Japanese version (with more info) -->
## Toshio Oshima

**Center for Mathematical and Data Scienee, Josai University**

2-3-20, Chiyodaku, Tokyo 102-0093, Japan

**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 -- Center for Mathematical and Data Science, Josai Univ. (Director.)

Seminars

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 in Japanese)
- 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)

Last modified April, 2021

Toshio OSHIMA