Employment

• April 2025 - present　Faculty of Education, Hokkaido University of Education, Associate Professor

• April 2021 - March 2025　Faculty of Education, Hokkaido University of Education, Senior Lecturer

• April 2020 - March 2021　National Institute of Technology, Ichinoseki College, Assistant Professor

Education

• April 2017 - March 2020 (PhD)　Department of Mathematics, Hokkaido University (supervisor: Prof. Takahiro Hasebe)

• April 2015 - March 2017 (MSc)　Department of Mathematics, Kyoto University (supervisor: Prof. Benoît Collins)

• April 2011 - March 2015 (BEd)　Osaka Kyoiku University (supervisor: Prof. Hisatoshi Yuasa)

• April 2008 - March 2011　Osaka Prefectural Izumi High School

Part-time Lecturer

• September 2025 - March 2026　Asahikawa City University  (Econometrics)

• April 2024 - August 2024　Hokkaido University  (Calculus I)

• April 2023 - March 2024　Hokkai Gakuen University  (Calculus I・II)

• April 2023 - August 2023　Hokkaido University  (Calculus I)

• April 2022 - August 2022　Hokkaido University  (Calculus I)

• September 2018 - March 2020　Hokkai Gakuen University  (Calculus I・II)

• October 2017 - March 2020　Hokkaido University Learning Support Office  (Teaching Assistant)

Research interests

Main research interests encompass free probability theory and its associated fields. Specifically, I am engaged in the study of distribution classes that arise from limit theorems involving classical, free, Boolean, and monotone convolutions. These classes encompass various types of distributions, including infinitely divisible distributions, self-decomposable distributions, stable laws, and extreme value distributions. My research approach incorporates complex analysis and measure theory. Recently, I have been delving into the study of finite free probability theory, which can be described as the asymptotic theory of free probability. This pursuit aims to elucidate the convolutions of characteristic polynomials of random matrices and their connection to free probability.

Grants

• April 2022 - March 2027　JSPS Grant-in-Aid for Early-Career Scientists, 22K13925

• April 2021 - March 2023　JSPS Grant-in-Aid for Scientific Research (B), 19H01791  (PI: Kouji Yano)