# Seminar

## Tensor Berry connections and their topological invariants

April 2 at 14:00 - 15:00, 2019

Dr. Giandomenico Palumbo (Researcher, Université Libre de Bruxelles, Belgium)

Venue: Seminar Room #160

Event Official Language: English

## Machine Learning for Intelligent Multiscale Modeling of Platelet Dynamics

March 19 at 15:00 - 17:00, 2019

Prof. Yuefan Deng (Professor, Applied Mathematics Department, Stony Brook University, USA)

Venue: 224-226, Main Research Building

Event Official Language: English

## On special values of the multiple zeta functions of Arakawa-Kaneko type

March 16 at 15:00 - 17:30, 2019

Dr. Yasuo Ohno
(Professor, Mathematical Institute, Tohoku University)

Dr. Yuta Suzuki
(JSPS Research Fellow, Graduate School of Mathematics, Nagoya University)

Venue: Seminar Room #160

Event Official Language: English

## Joint value distribution of quadratic L-functions (joint work with Hirofumi Nagoshi)

February 25 at 16:20 - 17:20, 2019

Prof. 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<Re(s)<1 can be uniformly approximated b...more

Venue: Seminar Room #160

Event Official Language: English

## Symmetric Tornheim double zeta functions

February 25 at 15:00 - 16:00, 2019

Dr. 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 evaluat...more

Venue: Seminar Room #160

Event Official Language: English

## Biology Seminar

December 13 at 14:00 - 16:00, 2018

Dr. Yusuke Kazama
(RIKEN Nishina Center)

Dr. Jeffrey Fawcett
(Senior Research Scientist, iTHEMS)

Speaker: Jeffrey Fawcett (iTHEMS) Title: Introduction to Genomics Abstract: The genetic information, or the genome, of almost all species are determined by the order (i.e. the "sequence") of mil...more

Venue: Seminar Room #160

Event Official Language: English

## ABBL-iTHEMS Joint Seminar 3

December 7 at 14:00 - 15:00, 2018

Dr. Takashi Sako (ICRR, U. Tokyo)

Title: Cosmic-ray air showers: new arrays for searching origins and link to the collider physics

Venue: Seminar Room #160

Event Official Language: English

## Probability density functions attached to zeta functions

December 6 at 16:00 - 17:00, 2018

Dr. Masahiro Mine (Tokyo Institute of Technology)

The study of the value-distribution of the Riemann zeta function is a classical topic in analytic number theory. In 1930s, Bohr and Jessen proved the existence of a certain limit value regarded as th...more

Venue: Seminar Room #160

Event Official Language: English

## On A_2-liftings of sum formulas and Bowman-Bradley type formulas for finite multiple zeta values

November 22 at 11:40 - 12:40, 2018

Dr. Shin-ichiro Seki (Tohoku University)

Both the sum formula and Bowman-Bradley's theorem for multiple zeta values are well known. Recently, Saito and Wakabayashi proved counterparts of these two formulas for A-finite multiple zeta values. ...more

Venue: Seminar Room #160

Event Official Language: English

## Generating functions of CM & RM values

November 22 at 10:30 - 11:30, 2018

Dr. Toshiki Matsusaka (Kyushu University)

The special values of the elliptic modular j function j(z) at imaginary quadratic points are known as singular moduli (CM values), and play important roles in algebraic number theory. As a real quadra...more

Venue: Seminar Room #160

Event Official Language: English

## ABBL-iTHEMS Joint seminar 2

November 16 at 14:00 - 16:00, 2018

Dr. Tada-aki Isobe (RIKEN Nishina Center)

Title: Study of density dependent nuclear symmetry energy by using heavy RI collisions at RIKEN-RIBF Abstract: The nuclear Equation of State (EoS) is a fundamental property of nuclear matter. An inte...more

Venue: Seminar Room #160

Event Official Language: English

## Spintronics in Non-Inertial Frames

November 15 at 13:00 - 18:00, 2018

Prof. Mamoru Matsuo (University of Chinese Academy of Sciences, China)

非慣性系におけるスピン流生成の微視的計算の概略を把握していただくことを目標に，以下3項目を扱う． (1) スピン接続と回転系のDirac方程式 非慣性系の一種である回転系のスピンダイナミクスを調べるために，一般共変Dirac方程式の低エネルギー展開から，スピン・回転結合とよばれる相互作用が誘起されることを示す． (2) 非平衡グリーン関数法と非磁性金属/磁性体界面のスピン輸送 非慣性系のスピ...more

Venue: Seminar Room #160

Event Official Language: Japanese

## ABBL-iTHEMS Joint Seminar

November 12 at 14:00 - 15:00, 2018

Dr. Volodymyr Takhistov

Title: New Venues in Formation and Detection of Primordial Black Hole Dark Matter Abstract: Primordial black holes (PBH) provide an attractive non-particle dark matter (DM) candidate. I will discus...more

Venue: Seminar Room #160

Event Official Language: English

## The 28th QCD Club

November 9 at 15:00 - 17:00, 2018

Prof. Kazuyuki Kanaya (Professor, Institute of Pure and Applied Sciences, University of Tsukuba)

Title: Application of a gradient flow method to thermodynamics of QCD with dynamical quarks Language: Japanese or English

Venue: #433, Main Research Building

Event Official Language: English

## Population genetics of duplicated genes

November 1 at 15:30 - 18:00, 2018

Prof. Hideki Innan (SOKENDAI)

Venue: Seminar Room #160

Event Official Language: English

## Assembly rules and a theory for invasion and extinction in minimal food webs

October 29 at 15:00 - 18:00, 2018

Prof. Namiko Mitarai (Niels Bohr Institute, Denmark)

We propose a theory of the evolution of a minimal food web by sequential invasion of new species [1]. Our theory is based on the standard generalized Lotka-Volterra equations, where basal species comp...more

Venue: Seminar Room #160

Event Official Language: English

## Relations between fractal dimensions and arithmetic progressions

October 23 at 11:35 - 12:35, 2018

Mr. Kota Saito (Nagoya University)

In this talk we give estimates for the dimensions of sets in real numbers which uniformly avoid finite arithmetic progressions. More precisely, we say that $F$ uniformly avoids arithmetic progressions...more

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

Event Official Language: English

## Generalized Erdös and Obláth theorem for polynomial-factorial Diophantine equations

October 23 at 10:30 - 11:30, 2018

Mr. Wataru Takeda (Nagoya University)

Diophantine equations are equations where only integer solutions are accepted. There are many types of Diophantine equations and many results are known. Our Diophantine equation is of the form x^n+y^n...more

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

Event Official Language: English

## Non-Hermitian phase transition from a polariton Bose-Einstein condensate to a photon laser

September 28 at 13:30 - 17:00, 2018

Dr. Ryo Hanai (Osaka University)

Venue: Seminar Room #160

Event Official Language: Japanese

## Number Theory Seminar

July 24 at 10:00 - 12:35, 2018

Dr. Masataka Ono
(Keio University)

Dr. Shingo Sugiyama
(Nihon University)

Mr. Yoshinosuke Hirakawa
(Keio University)

This seminar is aimed at scientists in general, not only to mathematicians. 10:00-10:45 "Multiple zeta functions associated with 2-colored rooted trees" Masataka Ono 10:55-11:40 "Modular forms and...more

Venue: Seminar Room #160

Event Official Language: English