The aim of this workshop is to bring together leading researchers and dynamic experts from the two universalities of arithmetic geometry -- the cohomological motivic theory and homotopical anabelian geometry -- to foster new interactions between these two areas, that go beyond the elementary.

The program will consist of survey lectures, research talks presenting recent advances, and Bourbaki-style expository presentations on some of the most recent developments in the fields.

Keywords: stable and unstable motivic homotopy; étale topological type; anabelian geometry; periods, polylog, and multiple zeta values; Deligne-Ihara algebra; weight structures and weight theory; Tannaka formalism.

Organizers: B. Collas (RIMS Kyoto University, JP), T. Holzschuh (IHES, FR), S. Kelly (The University of Tokyo, JP)

※ This event is part of the special year ``Arithmetic, Homotopy, and Geometry 2027-28''.