Volume 42
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Upcoming Events
Seminar
Number Theory Seminar
Symmetric Tornheim double zeta functions
February 25 (Mon) at 15:00 - 16:00, 2019
Takashi Nakamura (Tokyo University of Science)
Let $s,t,u \in {\mathbb{C}}$ and $T(s,t,u)$ be the Tornheim double zeta function. We investigate some properties of symmetric Tornheim double zeta functions. As a corollary, we give explicit evaluation formulas for $T(s,t,u)$ in terms of series of the gamma function and Riemann zeta function.
Venue: Seminar Room #160, 1F Main Research Building, RIKEN
Event Official Language: English
Seminar
Number Theory Seminar
Joint value distribution of quadratic L-functions (joint work with Hirofumi Nagoshi)
February 25 (Mon) at 16:20 - 17:20, 2019
Hidehiko Mishou (Tokyo Denki University)
In 1975, Voronin established the universality theorem for the Riemann zeta function. Roughly speaking this theorem asserts that any holomorphic function on 1/2
Venue: Seminar Room #160, 1F Main Research Building, RIKEN
Event Official Language: English
Math Lecture
Theory of Operator Algebras
Theory of Operator Algebras (8th)
March 5 (Tue) at 14:00 - 15:00, 2019
Yosuke Kubota (Research Scientist, iTHEMS)
Title: An introduction to operator algebras
Abstract: Operators are linear maps from a (usually an infinite dimensional) linear space (most frequently the Hilbert space) to itself, which is like matrices of infinite degree. Operators form an algebra by obvious addition and multiplication. Operators appear in most of the fields in mathematics, in algebra, in geometry, in analysis, ... Some of the key words at the beginning of these lectures are "spectral theory" "operator algebras" "Tomita-Takesaki theory". These lectures are for non-professional people.
Venue: Seminar Room #160, 1F Main Research Building, RIKEN
Event Official Language: Japanese
Math Lecture
Theory of Operator Algebras
Theory of Operator Algebras (9th)
March 5 (Tue) at 15:30 - 16:30, 2019
Yosuke Kubota (Research Scientist, iTHEMS)
Title: An introduction to operator algebras
Abstract: Operators are linear maps from a (usually an infinite dimensional) linear space (most frequently the Hilbert space) to itself, which is like matrices of infinite degree. Operators form an algebra by obvious addition and multiplication. Operators appear in most of the fields in mathematics, in algebra, in geometry, in analysis, ... Some of the key words at the beginning of these lectures are "spectral theory" "operator algebras" "Tomita-Takesaki theory". These lectures are for non-professional people.
Venue: Seminar Room #160, 1F Main Research Building, RIKEN
Event Official Language: Japanese
Workshop
Workshop of Nuclear-Astrophysics by UKAKUREN/Japan Forum of Nuclear Astrophysics (JaFNA): Nuclear data & Heavy Element Nucleosynthesis
March 6 (Wed) - 8 (Fri), 2019
We are pleased to announce that we will have a meeting on Nuclear-Astrophysics at Hokkaido Univ. Especially this time we will focus on the impact of nuclear data & nucleosynthesis of heavy elements. Gravitational wave is another keyword.
This workshop is held by UKAKUREN (JaFNA), together with Nuclear Reaction Data Centre, Hokkaido University (JCPRG). This workshop is supported by iTHEMS, CNS, RCNP, NAOJ, KEK, and WNSC.
You are welcomed to join us. For registration, please fill in the attached form (in Japanese) and send it to: sec-ukakuren18@kek.jp by 30th November 2018.
We are looking forward to seeing you at Hokkaido U.
Organizers
T. Kajino (Chair), T. Kawabata (Osaka), H. Utsunomiya (Konan), S. Nishimura (RIKEN), H. Yamaguchi (CNS), T.Hayakawa (QST), T.Motobayashi (RIKEN),
K.Terada(Osaka), S.Nagataki(RIKEN), S.Chiba(TIT), T.Tamagawa(RIKEN), W.Aoki(NAOJ), S.Wanajo(AEI), S.Kubono(RIKEN), T.Shima(RCNP)
Venue: Hokkaido University Conference Hall
Event Official Language: Japanese
Math Lecture
Introduction to Public-Key Cryptography
Introduction to Public-Key Cryptography (9th)
March 6 (Wed) at 13:30 - 15:00, 2019
Eren Mehmet Kıral (Visiting Scientist, iTHEMS / Visiting Scientist (JSPS Research Fellow), Faculty of Science and Technology, Sophia University)
Venue: Seminar Room #160, 1F Main Research Building, RIKEN
Event Official Language: English
Colloquium
iTHEMS Colloquium
ZetaValue2019-iTHEMS Special Mathematics Colloquium
March 21 (Thu) at 14:00 - 17:30, 2019
Kohji Matsumoto (Professor, Nagoya University)
Jörn Steuding (University of Würzburg, Germany)
Prof. Kohji Matsumoto (Nagoya University)
"An overview of the theory of multiple zeta-functions"
Multiple zeta-functions are generalizations of the Riemann zeta-function, and its theory has been rapidly developed in these decades. It is connected with various fields of mathematics and mathematical physics. In this talk I will give an overview of some part of recent developments, mainly from the analytic viewpoint.
Prof. Jörn Steuding (University of Würzburg, Germany)
"On the Infinite in Number Theory"
Beginning with two simple examples from elementary number theory (one of diophantine origin and one of arithmetical nature), we discuss the role of “infinity” in number theory. We touch upon topics like how to find good rational approximations to irrational quantities and the distribution of prime numbers. We conclude with a motivation of the big open question in this field, namely, the Riemann hypothesis (one of the six unsolved millennium problems) and the Langlands program.
Venue: Okochi Hall, 1F Laser Science Laboratory, RIKEN
Event Official Language: English
Workshop
Value distribution of zeta and L-functions and related topics
March 22 (Fri) - 27 (Wed), 2019
March 22–26, 2019
Main Conference (invited talks, posters and a limited number of short contributed talks)
Welcome Reception: March 22, 2019 (18:00~20:00)
Conference Dinner: March 25, 2019 (18:30~21:00)
March 27, 2019 (9:30~17:00)
One-day Workshop (a series of short contributed talks by young researchers to facilitate active discussions)
ORGANIZING COMMITTEE
Ade Irma Suriajaya (RIKEN)
Yoshinosuke Hirakawa (Keio University)
Masataka Ono (Kyushu University)
Shin-ichiro Seki (Tohoku University)
Keiju Sono (Ehime University)
Shingo Sugiyama (Nihon University)
Yuta Suzuki (Nagoya University)
ADVISORY COMMITTEE
Tetsuo Hatsuda (RIKEN iTHEMS)
Kenichi Bannai (Keio University, RIKEN AIP Center)
Venue: Okochi Hall, 1F Laser Science Laboratory, RIKEN / Large Meeting Room, 2F Welfare and Conference Building (Cafeteria), RIKEN
Event Official Language: English
Workshop
iTHEMS-AIMR Joint Workshop "Medicine meets Mathematics"
March 29 (Fri) at 10:00 - 17:00, 2019
Speakers:
Takuya Ueda (Tohoku Univ. Hospital)
Noriaki Ogawa (RIKEN iTHEMS)
Takayuki Sakajo (Math. Dep., Kyoto Univ.)
Yoshiki Sugitani (AIMR, Tohoku Univ.)
Jun Seita (RIKEN MIH)
Tetsuro Sekine (Nippon Medical School Hospital)
Masato Taki (RIKEN iTHEMS)
Kenji Takizawa (Faculty of Sci. and Eng., Waseda U.)
Hosted by SUURI-COOL Sendai(iTHEMS-AIMR Mathematical Science Cooperative Lab.)
Co-hosted by iTHEMS, AIMR
Sponsored by CREST "New Challenges for Mathematical Modeling in Clinical Medicine"
Organizers: Hiroshi Suito (AIMR), Tetsuo Hatsuda (iTHEMS)
Venue: 3rd floor Lecture Theater, Katahira Campus, Tohoku University
Event Official Language: Japanese
School
g-RIPS Sendai 2019
June 17 (Mon) - August 9 (Fri), 2019
GRIPS (Graduate-level Research in Industrial Projects for Students)-Sendai program was held last summer (June 18 - Aug. 10, 2018) with the support of iTHEMS as well as other institutions and companies. Two industrial projects were launched under the suggestion of TOYOTA and NEC, and two teams composed of US and Japanese students have worked intensively to find solutions of these problems. See for the details of the GRIPS program and the summary of activities at GRIPS-Sendai 2018.
This year, GRIPS-Sendai program will be held from June 17 through Aug. 9, 2019 with a larger scale under the support of iTHEMS. Stay tuned for further information.
Event Official Language: English
Upcoming Visitors
February 26 (Tue) - March 8 (Fri), 2019 Masami KajiuraFreelance writer, translator Visiting Place: RIKEN Wako Campus |
February 26 (Tue) - March 26 (Tue), 2019 Gordon BaymSenior Visiting Scientist, iTHEMS / Professor Emeritus, University of Illinois, USA Research fields: Quantum Many-body Theory Visiting Place: Main Research Building |
February 25 (Mon) - March 23 (Sat), 2019 Hiroyuki FujiAssociate Professor, Faculty of Education, Kagawa University Visiting Place: #157, 1F, Main Research Building |
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