205327331901146x

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18K03416
  • [Journal Article] Distribution of complex phase velocities for small disturbances to pipe Poiseuille flow.2009

    • Author(s)
      Takahiro Nishiyama
    • Journal Title

      Journal of Fluid Mechanics 620

      Pages: 299-312

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540133
  • [Journal Article] Distribution of complex phase velocities for small disturbances to pipe Poiseuille flow2009

    • Author(s)
      Takahiro Nishiyama
    • Journal Title

      Journal of Fluid Mechanics vol.620

      Pages: 299-312

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540133
  • [Journal Article] Application of Coulomb wave functions to an orthogonal series associated with steady axisymmetric Euler flows2008

    • Author(s)
      Takahiro Nishiyama
    • Journal Title

      Journal of Approximation Theory 151

      Pages: 42-59

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540133
  • [Journal Article] Application of Coulomb wave functions to an orthogonal series associated with steady axisymmetric Euler flows2008

    • Author(s)
      Takahiro Nishiyama
    • Journal Title

      Journal of Approximation Theory vol.151

      Pages: 42-59

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540133
  • [Journal Article] Magnetohydrodynamic approaches to measure-valued solutions of the two-dimensional stationary Euler equations2007

    • Author(s)
      Takahiro Nishiyama
    • Journal Title

      Bulletin of the Institute of Mathematics, Academia Sinica, New Series 2

      Pages: 139-154

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540133
  • [Journal Article] An integral transform whose kernel is a stream function of a steady Euler flow with axisymmetry2007

    • Author(s)
      西山 高弘
    • Journal Title

      Z.Agnew Math.Phys. 58

      Pages: 68-80

    • Data Source
      KAKENHI-PROJECT-16540089
  • [Journal Article] An integral transform whose kernel is a stream function of a steady Euler flow with axisymmetry2007

    • Author(s)
      Takahito Nishiyama
    • Journal Title

      Z. Angew. Math. Phys. 58

      Pages: 68-80

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540089
  • [Journal Article] An integral transform whose kernel is a stream function of a steady Euler flow with axisymmetry2007

    • Author(s)
      Takahiro Nishiyama
    • Journal Title

      Z. Angew. Math. Phys. 58

      Pages: 68-80

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-16540089
  • [Journal Article] A relaxation method for construction a Beltrami flow in a bounded domain2006

    • Author(s)
      Takahiro Nishiyama
    • Journal Title

      J. Math. Phys. 46・8

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-16540089
  • [Journal Article] A relaxation method for construction a Beltrami flow in a bounded domain2006

    • Author(s)
      Takahiro Nishiyama
    • Journal Title

      J. Math. Phys. 46-8

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540089
  • [Journal Article] Construction of axisymmetric steady states of an inviscid incompressible fluid by apatially discretized equations for psudo-advected vorticity2005

    • Author(s)
      Takahiro Nishiyama
    • Journal Title

      Int. J. Math. and Math. Sci. 2005・20

      Pages: 3319-3346

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-16540089
  • [Journal Article] A relaxation method for constructing a Beltrami flow in a bounded domain2005

    • Author(s)
      T.Nishiyama
    • Journal Title

      Journal of Mathematical Physics 46

    • Data Source
      KAKENHI-PROJECT-16540196
  • [Journal Article] Construction of axisymmetric steady states of an inviscid incompressible fluid by apatially discretized equations for psudo-advected vorticity2005

    • Author(s)
      Takahiro Nishiyama
    • Journal Title

      Int. J. Math. and Math. Sci. 2005-20

      Pages: 3319-3346

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540089
  • [Journal Article] A relaxation method for constructing a Beltrami flow in a bounded domain2005

    • Author(s)
      西山 高弘
    • Journal Title

      J.Math.Phys. 46・8

    • Data Source
      KAKENHI-PROJECT-16540089
  • [Journal Article] A relaxation method for constructing a Beltrami flow in a bounded domain2005

    • Author(s)
      T.Nishiyama
    • Journal Title

      Journal of Mathematical Physics Vol.46

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540196
  • [Journal Article] Construction of axisymmetric steady states of an inviscid incompressible fluid by spatially disally discretized equations for pseudo-advected vorticity2005

    • Author(s)
      西山 高弘
    • Journal Title

      Int.J.Math.Sci. 2005・20

      Pages: 3319-3346

    • Data Source
      KAKENHI-PROJECT-16540089
  • [Journal Article] Magnetohydrodynamics approaches to measure-valued solutions of the two-dimensional stationary Euler equations

    • Author(s)
      Takahiro Nishiyama
    • Journal Title

      Bull. Inst. Math. Sinica (New Series) (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-16540089
  • [Journal Article] Two applications of Coulomb wave functions in hydrodynamics

    • Author(s)
      Takahiro Nishiyama
    • Journal Title

      京都大学数理解析研究所講究録「オイラー方程式の数理:力学と変分原理250年」 印刷中

    • Data Source
      KAKENHI-PROJECT-20540079
  • [Journal Article] Magnetohydrodynamics approaches to measure-valued solutions of the two-dimensional stationary Euler equations

    • Author(s)
      Takahiro Nishiyama
    • Journal Title

      Bull. Inst. Math. Sinica (New Series) (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540089
  • [Journal Article] Magnetohynamic approaches to measure-valued solutions of the two-dimensional stationary Euler equations

    • Author(s)
      西山 高弘
    • Journal Title

      Transport Theory Statist.Phys. 印刷中

    • Data Source
      KAKENHI-PROJECT-16540089
  • [Journal Article] Magnetohydrodynamic approaches to measure-valued solution of the two-dimensional stationary Euler equations

    • Author(s)
      西山 高弘
    • Journal Title

      Bull.Inst.Math.Sinica(New Ser.) 印刷中

    • Data Source
      KAKENHI-PROJECT-16540089
  • [Presentation] 立方晶の対称性をもつベクトル場におけるダブルツイスト構造.rod packing の観点から2021

    • Author(s)
      西山高弘
    • Organizer
      日本液晶学会
    • Data Source
      KAKENHI-PROJECT-18K03416
  • [Presentation] 3次元周期的な流れの結晶学2019

    • Author(s)
      西山高弘
    • Organizer
      第65回理論応用力学講演会・第22回土木学会応用力学シンポジウム
    • Data Source
      KAKENHI-PROJECT-18K03416
  • [Presentation] キラル液晶のシリンダ構造に関する常微分方程式を用いた考察-その3-六方晶の場合2019

    • Author(s)
      西山高弘
    • Organizer
      日本液晶学会 討論会
    • Data Source
      KAKENHI-PROJECT-18K03416
  • [Presentation] キラル液晶のシリンダ構造に関する常微分方程式を用いた考察 - その2 - 磁気群の応用2018

    • Author(s)
      西山高弘
    • Organizer
      日本液晶学会
    • Data Source
      KAKENHI-PROJECT-18K03416
  • 1.  MATSUNO Yoshimasa (30190490)
    # of Collaborated Projects: 3 results
    # of Collaborated Products: 0 results
  • 2.  MIYAZAWA Yasuyuki (60263761)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 3.  NISHIHARA Masaru (20112287)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 4.  GOTO Midori (60162161)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 5.  YANAGI Kenjiro (90108267)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 6.  KURIYAMA Ken (10116717)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 7.  OKADA Mari (40201389)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 8.  SATO Yoshihisa (90231349)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 9.  ANDO Yoshifumi (80001840)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 10.  KOMIYA Katsuhiro (00034744)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 11.  ITOKAWA Yoe (90223205)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 12.  SHIRAKAWA Hiroshi (60002995)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 13.  SUGAHARA Kunio (20093255)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 14.  MAKINO Tetu (00131376)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 15.  MASUMOTO Makoto (50173761)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 16.  IIYORI Nobuo (00241779)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 17.  KITAMOTO Takuya (30241780)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 18.  KUTAMI Mamoru (80034734)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 19.  YANAGIHARA Hiroshi (30200538)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results

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