Events

The workshop "Valentia Geometrica 2026" is scheduled for 20-23 April 2026, and the plan is to cover topics on Geometric Analysis in a broad sense, as a crossroad between Differential Geometry, Partial Differential Equations, Calculus of Variations, Geometric Measure Theory, Metric Geometry,... Speakers: Virginia Agostiniani (Trento) Sigurd Angenent (Wisconsin) Giovanni Bellettini (Siena) Maria Colombo (EPFL) Panagiota Daskalopoulos (Columbia) Manuel del Pino (Bath) Guido De Philippis (NYU Courant) Michael Eichmair (Wien) Nicola Gigli (SISSA) Robert Haslhofer (Toronto) Andrea Malchiodi (SNS Pisa) Rafe Mazzeo (Stanford) Andrea Mondino (Oxford) Aaron Naber (Princeton) Felix Schulze (Warwick) Natasa Sesum (Rutgers) Carlo Sinestrari (Tor Vergata) Peter M. Topping (Warwick) Lu Wang (Yale) Ben Weinkove (Northwestern)​ Organizer: Esther Cabezas-Rivas, supported by CIAICO/2023/035.

Date: April 15, 2026 (Wednesday) at 4PM (UK time) Speaker: Prof. Harald Andrés Helfgott, Paris City University, France Topic: Growth, expansion and escape in groups Prof. Harald Helfgott is a leading mathematician who made fundamental contribution to number theory, group theory, and additive combinatorics. He is widely known for his proof of the ternary Goldbach conjecture, as well as for foundational contributions to the study of growth and expansion phenomena in groups. In this talk, he will discuss growth and expansion in groups, including progress toward the celebrated Babai conjecture on the diameters of finite simple groups. See the blog announcement of this talk for more details. Link to join: At the scheduled time, join the talk here: https://teams.microsoft.com/meet/35594396682962?p=uo1lOtTMRZFaO6BjEp No registration is required. Alternatively, you can open Teams -> Calendar -> Meet now -> Join with an ID, and then enter Meeting ID: 355 943 966 829 62 and Passcode: nx6dB9Dz

We are pleased to announce the twentieth edition of the annual GAP (Geometry and Physics — Séminaire itinérant) conference and summer school, which will take place at RIMS, Kyoto, Japan, from April 13 to 24, 2026. GAP XX will be organized as part of the RIMS Research Project 2026–2027 on "Higher Structures in Geometry and Mathematical Physics." The program will span two weeks: April 13–17, 2026 — School on Moduli Spaces in Various Flavors of Geometry (mini-courses); April 20–24, 2026 — Workshop on Moduli Spaces in Various Flavors of Geometry. Further details, including the list of speakers and registration information, are available on the conference website: https://sites.google.com/view/gap2026/home

The 4th International Mathematics and Statistics Student Research Symposium (IMSSRS) will be held virtually on Saturday, April 11, 2026. IMSSRS is a free conference welcoming high school, community college, undergraduate, and graduate students to present research in the mathematical sciences, explore current research topics, and connect with peers worldwide. This year’s program features a plenary by Dr. Katherine B. Ensor (Rice University) titled “The Critical Role of Statistical Thinking, Yesterday, Today, and Tomorrow.” The program also includes a panel discussion, “Life After College,” on career paths for mathematical science graduates, with audience Q&A. The abstract submission deadline is March 27, 2026. While presenters must be students, all are welcome to attend. Please visit the event website for details.

The International Conference of Young Algebraists in Thailand (ICYAT) is a series of conferences for mathematicians and researchers in the field of algebra and related topics.  The conference was started by Tiang Poomsa-ard and his group in 1996 at Khon Kaen University, Thailand, to provide a platform for young algebraists, researchers, and college students across Thailand to come together, share their research findings, and exchange ideas with others. Additionally, this conference allows participants to network with their peers, stay current on relevant topics, and have in-depth conversations with international researchers.

The First International Conference on Advances in Operator Theory and Applications (ICAOTA’2026) is a prestigious scientific event that will convene leading experts, early-career researchers, and professionals from across the globe to discuss recent advances in operator theory and its far-reaching applications in mathematics, physics, and engineering.

The International Conference on Advances in Operator Theory and Applications (ICAOTA’2026) seeks to unite researchers across diverse areas of modern mathematics, including operator theory, partial differential equations, numerical analysis, and dynamical systems, with a particular focus on their applications to real-world problems. A central theme of the conference will be exploring the connections between classical mathematical approaches and emerging interdisciplinary fields such as artificial intelligence and fractional modeling, fostering collaboration that bridges theoretical innovation with practical solutions. By bringing together experts from both pure and applied mathematics, the event aims to highlight how advanced mathematical frameworks can address complex challenges in science, engineering, and technology.

Plenary talks in the morning and four afternoon sections: "Analysis and Partial Differential Equations", "Differential Geometry", "Mathematical Physics", and "Riemann surfaces, abelian varieties, and moduli spaces".

Date: March 4, 2026 (Wednesday) at 4PM (UK time) Speaker: Prof. Assaf Naor, Princeton University, USA Topic: Sparsest cut About the Talk: Prof. Assaf Naor is a world-leading mathematician known for his groundbreaking contributions at the interface of metric geometry, analysis, and approximation algorithms. His work has earned numerous major distinctions, including the Nemmers Prize in Mathematics, the Ostrowski Prize, and the Bôcher Memorial Prize. In this talk, he will discuss the Sparsest Cut problem, explain its significance in algorithm design, and present recent algorithm for its efficient approximation, which is a culmination of decades of work. Visit https://th21.le.ac.uk/next-talks/ for the link to join Alternatively, you can open Teams -> Calendar -> Meet now -> Join with an ID, and then enter Meeting ID: 321 254 275 995 46, Passcode: jd9na63y

Theorems of the 21st Century is an online seminar series presenting accessible expository talks on some of the most significant mathematical theorems of recent decades. All seminars start at 16:00 (UK time). Further details and the link to join are available on the seminar website https://th21.le.ac.uk/next-talks/