On Albanese and Picard 1-motives with G(a)-factors

摘要

We construct Laumon-1-motives Pic(a)(+) (X), Alb(a)(-) (X), Pic(a)(-) (X), and Alb(a)(+) (X) associated to an algebraic variety X with complete singular locus, whose associated etale (Deligne-)1-motives coincide with Picard and Albanese motives constructed by Barbieri Viale and Srinivas.