Papers


Research Papers (with peer review)

  1. T. Matsumoto and T. Sakajo, Turbulence, cascade and singularity in a generalization of the Constantin-Lax-Majda equation, in preparation (2024) [arXiv:1707.05205]
  2. T. Sakajo and Changjung Zou, Regrularization for point vortices on S^2, submitted (2024).
  3. T. Sakajo, Let flows "speak" about topology: theory and applications of topological flow data analysis, submitted (2024)
  4. V. S. Krishnamurthy and T. Sakajo, Continuous family of point-vortex lattice equilibria in doubly-periodic rectangular domains, in revision (2024)
  5. K. Takeda and T. Sakajo, Uniform error bounds of the ensemble transform Kalman filter for infinite-dimensional dynamics with multiplicative covariance inflation, SIAM J. Uncertanity Quantification accepted (2024) [ arXiv:2024.03756]
  6. H. Miyazako and T. Sakajo, Defect pairs in nematic cell alignment on doubly connected domain, Proc. Roy. Soc. A vol. 480 20230879 (2024) (doi:doi.org/10.1098/rspa.2023.0879)
  7. B. Protas, S. G. Llewellyn Smith and T. Sakajo, Editorial: Applied and computational complex analysis in the study of nonlinear phenomena, Physica D vol. 460 134025 (2024) (doi:10.1016/j.physd.2023.134025)
  8. K. Takeda and T. Sakajo, Geometric ergodicity for Hamiltonian Monte Carlo on compact manifolds, SIAM Journal on Numerical Analysis vol. 61 No.6 pp. 2994--3013 (2023) (doi:10.1137/22M1543550)
  9. T. Sakajo and K. Itatani, Topological identification of vortical flow structures in the left ventricle of the heart, SIAM Journal on Imaging Science vol. 16 No.3 pp. 1491--1519 (2023) (doi:10.1137/22M1536923)
  10. Y. Tsuji and T. Sakajo, Statistical laws of a one-dimensional model of turbulent flows subject to an external random force, Nonlinearity vol. 36 No. 8 pp. 4283--4302 (2023) (doi:10.1088/1361-6544/acdfa3)
  11. T. Sakajo, Singular solutions of nonlinear hydrodynamic equations arising in turbulence theory, Sugaku Expositions vol. 36 No. 1 pp. 93--117 (2023) (doi:10.1090/suga/478)
  12. V. S. Krishnamurhty and T. Sakajo, The N-vortex problem in a doubly periodic rectangular domain with constant background vorticity, Physica D vol. 448 133728 (2023) (doi.org/10.1016/j.physd.2023.133728 (2023)
  13. T. Sakajo and T. Yokoyama, Discrete representations of orbit structures of flows for topological data analysis, Discrete Mathematics, Algorithms and Applications 2250143 (2022) (doi:10.1142/S1793830922501439) [arXiv:2010.13434]
  14. T. Sakajo, S. Ohishi and T. Uda, Identification of Kuroshio meanderings south of Japan via a topological data analysis for sea surface height, Journal of Oceanography vol. 78(6) pp. 495--513 (2022) (doi:10.1007/s10872-022-00656-3)
  15. T. Sakajo and Vikas S. Krishnamurthy, Quantized point vortex equilibria in a background Liouville-type vorticity field on a curved torus, J. Math. Phys. vol. 63 063101 (2022)
  16. N. Tanabe, S. Kaji, S. Sato, T. Yokoyama, T. Oguma, K. Tanizawa, T. Handa, T. Sakajo, T. Hirai, A homological approach to a mathematical definition of local radiological abnormalities in lung diseases, J. Appl. Phisiol. vol. 131 (2) pp. 60--612 (2021) (doi:10.1152/japplphysiol.00150.2021)
  17. T. Uda, T. Sakajo, M. Inatsu and K. Koga, Identification of Kuroshio meanderings south of Japan via a topological data analysis for sea surface height, J. Meteo. Soc. Japan vol. 99 No.5 pp. 1169--1183 (2021) (doi:10.2151/jmsj.2021-057)
  18. B. Protas, S. Llywellyn Smith and T. Sakajo, Finite rotating and translating vortex sheets, J. Fluid Mech. vol. 923 A23 (2021) [arXiv:2101.09570]
  19. T. Sakajo and P. Wang, Spot dynamics of a reaction-diffusion system on the surface of a torus, SIAM J Appl. Dyn. Sys. (SIADS), vol. 20 No. 2 pp. 1053--1089 (2021) (doi:10.1137/20M1380636)
  20. B. Protas and T. Sakajo, Rotating equilibria of vortex sheets, Physica D, vol. 403 (2020) [arXiv:1906:03803]
  21. T. Sakajo, Vortex crystals on the surface of a torus, Phil. Trans. Roy. Soc. A, vol. 2158 (2019) (doi: 10.1098/rsta.2018.0344)
  22. T. Uda, T. Yokoyama and T. Sakajo, Algorithms converting streamline topologies for 2D Hamiltonian vector fields using Reeb graphs and persistent homology, 日本応用数理学会論文誌, vol. 29 No. 1 pp. 187--224 (2019) (in Japanese).
  23. 坂上 貴之, 乱流の数理をめぐる流体方程式の特異解,数学 71-2, pp. 178--200 (2019) (in Japanese)
  24. T. Sakajo, Exact solution to a modified Liouville equation with Stuart vortex distribution on the surface of a torus, Proc. Roy. Soc. A vol. 475 (2019) (doi: 10.1098/rspa.2018.0666) (Open Access)
    Correction to ‘Exact solution to a Liouville equation with Stuart vortex distribution on the surface of a torus vol. 477 (2001) (doi: 10.1098/rspa.2021.0485)
  25. B. Protas and T. Sakajo, Harnessing the Kelvin-Helmholtz instability: feedback stabilization of an inviscid vortex sheet, Journal of Fluid Mechanics, vol. 852 pp. 156--177 (2018) [arXiv:1711:03249]
  26. T. Gotoda and T. Sakajo, Universality of the anomalous enstrophy dissipation at the collapse of three point vortices on Euler-Poincare models, SIAM J. Appl. Math., vol. 78 No. 4 pp. 2105--2128 (2018) [arXiv:1705.00146]
  27. T. Sakajo and T. Yokoyama, Tree representation of topological streamline patterns of structurally stable 2D Hamiltonian vector fields in multiply connected domains, The IMA Journal of Applied Mathematics, vol. 83 pp. 380--411 (2018) (doi: 10.1093/imamat/hxy005)
  28. S.-I. Sohn, T. Sakajo and S.-C. Kim, Stability of batotropic vortex strip on a rotating sphere, Proc. Roy. Soc. A, vol. 474 (2018) (doi:10:1098.rspa.2017.0883) (Open Access)
  29. T. Sakajo and Y. Shimizu, Toroidal geometry stabilizing a latitudinal ring of N point vortices on a torus, J. Nonlinear Science, vol. 28 pp. 1043--1077 (2018) (doi: 10.1007/s00332-017-9440-z)
  30. R. Nelson, B. Protas and T. Sakajo, Linear feedback stabilization of point vortex equilibria near a Kasper Wing, J. Fluid Mech., vol. 827 pp. 121--154 (2017) (doi:10.1017/jfm2017.484) [arXiv:1703.07720]
  31. T. Sakajo and Y. Shimizu, Point vortex interactions on a toroidal surface, Proc. Roy. Soc. A, vol. 472 20160271 (2016) (doi:10.1098/rspa.2016.0271)
  32. T. Gotoda and T. Sakajo, Distributional enstrophy dissipation via the triple vortex collapse, J. Nonlinear Science, vol. 26 No.5 pp. 1525--1570 (2016) (doi:10.1007/s00332-016-9312-y)
  33. T. Matsumoto and T. Sakajo, One-dimensional hydrodynamic model generating turbulent cascade, Phys. Rev. E, vol. 93 No. 5 053101 (2016) (doi: 10.1103/PhysRevE.93.053101) [arXiv:1601.06490]
  34. T. Gotoda and T. Sakajo, Enstrophy variations in the incompressible 2D Euler flows and alpha point vortices, Mathematical Fluid Dynamics, Present and Future, Springer Proceedings in Mathematics and Statistics, 183 pp. 401--432 (2016) (doi: 10.1007/978-4-431-56457-7_14)
  35. T. Sakajo and T. Yokoyama, Transitions between streamline topologies of structurally stable Hamiltonian flows in multiply connected domains, Physica D, vol. 307 (2015) pp. 22--41 (doi:10.1016/j.physd.2015.05.013)
  36. M. S. Nasser, T. Sakajo, A. H. Murid and L. K. Wei, A fast computational method for potential flows in multiply connected coastal domains, Japan J. Indust. Appl. Math., vol.32 No.1 (2015) pp. 205--236 (doi: 10.1007/s13160-015-0168-6)
  37. R. Nelson and T. Sakajo, Trapped vortices in multiply connected domains, Fluid Dynamics Research, vol. 46 No. 6 (2014) 061402
  38. T. Sakajo, Y. Sawamura and T. Yokoyama, Unique encoding for streamline topologies of incompressible and inviscid flows in multiply connected domains, Fluid Dynamics Research, vol. 46 No. 3 (2014) 031411
  39. H. Okamoto, T. Sakajo and M. Wunsch, Steady-states and traveling-wave solutions of the generalized Constantin-Lax-Majda equation, Discrete and Continuous Dynamical Systems Series A, vol. 34 No. 8 (2014) pp. 3155--3170.
  40. N. Aoyama, T. Sakajo and H. Tanaka, A computational theory for spiral point vortices in multiply connected domains with slit boundaries, Japan J. Indust. Appl. Math., vol. 30 No. 3 (2013) pp. 485--509. (doi: 10.1007/s13160-013-0113-5)
  41. T. Yokoyama and T. Sakajo, Word representation of streamline topologies for structurally stable vortex flows in multiply connected domains, Proc. Roy. Soc. A, vol. 469 (2013) (doi:10.1098/rspa.2012.0558)
  42. T. Sakajo, Instantaneous energy and enstrophy variations in Euler-alpha point vortices via triple collapse, J. Fluid Mech., vol. 702 (2012) pp. 188-214. (doi:10.1017/jfm.2012.172)
  43. T. Sakajo, Force-enhancing vortex equilibria for two parallel plates in uniform flow, Proc. Roy. Soc. A, vol. 468 (2012) pp. 1175--1195. (doi:10.1098/rspa.2011.0617)
  44. T. Sakajo, Fixed equilibria of point vortices in symmetric multiply connected domains, Physica D, vol. 241 (2012) pp. 583--599. (doi:10.1016/j.physd.2011.11.021)
  45. T. Sakajo and Y. Amaya, Numerical construction of potential flows in multiply connected channel domains, Computational Methods and Function Theory, vol. 11 No. 2 (2011) pp. 415--438.
  46. P. K. Newton and T. Sakajo, Point vortex equilibria and optimal packings of circles on a sphere, Proc. Roy. Soc. A, vol. 467 (2011) pp. 1468--1490. (doi:10.1098/rspa.2010.0368)
  47. K. Ohkitani and T. Sakajo, Oscillatory damping in long-time evolution of the surface quasi-geostrophic equations with generalised viscosity: a numerical study, Nonlineartiy, vol. 23 (2010) pp. 3029--3051.
    Corrigendum: Oscillatory damping in long-time evolution of the surface quasi-geostrophic equations with generalized viscosity: a numerical study Nonlinearity, vol. 25 (2012) pp. 2181--2202 (doi:10.1088/0951-7715/25/7/2181)
  48. T. Sakajo, Equation of motion for point vortices in multiply connected circular domains Proc. Roy. Soc. A, vol. 465 (2009) pp. 2589--2611. (doi:10.1098/rspa.2009.0070)
  49. T. Sakajo, From generation to chaotic motion of a ring configuration of vortex structures on a sphere, Theoretical and Computational Fluid Dynamics (2009) (doi: 10.1007/s00162-009-0116-7)
  50. T. Sakajo, An extension of Draghicescu's fast tree-code algorithm to the vortex method on a sphere, Journal of Computational and Applied Mathematics, vol. 225 (2009) pp. 158--171. (doi: 10.1016/j.cam.2008.07.021)
  51. P. K. Newton and T. Sakajo, Point vortex equilibria on the sphere via Brownian ratchets, Proc. Roy. Soc. A, vol. 465 (2009) pp. 437--455. (doi:10.1098/rspa.2008.0203)
  52. H. Okamoto, T. Sakajo and M. Wunsch, On a generalization of the Constantin-Lax-Majda equation, Nonlinearity, vol. 21 (2008) pp. 2447-2461.
  53. T. Sakajo, Non self-similar, partial and robust collapse of four point vortices on a sphere, Physical Review E, vol. 78 No. 1 (2008) (doi: 10.1103/PhysRevE.78.016312)
  54. T. Sakajo and K. Yagasaki, Chaotic motion of the N-vortex problem on a sphere: II. Saddle-centers in three-degree-of-freedom Hamiltonians, Physica D, vol. 237 (2008) pp. 2078--2083. (doi:10.1016/j.physd.2008.02.001)
  55. T. Sakajo and K. Yagasaki, Chaotic motion of the N-vortex problem on a sphere: I. Saddle-centers in two-degree-of-freedom Hamiltonians, J. Nonlinear Science , vol. 18 (5) (2008) pp. 485--525. (doi: 10.1007/s00332-008-9019-9)
  56. P. K. Newton and T. Sakajo, The N-vortex problem on a rotating sphere: III. Ring configurations coupled to a background field, Proc. Roy. Soc. A, vol. 463 (2007) pp. 961--977.
  57. T. Sakajo, Integrable four-vortex motion on sphere with zero moment of vorticity, Physics of Fluids, vol. 19 No. 1 (2007) 017109.
  58. T. Sakajo, Erratum: Invariant dynamical systems embedded in the N-vortex problem on a sphere with pole vortices, Physica D, vol. 225 (2007) pp. 235--236.
  59. H. Sato and T. Sakajo, Numerical study of De Gregorio's model for the 3-D vorticity equation, Transactions of the Japan Society for Industrial and Applied Mathematics, vol. 16, (2006) pp. 221-235. (Written in Japanese. )
  60. T. Sakajo, Invariant dynamical systems embedded in the N-vortex problem on a sphere with pole vortices, Physica D, vol. 217 (2006) pp. 142--152.
  61. T. Sakajo, High-dimensional heteroclinic and homoclinic connections in odd point-vortex ring on a sphere, Nonlinearity, vol. 19 (2005) pp. 75--93.
  62. T. Sakajo, Motion of unstable polygonal ring of vortex points on sphere with pole vortices, Proc. IUTAM Kyoto 2004, (2005) pp. 295--302.
  63. E. Kin and T. Sakajo, Efficient topological chaos embedded in the blinking vortex system, Chaos, vol. 15, (2005) 023111.
  64. T. Sakajo, Transition of global dynamics of a polygonal vortex ring on a sphere with pole vortices, Physica D, vol. 196, (2004) pp. 243--264.
  65. T. Sakajo, Analytic continuation of the Birkhoff-Rott equation in complex-time domain, European J. Appl. Math., vol. 15 (2004) pp.39--53.
  66. T. Sakajo, Motion of a vortex sheet on a sphere with pole vortices, Physics of Fluids, vol. 16 (2004) pp. 717-727.
  67. T. Sakajo, On global solutions of Constantin-Lax-Majda equation with a generalized viscosity term, Nonlinearity, vol. 16, (2003) pp. 1319--1328.
  68. T. Sakajo, Blow-up solutions of Constantin-Lax-Majda equation with a generalized viscosity term, J. Math. Sci. Univ. Tokyo, vol. 10, (2003) pp. 187--207.
  69. T. Sakajo, Formation of curvature singularity along vortex line in an axi-symmetric, swirling flow, Physics of Fluids, vol. 14 No.8, (2002) pp. 2886--2897.
  70. T. Sakajo, Numerical computation of a three-dimensional vortex sheet with swirl flow, Fluid Dynamics Research, vol.28 No.6, (2001) pp. 423--448.
  71. T. Sakajo, Efficient and fast numerical methods to compute fluid flows in the geostrophical beta plane , Proc. 12th Int'l Conference on Domain Decomposition Methods, (2001) pp.200--205.
  72. T. Sakajo, The motion of three point vortices on a sphere, Japan Journal of Industrial and Applied Mathematics - Area(1), vol. 16 No.3, (1999) pp.321--347.
  73. T. Sakajo and H. Okamoto, The application of PVM to the computation of vortex sheet motion, Gakuto International Series, vol. 11.
  74. T. Sakajo and H.Okamoto, An application of Draghicescu's fast summation method to vortex sheet motion, J. Soc. Phys. Japan, vol. 67 No.2, (1998) pp 462--470.
  75. T. Sakajo, The interactions of two vortex sheets, Adv. Math. Sci. Appl., vol. 8 No.2, (1998) pp.631--662.
  76. T. Sakajo and H. Okamoto, Numerical computation of vortex sheet roll-up in the back ground shear flow, Fluid Dynamics Research vol. 17 (1995), pp 101--119.

RIMS Proceedings

  1. Takashi Sakajo, Vortex dynamics on the surface of a torus: a review,
    京都大学数理解析研究所講究録,流体と気体の数学解析,2155 (2020), pp. 134--153.
  2. 坂上 貴之,横山 知郎,澤村 陽一,二次元多重連結領域内における構造安定な非圧縮流れの文字列表現アルゴリズム,
    京都大学数理解析研究所講究録,生物流体力学における流れ構造の解析と役割, 1900 (2014), pp.11--25.
  3. 坂上 貴之, 多重連結領域の点渦力学,
    京都大学数理解析研究所講究録,オイラー方程式の数理:カルマン渦列と非定 常渦運動100年, 1776 (2012), pp.12--27.
  4. 坂上 貴之, 球面点渦相互作用の高速tree-codeアルゴリズム,
    京都大学数理解析研究所講究録 オイラー方程式の数理:渦運動150年 vol. 1642 (2009), pp. 184-196.
  5. 坂上 貴之, Structure of invariant dynamical systems embedded in the N-vortex motion on sphere with pole vortices
    京都大学数理解析研究所講究録 流体と気体の数学解析 vol. 1536 (2007), pp. 109-121.
  6. 坂上 貴之, 球面上にあるN点渦糸環の縮約系について
    京都大学数理解析研究所講究録 力学系の研究 ─ トポロジーと計算機による新展開 vol. 1485 (2006), pp. 86-98.
  7. 森 義仁, 坂上 貴之, 金 英子 流体運動中の化学反応の数理の構築に向けてII〜実験の側面〜
    京都大学数理解析研究所講究録 非線型現象の実験解析と数理解析 vol. 1453 (2005), pp. 59-64.
  8. 金 英子, 坂上 貴之, 森 義仁 流体運動中の化学反応の数理の構築に向けてI〜位相カオスによる効率的粒子混合〜
    京都大学数理解析研究所講究録 非線型現象の実験解析と数理解析 vol. 1453 (2005), pp. 44-58.
  9. T. Sakajo, Analytic properties of Constantin-Lax-Majda equation with a generalized viscosity term
    京都大学数理解析研究所講究録 Rich Pelz's Contribution to Fluid Dynamics vol. 1326 (2003), pp.32-43.
  10. 坂上 貴之, 3次元Navier Stokes方程式に対するある一次元モデル方程式の解の爆発について
    京都大学数理解析研究所講究録 非線形現象の解析:実験と数理解析 vol. 1313 (2003), pp. 1-14.
  11. 坂上 貴之, 軸対称渦層に現れる特異点について
    京都大学数理解析研究所講究録 微分方程式の離散化手法と数値計算アルゴリズム vol. 1265 (2002) pp. 51-61.
  12. 坂上 貴之, 渦運動に対する高速数値計算法
    京都大学数理解析研究所講究録 数値計算における前処理の研究 vol. 1084 (1999) pp.154-176.
  13. T. Sakajo and H.Okamoto, The application of PVM to the computation of vortex sheet motion.
    京都大学数理解析研究所講究録 Domain Decomposition Methods and Related Topics. vol. 989 (1997) pp.158-168.
  14. T. Sakajo and H. Okamoto, An application of Draghicescu's fast summation method to vortex sheet.
    京都大学数理解析研究所講究録 計算流体力学に関わる数理的諸問題 vol. 974 (1996) pp.1-20.
  15. T. Sakajo, Vortex blob method and its application to vortex sheet motion.
    京都大学数理解析研究所講究録 数理流体力学の展望 vol. 922 (1995) pp.99-123.

Conference Proceedings (no peer review)

  1. T. Sakajo, Anomalous enstrophy dissipation via the self-similar triple collapse of the Euler-alpha point vortices , Proc. Sino-Japan conference (2012)
  2. Y. Amaya and T. Sakajo, Charge simulation method for approximating the complex potential in a channel domain with multiple cylindrical islands ,
    Proc. JST Presto symposium on mathematical sciences towards environmental problems, to appear.
  3. T. Sakajo, Equation of vortex sheet on sphere with a rotating effect and its long time evolution ,
    Proc. 7th China Japan Seminar on Numerical Mathematics eds. Z.-C. Shi and H. Okamoto , Science Press, Beijing (2005), pp. 254-264.
  4. 坂上 貴之, 極渦のある球面での渦層の運動 ,
    Miyazaki University of Technological Report Series In Applied Mathematical Sciences vol 3 , (2004) pp. 69-80.
  5. T. Sakajo, Numerical computation of a three-dimensional vortex sheet with swirl flow ,
    Proceedings of the first international conference on vortex method Kobe, (1999) pp. 39-47.
  6. 坂上 貴之, 3次元Swirl流中の渦層の運動
    第5回阿波ワークショップ 98 講演論文集, (1998) pp.95-107.
  7. 坂上 貴之, 球面上の3点渦糸系の運動
    第4回阿波ワークショップ 97 講演論文集, (1997) pp.45-58.
  8. 坂上 貴之, 2次元渦層の数値計算について
    大阪工業大学研究集会 「自由境界問題に対する数学解析・数値解析」報告集 (1997) pp.29-42.

Reports, Surveys, Books, etc

  1. 坂上貴之,数理科学2024年8月号「乱流現象を捉える不動点たち」([特集] 不動点の世界) pp. 7--14 (2024)
  2. 坂上貴之・橋本幸士,数学セミナー2024年8月号「数学者・物理学者からみた生成AI」([特集] 生成AIとこれからの数学)pp. 6--15 (2024)
  3. 坂上貴之.数学セミナー2024年4月号「数学と情報のインタラクションで創る未来の社会」([連載] 数理 meets 情報科学) pp.74--78 (2024)
  4. 坂上貴之.数理科学2023年6月号「トポロジカルフローデータ解析」([特集] トポロジカルデータ解析の拡がりーデータのかたちを捉えるー) pp.65--72 (2023)
  5. 坂上貴之,ながれ「フーリエ級数で捉える流体現象の特異性」([特集] ながれの数理:大学数学で垣間見る数理流体力学の魅力と最前線)vol. 41 No.5 pp.312--317 (2022)
  6. 横山知郎,坂上貴之,数本優,応用数理 「トポロジカルフローデータ解析(TFDA)の社会的課題への適用」(インダストリアルマテリアルズ) vol. 32 No.1 pp. 27--31 (2022)
  7. 坂上 貴之,化学工業2020年7月号 「先端計測データのトポロジカルフローデータ解析」(特集:先端計測技術開発の展望)vol. 71 No.7 pp. 407--413 (2020)
  8. 坂上 貴之,油空圧技術2020年4月号 流れの「かたち」解析による装置開発 vol. 59 No.4 pp.41--45 (2020)
  9. 坂上 貴之,数学セミナー2019年5月号「微分方程式論」の道しるべ(特集=大学数学のキーポイント(後編))pp.24--29 (2019)
  10. T. Sakajo, Research Features "Encoding 'DNA' for fluid topologies" (2018)
  11. 坂上 貴之,数学セミナー2018年1月号「数理のクロスロード」 (座談会) pp.56--63 (2017)
  12. 坂上 貴之,数学セミナー2016年9月号「“名画”ナヴィエ-ストークス方程式──ある鑑賞法 」(特集=私の選ぶとっておきの数式)pp.26--27 (2016)
  13. 坂上 貴之,化学工業2016年2月号「流れのパターンを言語化し流体設計を最適化するアルゴリズム」(特集:実用情報技術の開発と応用)(2016)
  14. 松本 剛,名和 範人,坂上 貴之,「乱流場の統計力学:ひとつの試論」「特集:注目研究 in 年会 2014」日本流体力学会誌 ながれ 33号 523-530 (2014)
  15. 坂上 貴之,「渦運動の数理的諸相」(シリーズ連携する数学:数学連携研究セ ンター刊)共立出版 (2013年3月)
  16. 坂上 貴之,越境する数学「渦の数学が織りなす世界」,岩波出版 (2013年2月28日)
  17. 坂上 貴之,「渦・境界の相互作用が創出するパラダイムシフト」- 数学と諸分野との連携活動のアイデアと数学へのフィードバック- (数学と諸科学との協働の現場からの報告),数学 2013年9月(2012)
  18. 坂上 貴之,数学セミナー6月号「流体現象の理解と数学:私の見方」(数学の見方・考え方) (2012)
  19. T. Amemiya, H. Serizawa, T. Sakajo, K. Itoh, Mathematical models for dynamics and management of algal blooms in aquatic ecosystems, submitted to Aquatic Ecosystem Research Trends, NOVA Publishers (2008)
  20. 平岡 裕章, 坂上 貴之, 書評"Computational Homology, 数学 57 巻 第3号 (2005).
  21. 坂上 貴之, Computational Homology:もう一つの数値計算の姿, 応用数理 書評(日本応用数理学会) 15 号 第2巻, pp.96-97 (2005).
  22. 坂上 貴之, 渦層の時間発展と特異点〜それでも渦層は巻き上がる?〜, 物性研究 第 82 号, pp. 1-44 (2004).
  23. 坂上 貴之, 球面渦運動の数理, 2004年度日本数学会秋季分科会 応用数学分科会 予稿集 (2004).
  24. 坂上 貴之, 数学セミナー8月号 数学と出会った頃「私と数学の基本関係」(2001) pp.4.
  25. 皆本 晃弥 坂上 貴之, GIMP/GNUPLOT/Tgifで学ぶグラフィック処理-UNIXグラフィックツール入門- サイエンス社 (1999)

Patents

  1. Takashi Sakajo and Tomoo Yokoyama, FLUID TRANSITION ROUTE ACQUISITION APPARATUS, FLUID TRANSITION ROUTE ACQUISITION METHOD, AND PROGRAM, JST (US2016259864 (A1))
  2. Takashi Sakajo and Tomoo Yokoyama, REGULAR EXPRESSION CREATION METHOD AND REGULAR EXPRESSION CREATION DEVICE OF FLOW PATTERN, AND COMPUTER-EXECUTABLE PROGRAM, JST, WO2016072515 (A1)
  3. Takashi Sakajo and Tomoo Yokoyama, METHOD FOR WORD REPRESENTATION OF FLOW PATTERN, APPARATUS FOR WORD REPRESENTATION, AND PROGRAM, JST, US9442894 (B2); US2015248377 (A1)
  4. Takashi Sakajo, Tomoo Yokoyama, Yoichi Sawamura and Takashi Ishihara, FLUID TRANSITION ANALYSIS DEVICE, FLUID TRANSITION ANALYSIS METHOD, AND PROGRAM, JST, WO2015029479 (A1)

Press Release (in Japanese)

  1. 2019.9.30 流れの「かたち」解析による装置開発~流線位相データ解析による効率的粉体分級装置の開発~ JST 京大
  2. 2023.8.2 数学者は分野の壁を超えた「言葉」を創り続ける 京都大学産学連携情報プラットフォーム philo記事
  3. 2023.8.18 心臓内の「渦血流」を同定する理論を世界に先駆けて構築―心血流の渦のパターンを文字化し、早期に心不全を発見する可能性― 京大 JST
  4. 2023.9.15 「数学の力で心渦血流を言語化」(医工連携の実践者99) 医薬経済 ONLINE 9月15日号
  5. 2024.3.18 「数学の力で医学の真理に迫る」(医学界新聞 3558号) 医学書院 3月18日

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