RIKEN Interdisciplinary Theoretical and Mathematical Sciences Program

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Interdisciplinary Theoretical and Mathematical Sciences Program (iTHEMS) is an international research program at RIKEN. It facilitates close collaborations among researchers from different disciplines in theoretical, mathematical and computational sciences. The ultimate goal of iTHEMS is to unravel the mystery of the Universe, matter, and life, as well as to solve key problems in modern society through interdisciplinary approaches.

About iTHEMS

Upcoming Events


Math Seminar

Semiclassical methods in mathematical quantum mechanics

January 23 at 16:00 - 18:10, 2020

Dr. Shu Nakamura (Professor, Gakushuin University)

Plan of the seminar: we separate each talk into two. In the first 60 minutes the speaker gives an introductory talk for non-mathematicians. After a short break, the second 60 minutes is spent for a b...more

Venue: #435-437, Main Research Building

Event Official Language: English


Workshop on quantum information science

January 29 at 10:00 - 18:00, 2020

Venue: Suzuki Umetaro Hall

Event Official Language: Japanese


Math Seminar

Index of the Wilson-Dirac operator revisited: a discrete version of Dirac operator on a finite lattice

February 25 at 16:00 - 18:10, 2020

Dr. Mikio Furuta (Professor, The University of Tokyo)

Venue: Seminar Room #160

Event Official Language: English


The 2nd MOST-RIKEN workshop on microscopic approaches to nuclear physics and astrophysics

March 27 - 29, 2020

This workshop is hosted by: - MOST-RIKEN joint research project on ab initio theory in nuclear physics - JSPS Grant-in-Aid for Scientific Research (S) “From Quarks to Neutron Stars: Challenges in QC...more

Venue: Brain Science Ikenohata Research Bldg. (3rd floor, C56)

Event Official Language: English

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Latest News


Hot Topic

Math Seminar by Prof. Syuji Yamamoto

The iTHEMS Math seminar was held on 17 December, inviting Shuji Yamamoto from Keio university. The title of the talk was “Multiple Zeta Values: Interrelation of Series and Integrals”. The topic was mu...more


Person of the Week

Self-introduction: Hajime Sotani

Understanding neutron star physics is my research topic. Neutron star is provided via supernova explosion, which happens at the last moment of life of massive star. Neutron star is a unique laboratory...more


Paper of the Week

Akizuki-Nakano vanishing theorem and its application for globally F-split 3-folds

In algebraic geometry, it is important to study spaces (=varieties) which may admit singular points. "Smoothing" is an effective way to deal with singularities. Roughly speaking, a smoothing of a (sin...more

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Upcoming Visitors

Dr. Hiroyuki Fuji

Kagawa University

Term: January 22 - 24, 2020

Visiting Place: Main Research Building

Mr. Koyanagi Yuki

Student Trainee, iTHEMS

Term: January 22 - 24, 2020

Visiting Place: Main Research Building

Dr. Chia Cheng Chang

Research Scientist, iTHEMS

Term: January 27 - February 3, 2020

Visiting Place: #233, 2F, Main Research Building

Dr. Gordon Baym

Senior Visiting Scientist, iTHEMS

Term: March 3 - 31, 2020

Visiting Place: RIKEN Wako Campus

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