2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/136993Let k be a number field, and let S be a finite set of k-rational points of P^1. We relate the Deligne-Goncharov contruction of the motivic fundamental group of X:=P^1_k- S to the Tannaka group scheme of the category of mixed Tate motives over X.Algebraic GeometryK-Theory and Homology14C25, 19E15text