Speaker: Sylvester Eriksson-Bique, University of Jyv¨askyl¨a

Title: P-Dirichlet spaces and the resolution of the resistance and energy image density conjectures

Abstract: I will describe the resolution of two conjectures related to Dirichlet forms. In both cases a conceptually simple solution arises by stepping away from the p=2 regime. This leads to a new definition of a p-Dirichlet space, which unifies three quite different areas: Dirichlet form theory, Analysis on fractals and Analysis on metric spaces. The talk includes joint work with Mathav Murugan

Speaker: Aleksis Koski, Aalto University

Title:The Trace Theorem for Sobolev Homeomorphisms

Abstract: Classical Sobolev trace theory tells us when a boundary map can be extended as a Sobolev function inside a given domain in R^n. For the purposes of minimization problems in Nonlinear Elasticity, it is natural to rephrase this question in the context of extending a given embedding of the boundary as a homeomorphic Sobolev map. In this talk, I will explain what is known about this problem, ending with a full trace theory for Sobolev homeomorphisms in 2D.

Dr. Giovanni Consoli, Postdoctoral Fellow from Imperial College London

Evident FV5000 seminar and demonstration

Date: Monday, February 2, 2026 - 11:00 to 12:00 @L5D23, Lab5

Title: "Looking at neurodevelopmental disorders through the lens of evolution: a role for the autolysosomal pathway"

Speaker: Prof. Nael Nadif Kasri, Radboud University

QG Seminar Speaker: Veronica Collazuol (IFT Madrid) Title: The Boundary of Symmetric Moduli Spaces and the Distance Conjecture

TSVP Talk Language: English (no interpretation). Target audience: General audience / everyone at OIST and beyond. Freely accessible to all OIST members and guests without registration (also via Zoom).

Onna Elementary’s mandatory orientation is on February 5 ^th . To support non-Japanese speaking OIST parents, the Educational Support Services (ESS) Team would like to hold a pre-orientation event so that the February 5 ^th orientation will be even more beneficial.

During this event, we will provide an overview of the annual school schedule and key events, explain what to prepare and how, outline what to expect in classes, and share general requirements of the Japanese school system.

Although this event is mainly directed at parents of incoming Onna Elementary School 1 ^st grade students, parents of all children are welcome to attend .

Event details:

Title: Onna Elementary School incoming 1 ^st grader pre-orientation

Date: Thursday, January 29th

Time: 12:05PM – 12:55PM

Location: Center Building C210

We look forward to seeing you there.

A series of short (5-20 minute) talks by Thematic Program " Isogeny-Based Cryptography" participants

Title: Harnack’s inequality for nonlocal parabolic equations

Speaker: Prof. Naian Liao (University of Salzburg)

沖縄の農業が直面するリアルな課題について、農家、スタートアップ、イノベーション分野のリーダーが一堂に会し、共に考えるイベントです。

本イベントは日英同時通訳付きのハイブリッド開催となります。

地域の専門家が、農家が直面している課題について短く要点を絞ったインサイトを共有し、その後、起業家による解決策がどのように課題解決につながるかをテーマにパネルディスカッションを行います。さらに、アーリーステージのスタートアップが技術やアイデアをピッチします。

イベントの最後には交流の時間を設け、つながりを深め、新たな協働や沖縄農業の未来につながるパートナーシップ創出の機会を提供します。

Title: Phragmén-Lindelöf-type results for functions in homogeneous De Giorgi classes

Speaker: Prof. Ugo Gianazza (University of Pavia)

Talk by Thomas Astner, Austrian Academy of Sciences (Austria).

旅費相談会を開催いたします。

January 27th (Tue) @A151 Center Bldg. 15:00-16:00

OIST-Keio Showcase Talk Series Vol. 9 – Proteins in Focus: Cryo-EM and Structural Frontiers

The ninth edition of the OIST-Keio Showcase Talk Series brings together experts from Keio University, The University of Osaka’s Institute for Protein Research, and OIST to explore cutting-edge advances in protein science and cryo-electron microscopy. Talks will cover drug design, photosynthetic complexes, molecular motors, enzyme evolution, and viral architectures. This symposium highlights how cryo-EM is transforming our understanding of molecular mechanisms and driving innovation in medicine, biotechnology, and environmental science - with the aim of connecting researchers across institutions to enable interdisciplinary innovation.

This symposium will be followed by the 2026 Cryo-Electron Microscopy Course from January 28 to 30, which is aimed at beginners (admission is free). There experienced researchers will provide an overview of the current state-of-the-art and share their experiences in demonstrations and hands-on practice.

Title: A single emitter emitting resonance fluorescence into a coherent beam

Speaker: Mr Tomas Lamich, ICFO, Spain

Language: English

Guest Seminar by Bourguignon Unit. Guest: Dr. Chisaki Kitajima, Assistant Professor, Faculty of Design, Kyushu University

Title: Design of Deployable Structures Based on Geometry and Biomimetics

Abstract This research investigates deployable structures that can be compactly folded for transportation and storage and expanded to form spatial configurations. To address challenges such as material interference due to thickness, fabrication complexity, and construction safety, three fundamental operations—folding, cutting, and weaving—are identified and systematically applied as design strategies. Drawing on biomimetic principles inspired by insect hindwings and fungal net-like structures, the study develops geometry-based design models for each operation. By integrating geometry, biomimetics, and deployable design, this research demonstrates new possibilities for architectural deployable structures.

進化ゲノミクスユニット：ゲストセミナー ゲスト： 北島千朔氏, 九州大学大学院芸術工学研究院人間生活デザイン部門助教

発表タイトル： 幾何学および生物模倣に基づく展開構造物の設計

要旨： 本研究は、運搬・収納時に小さく折りたたみ、展開によって空間を構成する展開構造物を対象とする。部材厚みによる干渉や施工の複雑性といった課題に対し、「折る」「切る」「編む」という三つの形態操作を整理し、それぞれに対応した設計手法を提案した。さらに、ハサミムシ後翅やキヌガサタケ菌網などの生物構造を模倣し、幾何学的条件に基づく設計モデルを構築した。これにより、展開構造物の新たな設計可能性を示す。

[Speaker] Prof. Jeff Morris, Professor, CUNY City College of New York, Director, Levich Institute and Department of Chemical Engineering

Bruker seminar for Multiphoton imaging

Jan. 23rd (Fri) 13:00-14:00

Open to OIST community

Grad School workshop for Students, Faculty and Interested Staff on the responsible and ethical use of Generative AI tools. Use cases, guidelines, and exchange of views on best practice and future trends.

A beginner's introduction to using the clusters and other computing resources at OIST. This is the second, hands-on session.

Career Panel Language: English (no interpretation). Target audience: General audience / everyone at OIST and beyond. Freely accessible to all OIST members and guests without registration (also via Zoom).

QG Seminar Speaker: Max Velasquez Cotini Hutt (Imperial College London)

Title: Non-invertible Symmetries of 2d Non-Linear Sigma Models

The command line is the primary way to use the high performance computing resources at OIST. Here we quickly learn the basics we need to become comfortable and productive.

Talk Title: AI in Drug Discovery A whirlwind tour of how machine learning and genomics are changing how we are performing drug discovery at Relation Therapeutics.

TSVP Talk Language: English (no interpretation). Target audience: General audience / everyone at OIST and beyond. Freely accessible to all OIST members and guests without registration (also via Zoom).

Pavel Turek , OIST Title: Balanced columns of decomposition matrices

Seminar: DFG Funding Portfolio and the Research Landscape in Germany (German Research Foundation)

Germany offers a diverse and dynamic research environment supported by a wide range of funding schemes, including those for international collaboration. In this seminar, we will introduce the structure of the German research landscape and present DFG’s major funding opportunities for postdoctoral researchers, early‑career scholars, and those aiming for professorship positions.

The Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) is the largest self-governing funding organization for basic research in Germany. The DFG promotes the advancement of science and the humanities by funding research projects and facilitating cooperation among researchers

The registration deadline for OIST-Keio Showcase Talk Series Vol. 9 - Proteins in Focus: Cryo-EM and Structural Frontiers is January 20, 2026.

Speaker: Professor, Deputy Director Yeong-Cherng Liang, Department of Physics | QFort, National Cheng Kung University, Taiwan

In collaboration with leading venture capital firms, OIST Innovation offers startups and entrepreneurial researchers or students the opportunity to connect directly with venture capitalists for one-on-one mentoring and discussion. Each round begins with an open seminar-style introduction, where participants can learn about the VC firm's investment focus and characteristics. This is followed by private, closed-door mentoring sessions between startups/researchers/students and the VC representatives.

The featured VC for this round is D4V (Design for Ventures)

This training course will show you how to make best use of the high-performance computing resources at OIST. In the first session we show you how computing clusters are organized and introduce the fundamental concepts of parallel computing.

TSVP Talk Language: English (no interpretation). Target audience: General audience / everyone at OIST and beyond. Freely accessible to all OIST members and guests without registration (also via Zoom).

Speaker:Julius Lohmann JSPS International Research Fellow, Institute of Science Tokyo Title: Dynamic inverse problems regularized with Wasserstein-1 transport Julius Lohmann JSPS International Research Fellow, Institute of Science Tokyo

Abstract: The (classical, balanced) Wasserstein-p distance can be used as a measure of how close a source and sink mass distribution (with equal mass) are. In recent years, the Wasserstein-2 distance has been employed in the temporal regularization of dynamic inverse problems. The so-called Benamou–Brenier formula states that it can be written as the square root of the performed physical work through the transport from the source to the sink. In my talk, I will instead focus on dynamic inverse problems regularized with Wasserstein-1 transport. The Wasserstein-1 distance can be interpreted as the optimal transport cost with respect to the Euclidean distance: it equals infπ R |x−y|dπ(x, y), where measure element dπ(x, y) indicates the (infinitesimal) amount of mass moving from location x to y. I will explain a novel dynamic inverse problem on time-parameterized curves in the induced Wasserstein-1 (metric) space. It is a natural extension of static sparse optimization problems such as lasso or TV regularization. One essential difference to classical regularization with Wasserstein-2 transport is that it allows for discontinuous decision variables (realized as BV curves). Despite this weak regularity requirement and the non-differentiability of the cost function (x, y) 7→ |x − y|, it is possible to prove the existence of a sparse solution and its characterization. I will present this result. Further, I will detail an adaption of the fully-corrective generalized conditional gradient method to the problem and highlight a natural discretization approach. Finally, I will show some numerical examples. Joint work with: Marcello Carioni

Zoom Registration

The Provost Lecture Series 21

QG Seminar Speaker: Martin Cederwall (Chalmers University of Technology, Sweden)

Title: Review of Extended Geometry

Title: Normalized solutions and limit profiles of the Gross-Pitaevskii-Poisson equation

Speaker: Prof. Vitaly Moroz (Swansea University)

Prof. Marina Freitag , Professor of Energy/Royal Society University Research Fellow (URF), School of Natural and Environmental Sciences, Newcastle University

National holiday

旅費相談会を開催いたします。

December 23th (Tue) @A151 Center Bldg. 15:00-16:00

ISLAND SONGS

タイトル ： ちょうちょの「目玉もよう」のひみつ

アブストラクト： ちょうちょの⽻にあるきれいな⽬⽟もようは、どうしてあるんだろう？ それは、ちょうちょが敵から⾝をまもって⽣き残るために、すごく⼤切なもの。このもようがどうやって出来て、ちょうちょを助けているのか、その進化のひみつをのぞいてみよう︕

対象10歳以上

[Stress Management Seminar | Mechanisms of Trauma and Self-Management]

Lecturer: Koji Yamamoto (Director, Denenchofu Counseling Office) Date: Friday, December 19, 2025, 14:00–16:00 Venue: Center Building C209 Form at: Hybrid (Zoom & in-person) / Simultaneous interpretation (Japanese–English) Zoom URL: https://oist.zoom.us/j/93859422258?pwd=2fEQK9N7NkbTajrINTapXMyjCVmOH1.1 In this lecture, we will explore stress reactions that arise in daily life and interpersonal relationships, explained clearly from the perspective of a therapist with extensive clinical experience. We will also introduce concrete self-management strategies to help you regulate your own state and navigate challenging situations more effectively.

In addition, we will examine how trauma affects the mind and body, outlining its basic mechanisms. Together with participants, we will consider practical hints for fostering personal resilience.

Recommended for those who:

Want to understand the basics of stress reactions and trauma Wish to gain insights for better managing their emotional and physical well-being Are interested in concrete self-management techniques Seek guidance on strengthening mental resilience

【ストレスマネジメントセミナー｜トラウマのメカニズムとセルフマネジメント】

講師：山本 貢司（田園調布カウンセリングオフィス所長） 日時： 2025年12月19日（金）14:00–16:00 場所： センター棟 C209 開催形式： ハイブリッド（Zoom・会場）／日英同時通訳あり

Zoom URL: https://oist.zoom.us/j/93859422258?pwd=2fEQK9N7NkbTajrINTapXMyjCVmOH1.1 この講演では、日常生活や対人関係で生じるストレス反応について、臨床経験豊富なセラピストの視点からわかりやすく解説します。あわせて、自分の状態を整えるセルフマネジメントの具体的な方法も紹介します。

さらに、トラウマが心身に及ぼす影響やそのメカニズムをひも解き、レジリエンスを育てるためのヒントを参加者の皆さまと一緒に探っていきます。

以下のような方におすすめです：

ストレス反応やトラウマの基礎を理解したい 自分の心身の状態を整える手がかりを得たい セルフマネジメントの具体的な方法を知りたい メンタルのレジリエンスを高めるヒントを探している

Speaker: France Rose(University of Bonn)

Title: Animal behavior analysis enabled by unsupervised deep learning

Prof. Sushma Nagaraja Grellscheid, Professor of Genomics, University of Bergen (Norway) & Durham University (UK). Seminar on biomolecular condensates and FlickerPRINT, a high-throughput flicker spectroscopy approach to probe condensate mechanics in living cells. Language: English, no interpretation.

Title: Unbounded viscosity solutions of Hamilton-Jacobi equations with mechanical Hamiltonian in Wasserstein space

Speaker: Dr. Othmane Jerhaoui (IRMAR - INSA Rennes)

Japan as an Asian superpower – Rise and fall 1912-1945

Lecture by Prof. Till Weber, OIST 16th December, 2025

Child-rearing Support Community - Collaboration Event with CDC Teachers!!

Dr Marion Cromb, Post-doctoral experimental researcher, University of Nottingham

A talk by Moritz Piening

Mathematics, Technische Universität Berlin