ニュース

2018-08-14

ホットトピック

International Congress of Mathematicians (ICM) held at Rio de Janeiro, Brasil on August 1 - 4

On the first day August 1, 2018 of the International Congress of Mathematicians (ICM) held at Rio de Janeiro, Brasil, the Fields Medals were awarded to the following four mathematicians. Caucher Bi...続きを読む

2018-08-14

今週の注目人物

Self-introduction: Takumi Doi

My name is Takumi Doi. My main research subject is to unravel the mysteries of nuclear forces from the fundamental theory, quantum chromodynamics (QCD), and hereby to establish the bridge between diff...続きを読む

2018-08-06

今週の注目人物

Self-introduction: Don Warren

I grew up in America, but lived in Japan for a year before starting my Ph.D. course. I earned my doctorate at NC State University, studying cosmic ray acceleration and the morphology of supernova rem...続きを読む

2018-07-30

今週の注目論文

Structural Bifurcation Analysis in Chemical Reaction Networks

In living cells, large numbers of chemical reactions form complicated networks (e.g. metabolic networks). It is considered that dynamics arising from such networks are the origin of biological functio...続きを読む

2018-07-30

今週の注目人物

Self-introduction: Jeffrey Fawcett

My name is Jeffrey Fawcett and I've been working at iTHEMS since March 2018. My main interest is Genome Evolution, and I work on or have worked on a broad range of topics related to genomics, evolutio...続きを読む

2018-07-26

プレスリリース

銀河中心「巨大ガンマ線バブル」の謎に迫る -1000 万年前 の大爆発を X 線で検証-

早稲田大学理工学術院の片岡淳(かたおかじゅん)教授らの研究チームは、東京大学・理化学研究所・金沢大学と共同で、銀河中心から噴出するガンマ線バブルとX線で見られる巨大ループ構造が、ともに1000万年前に起きた大爆発の痕跡である証拠を突き止めました。バブルが膨張する際に周囲の高温ガスを圧縮・加熱し、巨大ループ構造を形成したと考えられます。研究チームは2013年から5年にわたり、日本のX線天文衛星「すざ...続きを読む

2018-07-23

ホットトピック

iTHEMS-CEMS Joint Colloquium was held on July 19

iTHEMS-CEMS Joint Colloquium was held on July 19 at Okochi hall with a distinguished speaker, Prof. A. J. Leggett (Univ. Illinois at Urbana-Champaign). The hall was packed with full of audience ...続きを読む

2018-07-23

今週の注目論文

Hilbert schemes of two points on K3 surfaces and certain rational cubic fourfolds

The goal of birational geometry is the classification of algebraic varieties up to birational equivalence. An algebraic variety is called rational if it is birationally equivalent to the projective sp...続きを読む

2018-07-20

プレスリリース

天の川銀河を包むプラズマの起源を解明

理化学研究所(理研)開拓研究本部玉川高エネルギー宇宙物理研究室の中島真也基礎科学特別研究員と数理創造プログラムの井上芳幸上級研究員らの国際共同研究グループは、天の川銀河を包む高温プラズマの性質と空間分布を調べ、その起源が銀河円盤部からの噴き出しであることを明らかにしました。 天の川銀河を構成する要素は、私たちの目(可視光)に見える星だけではありません。X線を使って観測すると、数百万度もの高温...続きを読む

2018-07-17

ホットトピック

High-energy neutrinos from a gamma-ray emitting supermassive black hole: the dawn of the electroweak sector of multi-messenger astronomy

Background: Since 2010, the IceCube Observatory, utilizing a cubic-km volume of ice in Antartica, has been detecting neutrinos with energies exceeding 100 TeV (~10^13 times the energy of a visible ph...続きを読む

2018-07-17

ホットトピック

Series of lectures at Komaba Campus, Univ. of Tokyo

Series of lectures "Frontiers of Mathematical Sciences: Universe, Matter, Life and Information" were at Komaba Campus, Univ. of Tokyo, on every Wed. April-July, 2018, for the 1st and 2nd year underg...続きを読む

2018-07-17

今週の注目論文

Production of intense episodic Alfvén pulses: GRMHD simulation of black hole accretion disks

The episodic dynamics of the magnetic eruption of spinning black hole (BH) accretion discs and the associated intense shape-up of their jets are studied via three-dimensional general-relativistic magn...続きを読む

2018-07-09

ホットトピック

A first joint meeting between iCeMS (Kyoto Univ.) and iTHEMS on interdisciplinary biology was held on July 4

On July 4, a first joint meeting between iCeMS (Kyoto Univ.) and iTHEMS on interdisciplinary biology was held at the 2nd floor of the Maskawa building in Kyoto Univ. After the welcome address by Pr...続きを読む

2018-07-09

今週の注目人物

Self-introduction: Yosuke Kubota

I am Yosuke KUBOTA, a mathematician who have joined the iTHEMS from 2017. I'm basically working in the area of mathematics called index theory or noncommutative geometry (NCG), which has developed hig...続きを読む

2018-07-02

ホットトピック

Joint innovation seminar between RIKEN iTHEMS and Denso IT lab. was held on June 28

On June 28, joint innovation seminar between RIKEN iTHEMS and Denso IT lab. was held. After the general introduction to the Denso IT lab. There were two talks from Denso IT lab. (Human-car interface...続きを読む

2018-07-02

お知らせ

Mathematics activities in iTHEMS were featured in RIKEN Pamphlet 2018

Mathematics activities in iTHEMS were featured in RIKEN Pamphlet 2018 (in Japanese). Take a look at the photo of our colleagues, Takashi Tsuboi, Yuka Kotorii and Yosuke Kubota (from the left), trying...続きを読む

2018-07-02

今週の注目人物

Self-introduction: Jason Chang

I am Jason Chang, a research scientist at iTHEMS. I received my bachelors and PhD in physics from the University of Illinois at Urbana-Champaign. During my PhD, my focus was on calculating the hadroni...続きを読む

2018-06-29

ホットトピック

Prof. Satoshi Aoki's one day lecture was held on June 26

On June 26, Professor Satoshi Aoki (Kobe Univ.) gave a series of lectures about "computational algebraic statistics and its applications". His lecture is about application of the Grobner basis to sta...続きを読む

2018-06-25

今週の注目人物

Self-introduction: Shun Furusawa

Hello, I am Shun Furusawa, a special postdoctoral researcher of iTHEMS. I received a PhD at Waseda University in September 2013 and then I worked at NAOJ and FIAS as a posdoc. My research area is Nucl...続きを読む

2018-06-22

プレスリリース

数理モデルによる細胞分裂期の染色体ダイナミクスを解析

理化学研究所 理論科学連携研究推進グループ階層縦断型理論生物学研究チームの境祐二特別研究員(研究当時)、開拓研究本部望月理論生物学研究室の立川正志専任研究員、望月敦史主任研究員らの研究グループは、細胞周期の分裂期に見られる染色体の形成と分離のダイナミクスについて数理モデルを用いて解析し、染色体の形成と分離において「コンデンシン」が果たす役割を理論的に解明しました。 本研究成果は、理論と実験の...続きを読む