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The Hodge realization functor on the derived category of relative motives

Abstract : We give, for a complex algebraic variety S, a Hodge realization functor F Hdg S from the (un-bounded) derived category of constructible motives DAc(S) over S to the (undounded) derived category D(M HM (S)) of algebraic mixed Hodge modules over S. Moreover, for f : T → S a morphism of complex quasi-projective algebraic varieties, F Hdg − commutes with the four operations f * , f * , f ! , f ! on DAc(−) and D(M HM (−)), making in particular the Hodge realization functor a morphism of 2-functor on the category of complex quasi-projective algebraic varieties which for a given S sends DAc(S) to D(M HM (S)), moreover F Hdg S commutes with tensor product. We also give an algebraic and analytic Gauss-Manin realization functor from which we obtain a base change theorem for algebraic De Rham cohomology and for all smooth morphisms a relative version of the comparaison theorem of Grothendieck between the algebraic De Rahm cohomology and the analytic De Rahm cohomology.
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https://hal.archives-ouvertes.fr/hal-02888285
Contributor : Johann Bouali <>
Submitted on : Thursday, July 2, 2020 - 9:48:15 PM
Last modification on : Wednesday, July 8, 2020 - 3:40:19 AM
Long-term archiving on: : Thursday, September 24, 2020 - 6:19:13 AM

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  • HAL Id : hal-02888285, version 1

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Johann Bouali. The Hodge realization functor on the derived category of relative motives. 2020. ⟨hal-02888285v1⟩

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