Colloquium

Colloquium

iTHEMS Colloquium

Finding Gravitational Waves from the Early Universe

September 27 at 16:00 - 17:30, 2021

Dr. Eiichiro Komatsu (Director, Max Planck Institute for Astrophysics, Germany)

The Cosmic Microwave Background (CMB) gives a photographic image of the Universe when it was still an “infant”. We have been using it to test our ideas about the origin of the Universe. The CMB research told us a remarkable story: the structure we see in our Universe such as galaxies, stars, planets, and eventually ourselves originated from tiny quantum fluctuations in the period of the early Universe called cosmic inflation. While we have accumulated strong evidence for this picture, the extraordinary claim requires extraordinary evidence. The last prediction of inflation that is yet to be confirmed is the existence of primordial gravitational waves whose wavelength can be as big as billions of light years. To this end we have proposed to JAXA a new satellite mission called LiteBIRD, whose primary scientific goal is to find signatures of gravitational waves in the polarisation of the CMB. In this presentation we describe physics of gravitational waves from inflation, and the LiteBIRD proposal.

Venue: via Zoom

Event Official Language: English

Colloquium

iTHEMS Colloquium

Quantitative Population Dynamics in Interdisciplinary Biology

July 8 at 10:30 - 12:00, 2021

Prof. Shingo Iwami (Professor, Division of Biological Science, Graduate School of Science, Nagoya University)

Through the course of life, from the moment of birth till death, an organism will achieve various states of equilibrium or ‘homeostasis’ which will inevitably encounter perturbations. The processes of cell growth, differentiation, infection, mutation, evolution and adaptation work together as a coordinated ‘system’, described by mathematical models for population dynamics, to maintain a healthy state. Any disruptions to this system leads to disease including infection, allergy, cancer, and aging. We are conducting interdisciplinary research to elucidate “Quantitative Population Dynamics” through the course of life with original mathematical theory and computational simulation, which are both our CORE approach. Our mathematical model-based approach has quantitatively improved a current gold-standard approach essentially relying on the statistical analysis of “snapshot data” during dynamic interaction processes in life sciences research. In this talk, I will explain how our interdisciplinary approach extends our understanding for complicated clinical data and apply real world problem with an example of the Novel Coronavirus Disease, COVID-19.

Venue: via Zoom

Event Official Language: English

Colloquium

MACS Colloquium Co-hosted by iTHEMS SUURI-COOL (Kyoto)

The 16th MACS Colloquium

July 5 at 15:00 - 18:00, 2021

Prof. Yoshitaka Tanimura (Professor, Department of Biophysics, Kyoto University, Graduate School of Science)
Prof. Hidetoshi Nishimori (Senior Visiting Scientist, iTHEMS / Specially Appointed Professor, Tokyo Institute of Technology)

15:00- Talk by Prof. Yoshitaka Tanimura 16:15- Talk by Prof. Hidetoshi Nishimori 17:15- Discussion

Venue: via Zoom

Event Official Language: English

Colloquium

MACS Colloquium Supported by iTHEMS SUURI-COOL (Kyoto)

The 15th MACS Colloquium

April 23 at 15:00 - 17:30, 2021

Prof. Hiroshi Ishikawa (Professor, Faculty of Science and Engineering, Waseda University)

15:00- Talk by Prof. Hiroshi Ishikawa 16:05- MACS Student Conference FY2021

Venue: via Zoom

Event Official Language: Japanese

Colloquium

iTHEMS Colloquium

Mirror symmetry and KAM theory

April 16 at 13:30 - 15:00, 2021

Prof. Kenji Fukaya (Permanent Member, Simons Center for Geometry and Physics, Stony Brook University, New York, USA)

13:30pm-15:00pm (JST) Mirror symmetry is a phenomenon discovered in String theory and is much discussed recently in mathematics especially in the field of complex (algebraic) geometry and symplectic geometry. Strominger-Yau-Zaslow found that this phenomenon is closed related to a Lagrangian torus fibration. In an integrable system in Hamiltonian dynamics, the phase space is foliated by Lagrangian tori. I would like to explain a program that the Lagrangian torus fibration found by Strominger-Yau-Zaslow could be regarded as one appearing certain integrable system and KAM theory (which describes a amiltonian dynamics that is a perturbation of an integrable system) could appear in the situation of Mirror symmetry.

Venue: via Zoom

Event Official Language: English

Colloquium

MACS Colloquium Supported by iTHEMS SUURI-COOL (Kyoto)

The 14th MACS Colloquium

February 17 at 15:00 - 17:30, 2021

Prof. Yoshihiro Kaneko (Associate Professor, Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto University)

15:00- Talk by Prof. Yoshihiro Kaneko 16:05- MACS Report Meeting FY2019 16:30- Discussion of each study group

Venue: via Zoom

Event Official Language: Japanese

Colloquium

iTHEMS Colloquium

Geometry (形); Inconspicuous regulator that determines the fate of cells

December 14 at 10:00 - 11:30, 2020

Prof. Sungrim Seirin-Lee (Professor, Hiroshima University)

December 14 at 10:00-11:30, 2020 (JST) December 13 at 20:00-21:30, 2020 (EST) In the history of mathematical study in pattern formation, the effect of domain has been considered as an important factor that can regulate spatial patterning. However, it is still unknown in biology how the geometry of the domain such as nuclear or cellular shapes can directly regulate the cell fate. In this talk, I will introduce two studies of spatial reorganization in chromatin and cellular dynamics and show that the domain is likely to play a critical role in determining the cell function.

Venue: via Zoom

Event Official Language: English

Colloquium

iTHEMS Colloquium Supported by RIKEN SUURI CORPORATION

The Unreasonable Effectiveness of Quantum Theory in Mathematics

November 26 at 10:00 - 11:30, 2020

Prof. Robbert Dijkgraaf (Director, Institute for Advanced Study in Princeton, USA)

November 26 at 10:00-11:30, 2020 (JST) November 25 at 20:00-21:30, 2020 (EST) The physical concepts of quantum theory, in particular of quantum gravity and string theory, have proven to be extremely powerful in addressing deep problems in pure mathematics, from knot invariants to algebraic geometry. Is there such a thing as “quantum mathematics”? Should we add Feynman diagrams, strings, branes and black holes to the language of mathematics?

Venue: via Zoom

Event Official Language: English

Colloquium

MACS Colloquium Supported by iTHEMS SUURI-COOL (Kyoto)

The 13th MACS Colloquium

November 13 at 15:00 - 18:00, 2020

Prof. Shin-ya Kawaguchi (Professor, Division of Biological Sciences, Kyoto University Graduate School of Science)
Dr. Yuji Sugita (Senior Research Scientist, iTHEMS / Chief Scientist, Theoretical Molecular Science Laboratory, RIKEN Cluster for Pioneering Research)

15:00- Talk by Prof. Shin-ya Kawaguchi 16:15- Talk by Dr. Yuji Sugita 17:15- Discussion

Venue: via Zoom

Event Official Language: Japanese

Colloquium

MACS Colloquium Supported by iTHEMS SUURI-COOL (Kyoto)

The 12th MACS Colloquium

July 17 at 15:00 - 18:30, 2020

Prof. Yasuaki Hiraoka (Professor, Kyoto University Institute for Advanced Study (KUIAS) / Team Leader, Topological Data Analysis Team, RIKEN Center for Advanced Intelligence Project (AIP))
Prof. Motomu Tanaka (Professor, Heidelberg University)

15:00- Talk by Prof. Yasuaki Hiraoka 16:15- MACS Student Conference FY2020 17:30- Talk by Prof. Motomu Tanaka

Venue: via Zoom

Event Official Language: Japanese

Colloquium

iTHEMS Colloquium

iTHEMS Intensive Course [4] : "Adaptive strategies of organisms, their mathematical bases" - Cancer as a mini-evolutionary process

June 25 at 15:00 - 16:30, 2020

Prof. Yoh Iwasa (Senior Advisor, iTHEMS / Professor, Kwansei Gakuin University)

Living systems exhibit features distinct from nonliving physical systems: their structure and behaviors appear to be chosen adaptive. They are the outcomes of evolution. Mathematical formalisms developed in engineering and social sciences (e.g. control theory, game theory, evolutionary game theory) are sometimes very useful in biology.

Venue: via Zoom

Event Official Language: English

Colloquium

iTHEMS Colloquium

Emergence of life in an inflationary universe

May 11 at 15:30 - 17:00, 2020

Dr. Tomonori Totani (Professor, Department of Astronomy, The University of Tokyo)

Venue: via Zoom

Event Official Language: English

Colloquium

iTHEMS Colloquium

Interaction Models in Quantum Optics, Representation Theory and Number Theory

April 10 at 15:30 - 17:00, 2020

Dr. Masato Wakayama (Senior Advisor, iTHEMS / Vice President, Tokyo University of Science)

Venue: via Zoom

Event Official Language: English

Colloquium

MACS Colloquium Supported by iTHEMS SUURI-COOL (Kyoto)

The 11th MACS Colloquium

February 19 at 15:00 - 17:30, 2020

Prof. Hiroyuki Hata (Professor, Graduate School of Science, Kyoto University)

15:00- Teatime 15:15- Talk by Prof. Hiroyuki Hata 16:40- MACS Report Meeting FY2019 The 11th MACS colloquium is supported by iTHEMS. It will be broadcasted to Wako, but if you can join the colloquium physically in Kyoto, that would be better. iTHEMS provides good confectionery at Kyoto!

Venue: Lecture room #401, Graduate School of Science Building No 6, Kyoto University

Event Official Language: Japanese

Colloquium

iTHEMS Colloquium

Exploring the learning principle in the brain

January 16 at 15:30 - 17:00, 2020

Dr. Taro Toyoizumi (Team Leader, Center for Brain Science, RIKEN)

Venue: Large Meeting Room, 2F Welfare and Conference Building (Cafeteria)

Broadcast: R311, Computational Science Research Building / SUURI-COOL (Kyoto) / SUURI-COOL (Sendai)

Event Official Language: English

Colloquium

MACS Colloquium Supported by iTHEMS SUURI-COOL (Kyoto)

The 10th MACS Colloquium

November 15 at 14:45 - 18:45, 2019

Dr. Nami Sakai (Chief Scientist, Star and Planet Formation Laboratory, RIKEN)
Prof. Kazuya Watanabe (Professor, Graduate School of Science, Kyoto University)

14:45- Teatime 15:00- Talk by Dr. Nami Sakai 16:15- Talk by Prof. Kazuya Watanabe 17:45- Discussion The 10th MACS colloquium supported by iTHEMS. It will be broadcasted to Wako, but if you can join the colloquium physically in Kyoto, that would be better. iTHEMS provides good confectionery at Kyoto!

Venue: Lecture room #401, Graduate School of Science Building No 6, Kyoto University

Event Official Language: Japanese

Colloquium

iTHEMS Colloquium

Topological phases of matter and operator algebras

October 4 at 15:30 - 17:00, 2019

Prof. Yasuyuki Kawahigashi (Senior Visiting Scientist, iTHEMS / Professor, Graduate School of Mathematical Sciences, The University of Tokyo)

Venue: Okochi Hall

Broadcast: R511, Computational Science Research Building / SUURI-COOL (Kyoto) / SUURI-COOL (Sendai)

Event Official Language: English

Colloquium

MACS Colloquium Supported by iTHEMS SUURI-COOL (Kyoto)

The 9th MACS Colloquium

July 12 at 16:15 - 18:50, 2019

Prof. Makoto Fujita (Professor, Department of Applied Chemistry, The University of Tokyo)
Prof. Kazutoshi Mori (Professor, Department of Biophysics, Kyoto University, Graduate School of Science)

16:15- Teatime 16:30- Talk by Prof. Makoto Fujita 17:50- Talk by Prof. Kazutoshi Mori The 9th MACS colloquium supported by iTHEMS. It will be broadcasted to Wako, but if you can join the colloquium physically in Kyoto, that would be better. iTHEMS provides good confectionery at Kyoto!

Venue: Lecture room #401, Graduate School of Science Building No 6, Kyoto University

Event Official Language: Japanese

Colloquium

iTHEMS Colloquium

Spacetime Geometry of Black Holes, Wormholes, and Time Machines

July 2 at 15:30 - 17:00, 2019

Prof. Pei-Ming Ho (Department of Physics, National Taiwan University)

Venue: Large Meeting Room, 2F Welfare and Conference Building (Cafeteria)

Broadcast: R511, Computational Science Research Building / SUURI-COOL (Kyoto) / SUURI-COOL (Sendai)

Event Official Language: English

Colloquium

iTHEMS Colloquium

Quantum computing: current status and prospects

April 25 at 15:00 - 16:30, 2019

Dr. Keisuke Fujii (Kyoto University)

Venue: Suzuki Umetaro Hall

Broadcast: R511, Computational Science Research Building / SUURI-COOL (Kyoto) / SUURI-COOL (Sendai)

Event Official Language: English