CFF unit is pleased to invite you to the seminar!

Title: Tensor Field Theories: Renormalization and Random Geometry

Abstract: In the talk, I will share an overview of my research during my PhD thesis. After a practically-minded introduction to renormalization and conformal field theories (CFT), we will see the essential tools developed for tensor models and their large-$N$ expansion. In the second part, I will focus on results of $d>1$ tensor field theories: melonic CFTs, breaking of symmetries. In the last part, we will revive an old approach to study and renormalize an interacting scalar quantum field theory on Galton-Watson random trees, through random walks, which may prove useful for tensor models to escape the melonic large-$N$ limit.

Zoom:

https://oist.zoom.us/j/94081328725?pwd=aFBTdkUvZTdXVU1BYTd6bTUvZHJKdz09

Meeting ID: 940 8132 8725 Passcode: 609087

Language: English

For OIST members:

Users meeting and Seminar are registration free. We look forward to your participation via Zoom.

For Non-OIST members:

Please contact ias@oist.jp for Seminar sign up. (Users meeting is an internal event.)

Join in person or by Zoom (Meeting ID: 910 5926 8116 Passcode: 989063)

Tohoku Quantum Alliance (TQA) from Tohoku University and OIST research groups which focus on quantum physics will have a joint meeting to present their current work and explore future collaboration opportunities.

This will be mainly held at L4E48 on the 24th and C210 on the 25th following the “New Normal” guidelines. The number of seats at seminar rooms are limited and all seats are filled on a first-come, first-serve basis. Everyone else from both Tohoku and OIST research communities is welcome to join the seminar by Zoom For further detail, please visit https://groups.oist.jp/toq .

Prof Si Wu of Peking University, China will give a talk for the OIST neuroscience online seminars (ONOS) series on the topic of "Visual information processing through the interplay between fast and slow pathways". Prof Wu is a PI of IDG/McGovern Institute for Brain Research and the Center for Life Science at Peking University. He is also the Co-editor-in-chief of Frontiers in Computational Neuroscience.

Dr. Franz Gmeineder , University of Bonn Title:\(\mathscr{A}\)-quasiconvexity and partial regularity

Speaker: Qi Wang, Osaka University Title: On τ -tilting finiteness of Schur algebras

QG group meeting. Speaker: Yasha Neiman. Title: "Scalar^3 scattering in the dS static patch"

Inter-unit journal club presentation by Dr Sam Reiter, leader of the Computational Neuroethology Unit, who will discuss a recent article from Nature Methods entitled " EthoLoop: automated closed-loop neuroethology in naturalistic environments "

Meeting link: https://oist.zoom.us/j/95700149323?pwd=VWQxY0FGQmxVQmtUTVZ2SXRnMGx6dz09 Meeting ID: 957 0014 9323 Passcode: 855303

Associate Professor Chun-Yen Shen , National Taiwan University Title: Algebraic methods in sum-product estimates and their applications

★SPECIAL LECTURE Associate Professor Dmitriy Stolyarov , St. Petersburg State University and St. Petersburg Department of Steklov Mathematical Institute Title: Hardy--Littlewood--Sobolev inequality for \(p=1\): Part 2, Proof.

Language: English

TQM unit is pleased to invite you to the seminar!

Speaker: Jieru Zhu, Hausdorff Institute of Mathematics Title: Double centralizer properties for the Drinfeld double of the Taft algebras

Dr. Martin Skrodzki, iTHEMS program, RIKEN (Wako Campus), Japan. Language: English, no interpretation.

This is the weekly QG group meeting. Speaker: Mirian Tsulaia. Title: "Some applications of self dual YM equations"

Takanobu Hara , Postdoctoral Scholar, Hokkaido University　 Title: Trace inequalities of Sobolev type and nonlinear Dirichlet problems

★SPECIAL LECTURE Associate Professor Dmitriy Stolyarov , St. Petersburg State University and St. Petersburg Department of Steklov Mathematical Institute Title: Hardy--Littlewood--Sobolev inequality for \(p=1\): Part 1, Plan.

Language: English

STEM分野で博士課程やリサーチインターンシップに興味がある人を対象としたセッションです。言語は日本語で行われます。OISTの博士課程やリサーチインターン、それぞれの出願プロセス、入学後の流れ、経済支援、大学院生活などが紹介され、ゲストスピーカーとして、OISTの修了生1名が登壇します。今回は脳神経科学を専門とした修了生が登壇しますが、それ以外の分野の方も、もちろん歓迎です！

Assistant Professor Armin Schikorra , University of Pittsburgh Title: Scale-invariant tangent-point energies for knots and fractional harmonic maps

TQM unit is pleased to invite you to the seminar！

CFF unit is pleased to invite you to the seminar!

Speaker: Rob Muth, Washington and Jefferson College Title: Specht modules and cuspidal ribbon tableaux

Prof. Nozomi Ando , Cornell University

ZOOM LINK IS HERE

https://oist.zoom.us/j/92166985125?pwd=Mm9ldEQ0Z0xwaXRLdmYrT1ZtVVRKUT09

Meeting ID: 921 6698 5125 Passcode: 883637

Recent discussions in neuroscience have been arguing about the necessity of a revision to our approach in neuroscience. A common approach in neuroscience starts from a phenomenon such as attention or memory as defined from our psychological heritage, trying to find a brain correlate of this phenomenon. This method has been argued to be suffering from two main problems first is the loosely defined psychological terms and second is the correlation fallacy that has been a major concern in neuroscience. We invited two experts in neuroscience from both OIST and RIKEN trying to get their insight on this problem and how different experimental, mathematical and analytical techniques will help us frame a new path in neuroscience research.

Topic: ONOS discussion seminar Time: Oct 23, 2020 04:00 PM Osaka, Sapporo, Tokyo

Theoretical Physics Seminar. Speaker: Simone Pigolotti (Biological Complexity). Title: "Bifractal nature of chromosome contact maps"

Associate Professor Dmitriy Stolyarov , St. Petersburg State University and St. Petersburg Department of Steklov Mathematical Institute Title: Hardy--Littlewood--Sobolev inequality for \(p=1\)

October 22 2020, at 12:00 (room C209 and zoom ), Kevin Dorgans (Postdoctoral Scholar at Neuronal Rhythms in Movement Unit led by Marylka Yoe Uusisaari) will give a Talk on "In vitro imaging of subthreshold voltage oscillation in the inferior olive"

TQM unit is pleased to invite you to the seminar!

Language: English

Professor Ulrich Menne , National Taiwan Normal University and National Center for Theoretical Sciences Title: A priori geodesic diameter bounds for solutions to a variety of Plateau problems

TQM unit is pleased to invite you to the seminar!

Dr. Risaku Hirai, Nara Institute Science and Technology

We are going to hold an online symposium that brings together researchers in the forefront of AI and neuroscience. All talks will be made accessible as pre-recorded movies and we will have two-hour live discussion sessions on October 10-12, 2020.

For joining the symposium, please register by September 30th.

Theoretical Physics Seminar. Speaker: Guilherme Sadovski (Gravity, Quantum Geometry and Field Theory). Title: "Why is the world four-dimensional?"

Professor Augusto Ponce , Catholic University of Louvain Title: A topological toolbox for Sobolev maps

TQM is pleased to invite you to the seminar!

Language: English

Reservation required

Application Deadline: Sep 2 (Wed)

STEM分野で博士課程やリサーチインターンシップに興味がある人を対象としたセッションです。言語は英語で行われます。OISTの博士課程やリサーチインターン、それぞれの出願プロセス、入学後の流れ、経済支援、大学院生活などが紹介され、ゲストスピーカーとして、OISTの現役博士課程学生2名が登壇します。今回は物理学分野を専門とした2名が登壇しますが、それ以外の分野の方も、もちろん歓迎です！

Cody Bullett Stockdale , Postdoctoral Scholar, Clemson University Title: Sparse domination results for compact operators

TQM unit is pleased to invite you to the seminar!

Language: English

Reservation required

Application Deadline: Sep 2 (Wed)

Speaker: Mahir Can, Tulane University Title: Spherical Varieties and Combinatorics

Abstract: Let G be a reductive complex algebraic group with a Borel subgroup B. A spherical G-variety is an irreducible normal G-variety X where B has an open orbit. If X is affine, or if it is projective but endowed with a G-linearized ample line bundle, then the group action criteria for the sphericality is in fact equivalent to the representation theoretic statement that a certain space of functions (related to X) is multiplicity-free as a G-module. In this talk, we will discuss the following question about a class of spherical varieties: if X is a Schubert variety for G, then when do we know that X is a spherical L-variety, where L is the stabilizer of X in G.

We regret to inform you that CQD2020 has been cancelled due to the situation with COVID-19 | Website

This is the weekly QG group meeting. Speaker: Yasha Neiman. Title: "S-matrix vs. lightcone formalism in de Sitter space"

Theoretical Physics Seminar. Speaker: Yasha Neiman (Quantum Gravity). Title: "Scattering in the causal diamond"

What kind of questions should I be asking when I meet someone from another culture for the first time? How do I avoid making a bad first impression? What kind of communication strategy should I have?