Toshio Oshima

Reserch of interest（Algebraic Analysis）
    linear partial differential equations, representaion theory， harmonic analysys of (semisimple) symmetric spaces, completely integrable quontum system， computer programing
    Currently : hypergeometric systems, differential equations in a complex domain, Computer algebra with its application to research and education
Papers : main papers (incl. preprints), list

History
  Dec. 1948  Born in Gumma, Japan
  Mar. 1973  Graduated master cource of Faculty of science, University of Tokyo
  April. 1973 - 1992  University of Tokyo（1973 - Assitant prof. of Fac. Sci. - 1977 - Associate prof. of Gen. Edu. - 1981 - Associate Prof. of Fac. Sci. - 1987 - Prof. of Fac. Sci.)
  April. 1992 - 2013  Graduate school of Mathematical Scineces, Univ. of Tokyo (Prof.)
  April. 2013 --   Faculty of Science Josai Univ. (Prof.)
  April. 2021 --2025   Center for Mathematical and Data Science, Josai Univ. (Director / Depty Director(2024))

Seminars
• Lie Groups and Representation Theory
  
• Center of Integrable System at Kobe University

Programs and Utilities (* => console program in MS Windows and its source file)
• TeX device driver (MS Windows) dviout Ver.3.18.5 (package, source files)
• os_muldif.rr (a library of Computer Algebra Risa/Asir), os_muldif.zip (a package of os_muldif.rr with its manual), a part of a manual os_muldifeg.pdf in English
• okubo* (analyze spectral types of Fuchsian ordinary differential equations)
• rs* (calculate in root spaces, Weyl groups, simple Lie groups)
• disc* (calculate embedding of a Harish-Chandra module into a principal series)