Featured News
RIKEN Center for Interdisciplinary Theoretical and Mathematical Sciences (iTHEMS) is an international research center at RIKEN. It facilitates close collaborations among researchers from different disciplines in theoretical, mathematical and computational sciences. On April 1, 2025, iTHEMS transitioned from a program to a center. 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.
Upcoming Events
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Seminar Tomorrow
Asymptotic Waves in Stars
April 23 (Wed) at 14:00 - 15:30, 2025
Jim Fuller (Professor, Division of Physics, Mathematics, and Astronomy (TAPIR), California Institute of Technology (Caltech), USA)
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Seminar
Insights on Issues in the Cold Dark Matter Hypothesis
April 25 (Fri) at 14:00 - 15:15, 2025
Yuka Kaneda (Ph.D. Student, University of Tsukuba)
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Colloquium
The 28th MACS Colloquium
April 25 (Fri) at 14:45 - 18:30, 2025
Shizuo Kaji (Professor, Institute of Mathematics for Industry, Kyushu University / Professor, Center for Science Adventure and Collaborative Research Advancement (SACRA), Graduate School of Science, Kyoto University)
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Seminar
Supernova axion emissivity with Δ(1232) resonance in heavy baryon chiral perturbation theory
May 1 (Thu) at 16:00 - 17:30, 2025
Shu-Yu Ho (Postdoctoral Researcher, Institute of Physics, Academia Sinica, Taiwan)
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Seminar
The role of the visual information of fish schooling via selective decision-making
May 8 (Thu) at 16:00 - 17:00, 2025
Susumu Ito (Ph.D. Student, Department of Physics, Graduate School of Science, Tohoku University)
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Seminar
2d Cardy-Rabinovici model with the modified Villain lattice formulation
May 9 (Fri) at 14:00 - 15:00, 2025
Nagare Katayama (Ph.D. Student, Yukawa Institute for Theoretical Physics, Kyoto University)
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Seminar
The index of lattice Dirac operators and K-theory
May 15 (Thu) at 13:30 - 15:00, 2025
Hidenori Fukaya (Assistant Professor, Department of Physics, Osaka University)
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Seminar
Ecology and Evolution of Mammal-Microbe Interactions
May 29 (Thu) at 16:00 - 17:00, 2025
Taichi A Suzuki (Assitant Professor, Biodesign Center for Health Through Microbiomes, Arizona State University, USA)
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Seminar
From Galaxies to Cosmological Structures: The Multi-Scale Influence of Cosmic Rays
June 13 (Fri) at 14:00 - 15:15, 2025
Ellis Owen (Special Postdoctoral Researcher, Astrophysical Big Bang Laboratory, RIKEN Cluster for Pioneering Research (CPR))
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Workshop
iTHEMS-TheoryCenter(KEK) Scientific Writing and DEI Workshop
June 24 (Tue) - 25 (Wed), 2025
Ashleigh Griffin (Professor, Department of Biology, University of Oxford, UK)
Stuart West (Professor, Department of Biology, University of Oxford, UK)
Ryosuke Iritani (Senior Research Scientist, Division of Fundamental Mathematical Science, RIKEN Center for Interdisciplinary Theoretical and Mathematical Sciences (iTHEMS)) -
Workshop
Recent Developments and Challenges in Tensor Networks: Algorithms, Applications to science, and Rigorous theories
July 28 (Mon) - August 8 (Fri), 2025
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Workshop
iTHEMS-NCTS Workshop
August 18 (Mon) - 21 (Thu), 2025
Opportunities
Latest News
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2025-04-17
Paper of the WeekWeek 3, April 2025
Title: Cohomology ring of unitary $N=(2,2)$ full vertex algebra and mirror symmetry Author: Yuto Moriwaki arXiv: http://arxiv.org/abs/2504.09919v1
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2025-04-17
AwardMasazumi Honda received "Commendation for Science and Technology: the Young Scientists' Award"
Our colleague Masazumi Honda received "Commendation for Science and Technology: the Young Scientists' Award" in recognition of his outstanding research achievements in the theoretical studies of strong-coupling dynamics in quantum field theories. Congratulations to Masazumi !
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2025-04-14
Research NewsRIKEN Research: When it comes to modeling, even unmeasurable data tells us something
Mathematical models for predicting how cancer tumors in mice grow over time can give distorted results if unmeasurable data is ignored, a team that includes two RIKEN researchers has shown1. This finding has important implications when applying mathematical models to medicine. A self-confessed data geek, Catherine Beauchemin of the RIKEN Center for Interdisciplinary Theoretical and Mathematical Sciences (iTHEMS) specializes in applying the power of math to everything from viruses to supernovae. “I love trying to figure out what data are telling us,” she says. Seeking new insights into cancer mechanisms, Beauchemin’s team used mathematical models to analyze previously published data of tumor-size measurements over time for ten mice. To read more, please visit the related link.
Upcoming Visitors
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Visiting
Stuart West
Professor, Department of Biology, University of Oxford, UKTerm: April 10 (Thu) - July 7 (Mon), 2025Visiting Place: RIKEN Wako Campus -
Visiting
Ashleigh Griffin
Professor, Department of Biology, University of Oxford, UKTerm: April 10 (Thu) - July 7 (Mon), 2025Visiting Place: RIKEN Wako Campus