Colloquium

Seminar information archive ~04/21Next seminarFuture seminars 04/22~

Organizer(s) ASUKE Taro, TERADA Itaru, HASEGAWA Ryu, MIYAMOTO Yasuhito (chair)
URL https://www.ms.u-tokyo.ac.jp/seminar/colloquium/index_e.html

2024/03/14

14:30-17:00   Room #大講義室(auditorium) (Graduate School of Math. Sci. Bldg.)
If you do not belong to Graduate School of Mathematical Sciences, the University of Tokyo, please apply from the form at [Reference URL].
Toshiyasu Arai (Graduate School of Mathematical Sciences, The University of Tokyo) 14:30-15:30
Many years from now (JAPANESE)
[ Abstract ]
I have been studying proof theory since the 1980's. In this talk I will talk about what happened to me in these 40 years, and let me report the latest result on ordinal analysis.
[ Reference URL ]
https://forms.gle/m38f1KRi67ECuA7MA
Masahiro Yamamoto (Graduate School of Mathematical Sciences, The University of Tokyo) 16:00-17:00
Mathematics, which I eventually found that I like: from the viewpoint of some marginal areas (JAPANESE)
[ Abstract ]
Looking back on my experiences over 40 years, I have been convinced that I have been loving my own mathematics among others.

After all, I can sum up as that all my mathematics are concerned with the three topics: control theories, inverse problems and time-fractional partial differential equations. Some of these research fields has already developed to major topics, while others keep still minor interests.

When I started studies on inverse problems in 1980's, there were very few population of mathematicians as specialists in Japan. In particular, inverse problems did not call great attention of mathematicians and were understood as marginal mathematical topics in spite of practical significance and demands On the other hand, possibly available methodologies and ideas have been exploited and integrated gradually. As consequence, main research partners have been outside Japan.
I have been enjoying not only the research contents, but also such wider collaboration.

Aiming at non-meaningless reference for the youngers, and trying not to be too retrospective, I will describe how I have done in mathematics as well as my research contents.
[ Reference URL ]
https://forms.gle/m38f1KRi67ECuA7MA