Activities - Conferences & Seminars

Conferences, workshops, and seminars organized by the members of the AHGT network.

The AHGT Seminar

An hybrid seminar that takes place between LPP Lille and RIMS Kyoto on a monthly basis by Zoom and which covers the three topics of the AHGT project. Contact the local organizer of your choice in case of interest.

RIMS Zoom Hybrid Org.: B. Collas (RIMS, JP), Y. Hoshi (RIMS, JP), K. Sawada (RIMS Kyoto), P. Dèbes (Lille, FR), A. Mézard (ENS, FR).

Seminars of the Network

RIMS Number Theory / Arithmetic Geometry Seminar (local)
Lille Arithmetic and Topology Seminars
Osaka Number theory Seminar
TIT Arithmetic and Geometry Seminar
Sorbonne-X ``Variétés Rationnelles'' Seminar
Sorbonne Paris Nord ``Géométrie Arithmétique et Motivique'' Seminar
ENS DMA ``Raconte-moi...'' Algebra and Geometry Seminar

Next coming talks…

Apr 1, 2024	The Tame Approximation Problem for nonsolvable groups by Elyes Boughattas, University of Bath, UK.
May 13, 2024	Double shuffle torsor of cyclotomic multiple zeta values and stabilizers of de Rham and Betti coproducts by Khalef Yaddaden, Nagoya University, Japan.
Jun 3, 2024	Title to be announced by Christopher Rasmussen, Wesleyan University, USA.

Page of the AHGT seminar

AHGT Workshops and Conferences

Algebraic & Arithmetic Geometry 2024. 6th Kyoto+ Workshop

Nanjing Zoom Hybrid Summer, 2024 Org.: Y. Yang (RIMS) et al.

Webpage of the workshop (to be published)

[MFO24] Anabelian Geometry and Representations of Fundamental Groups

Anabelian Geometry and Representations of Fundamental Groups. Oberwolfach workshop

MFO-RIMS Sep. 29-Oct. 4, 2024 Org.: A. Cadoret, F. Pop, J. Stix, A.. Topaz

Webpage of the workshop

[MFO-RIMS23] Arithmetic Homotopy & Galois Theory

Arithmetic Homotopy & Galois Theory. Oberwolfach-RIMS tandem workshop

MFO-RIMS Sep. 24-29, 2023 Org.: B. Collas, P. Dèbes, Y. Hoshi, A. Mézard

Webpage of the workshop

[AHGT] Arithmetic & Geometry-Kyoto-Nanjing 2023

Algebraic & Arithmetic Geometry 2023. 5th Kyoto+ Workshop

Nanjing Zoom Hybrid Aug. 24-28, 2023 Org.: Y. Hoshi (RIMS), Z. Hu (Nanjing), P. Huang (Heidelberg), Y. Yang (RIMS), R. Zong (Nanjing)

Webpage of the workshop

Arithmetic & Homotopic Galois Theory 2023

ENS-RIMS Zoom Hybrid Mar. 20-24, 2023 Org.: B. Collas, P. Dèbes, Y. Hoshi, A. Mézard

Webpage of the workshop

AHGT Focus Workshops & Lecture Series

Focus events to introduce and report on the latest topics and progress of the arithmetic homotopy and Galois theory program.

[AHGT] Lepage AHGT RIMS lecture serie - anabelian geometry and Berkovich spaces 2024

Lecture on ``Berkovich methods for anabelian reconstructions and Resolution of Nonsingularities''

RIMS, Japan April 8, 10 and 12, 2024 By E. Lepage (IMJ Paris, France)

Schedule & Program

Anabelian Geometry in Tokyo 2024

Tokyo, Japan Mar. 11-22, 2024 Org.: Y. Taguchi, T. Murotani, N. Yamaguchi (Tokyo Inst. Tech.)

Workshop Poster Webpage of the workshop

Workshop on Model theory of valued fields and applications.

Lille Feb. 19-21, 2024 Org.: R. Cluckers (CNRS-Lille), A. Forey (CNRS-Lille), Y. Hendel (KU Leuven)

Webpage of the workshop

Lille Arithmetic & Homotopic Galois Theory Day 2023

Lille, France Oct. 10, 2023 Org.: P. Dèbes, B. Fresse

Workshop Poster Schedule & Program

Arithmetic Seminar Day in Toyonaka 2023

Osaka - Toyonaka Mar. 13, 2023 Org.: H. Nakamura

Webpage of the workshop

Young Researchers Workshops

One of the goals of the AHGT IRN is the coordination and support of independant activities for early-career researchers, i.e. Master students, PhD students and postdoctoral researchers, in terms of short and topic-focus oriented workshops and seminars.

Atelier de Géométrie Arithmétique - 数論幾何学のアトリエ

[Atelier23] Atelier de Géométrie Arithmétique 2023 - Local-global principles and patching method

Around the Grothendieck-Teichmüller group

Paris & RIMS Kyoto [Bridge] Feb. 27, 2024 Org.: M. Ferreira-Filoramo, S. Philip & N. Yamaguchi

Webpage of the workshop

Local-global principles and the patching method

Paris & RIMS Kyoto [Bridge] June 27, 2023 Org.: E. Boughattas, S. Philip & N. Yamaguchi

Webpage of the workshop

The AHGT Ateliers are one-day events organized by and for early-career researchers to discover and get a working understanding of both fundamental and hot topics in Arithmetic and Homotopic Galois Theory.
Talks are distributed in advance among participants, who also propose and vote the next event topic.

Seminars for early-career researchers

Some occasional events organized by the nodes of the network:

Rational Points and Geometry at RIMS Kyoto (Aug. 10-23, 2023; 3x 2hrs) by H. Liu, IMJ-PRG.
Talk 1: Cadoret-Tamagawa’s uniform open image theorem; Talk 2: Lawrence-Venkatesh’s p-adic approach to Mordell’s conjecture; Talk 3: Fourier-Mukai transform for D-modules on complex tori.

Ookayama Youth Seminar in Algebra - 大岡山代数系若手セミナー

The Ookayama Youth Seminar in Algebra is a seminar for Mx students, and PhD and early career postdoctoral researchers of Tokyo Institute of Technology and its surrounding. The seminar takes place every two-weeks in Tokyo Institute of Technology and is organized by Slack.
Please contact the organizers T. Murotani or N. Yamaguchi [Contact].

当セミナーは東京工業大学周辺の修士、博士の学生及び若手研究者を中心とした代数系のセミナーとなっております。二週に一度の頻度で開催しており、セミナー会場として東京工業大学の部屋を使用させていただいております。当セミナーはオフラインのみとなっておりますが、会場に来られる方でしたらどなたでもご参加いただけますので、ご興味のある方は主催者の室谷さんまたは山口[Contact]までご連絡ください。