Exposé Bourbaki 1176 : Progrès récents sur la conjecture de Zagier et le programme de Goncharov (d'après Goncharov, Rudenko, Gangl,...)

Abstract

This survey article is the written version of a talk given at the Bourbaki seminar in April 2021. We give an introduction to Zagier's conjecture on special values of Dedekind zeta functions, and its relation to $K$-theory of fields and the theory of motives. We survey recent progress on the conjecture and in particular the proof of the $n=4$ case of the conjecture by Goncharov and Rudenko.