The Lorenz system still fascinates many people because of the simplicity of the equations that generate such complicated dynamics on the famous butterfly attractor. This talk addresses the role of the stable and unstable manifolds in organising the dynamics more globally. A main object of interest is the stable manifold of the origin of the Lorenz system, also known as the Lorenz manifold. This two-dimensional manifold and associated manifolds of saddle periodic orbits can be computed accurately with numerical methods based on the continuation of orbit segments, defined as solutions of suitable two-point boundary value problems. We use these techniques to give a precise geometrical and topological characterisation of global manifolds during the transition from simple dynamics, via preturbulence to chaotic dynamics, as the Rayleigh parameter of the Lorenz system is increased; joint work with Hinke Osinga (University of Auckland) and Eusebius Doedel (Concordia University, Montreal).

Dr. Hideaki Shimazaki, Program-specific Associate Professor at Kyoto University

Speaker: Dr Yong Yang, Senior Research Fellow, Aston University, UK

Speaker: Prof. Ferrari is based at the Department of Physics, Université Libre de Bruxelles. Aim: To introduce recently developed ideas and techniques on the SYK models and generalizations.

[Geometry, Topology and Dynamics Seminar] Tropical geometry, normal surfaces and the character variety by Stephan Tillmann (University of Sydney)

This workshop will cover the fundamentals of computer vision and structure-from-motion photogrammetry and how they are applied to coral reef biology and ecology.

To register CLICK HERE

[Geometry, Topology and Dynamics Seminar] Topology on tiny machines: logspace and finite-state complexity by Dr. Ben Burton (University of Queensland)

Seminar by Prof. Xiang Cheng, Department of Chemical Engineering and Materials Science, University of Minnesota

Bogna Ignatowska-Jankowska, Research Fellow (Uusisaari Unit). Bring your own lunch.

[Geometry, Topology and Dynamics Seminar] Essential surfaces detected by the character variety by Stephan Tillmann (University of Sydney)

Speaker: Dr. Hiroaki Norimoto Lab for Neural Systems, Max Planck Institute for Brain Research

Title: Sharp-wave ripple production and coordination in sleeping dragons

[Geometry, Topology and Dynamics Seminar] Character varieties, ideal points and actions on trees by Dr. Stephan Tillmann (University of Sydney)

Seminar hosted by TQM unit

OIST members are welcome to attend all scientific sessions - Website: https://groups.oist.jp/imrf

OIST Mini-Symposium The 16th International Membrane Research Forum Featuring 2D-3D Meso-Scale Functional Molecular Complexes and Domains in Cellular Membranes 18 – 20 March 2019

Internal Seminar Series

The Science Challenge is a week-long event where we invite 31 Japanese and international undergrad students to experience the way science is done in OIST.

Throughout the week, among many activities, they will be working on a 4-minute presentation about this year's theme: "Think big, start small".

Come take a peek at what the future of Japanese science will be like.

Neural Computation Unit will hold a retreat/reunion at Seaside House. If you are interested in joining, pleaese contact ncus@oist.jp

Discover how to get the most out of attending an academic or industry conference.

Everyone is welcome!

In this workshop, you will learn the strategies for communicating your ideas and brand (your promise of value) in such a way that your constituents want to learn more and can visualize how your innovative attitude will benefit them.

Everyone is welcome!

Discover how networking and self-promotion can enable you to land or even create your dream job from scratch!

Everyone is welcome! Post-event survey SUMMARY

Details are coming soon...

Speaker: Mr. Martini is currently in his last year as a Ph.D. student at University of Jena, Germany.

Speaker: Dr. Masazumi Honda, University of Cambridge

host by TQM unit

Speaker: Mr. Martini is currently in his last year as a Ph.D. student at University of Jena, Germany.

Make your voice heard! Complete the Researcher Survey.

Speaker: Prof. Ben L. Feringa

Seminar by Chushun Tian, Professor at Institute of Theoretical Physics, Chinese Academy of Sciences. All is welcome.

Prof. Andrzej Cichocki

Skolkovo Institute of Science and Technology (SKOLTECH), Moscow

"Tensor Decomposition and Tensor Networks and their applications, especially in Brain Computer Interface and recognition of Human Emotions"

Speaker: Mr. Sadovski is currently in his last year as a Ph.D. student at Universidad Federal Fluminense, Brazil.

Internal Seminar Series

Internal Seminar Series

OIST members are welcome to attend all scientific sessions - Website: https://groups.oist.jp/fpua2019

Speaker: By Dr Joshua Goldberg, Department of medical Neurobiology, The Hebrew University of Jerusalem http://joshgoldberg.ekmd.huji.ac.il

Seminar by George Elliott (University of Toronto). All is welcome. Feb.27, 2019, 14:00-16:00 (C210)

Everybody is welcome to attend the OIST Researcher Community (ORC) Assembly .

Dear Research Unit Technicians

We woul d like to announce the start of 2019 quarterly networking lunches for the Research Unit Technicians (RUT) at OIST. This year we will run these through ORC , and w e w ould like to have your input on anything related to working as a technician at OIST.

Date: Tuesday 26th February

Venue: C2 09 (Center Bldg.)

Time: 12:00-13:00

Speaker: Prof. Peter Zoller, Managing and Research Director, Institut für Quantenoptik und Quanteninformation, Austria

Discover your Talens using Gallup CliftonStrengths Assessment .

This course will help you better understand yourself and your unique talents . You will learn how to productively apply your talents for greater personal and professional success .

To register CLICK HERE Post-workshop survey SUMMARY

Abstract: The sphere packing problem in d dimensions asks for the densest packing of spheres in d-dimensional Euclidean space R^d. Prior to 2016, the problem had only been solved in dimensions 2 and 3 (with the solution in dimension 3 being Hales's famously complicated solution to Kepler's conjecture), and solutions in most other dimensions were thought to be out of reach, except for dimensions 8 and 24 where overwhelming numerical and theoretical evidence supported the conjectures pointing at specific lattices as the optimal packings. In a breakthrough in 2016, Maryna Viazovska published a stunning proof for the 8-dimensional case, followed up shortly with a proof for the 24-dimensional case with several coauthors. The solutions work by using a previous reduction of the problem (due to Henry Cohn and Noam Elkies) to a problem in harmonic analysis, and ingeniously solving that analysis problem using number-theoretic tools - specifically, the mathematics of modular forms. In this talk I will give a quick survey of these developments and the beautiful new challenges and opportunities that they open up for attacking this classical geometry problem. I will also discuss my own recent results on infinite series representations for the Riemann xi function and explain how Viazovska's work, which appears not strongly related to the problem I was studying, nonetheless provided me with useful inspiration.

Speaker: Prof. Peter Zoller of Physics with tenure, Institute for Theoretical Physics, University of Innsbruck, Austria, vice dean of studies (2001-2004), Head of the Institute of Theoretical Physics (1995-1999)

Speaker: Dr. Farnsworth currently holds a Postdoctoral position at the Max Planck Institute for Gravitational Physics, Potsdam-Golm, Germany.

Dr. Çağlar Girit, French National Research Agency (CNRS) & College de France

An ORC officer will be available every Monday from noon to 1pm in room B705a.

Prof. Rieko Osu, Waseda University

"Skill and choice – implication from stroke rehabilitation"

Speaker: Prof. Amin Chabchoub, Environmental Fluid Mechanics, The University of Sydney

We're inviting Professor Matsuki from Osaka University, and Dr. Takahashi from JEOL Resonance, Inc.

These seminars are registration-free, and you can attend both or either of them.

*If you're not an OIST member, please contact Kazuo Yamauchi( kazuo.yamauchi@oist.jp ) for registration.*

Special Lecture by Prof. Noriko Yui (Queens University). All is welcome.

[Geometry, Topology and Dynamics Seminar] Ramified covering maps of spheres and arboreal polygons by Dr. Michael Kapovich (UC Davis)