Groupes fondamentaux motiviques de Tate mixte |
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Authors: | Pierre Deligne |
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Institution: | School of Mathematics, Institute for Advanced Study, Princeton, NJ 08540, USA; Department of Mathematics, Brown University, Providence, RI 02912, USA |
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Abstract: | We define the category of mixed Tate motives over the ring of S-integers of a number field. We define the motivic fundamental group (made unipotent) of a unirational variety over a number field. We apply this to the study of the motivic fundamental group of the projective line punctured at zero, infinity and all Nth roots of unity. |
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