Derivator Six Functor Formalisms -- Definition and Construction I
Abstract
A theory of a derivator version of six-functor-formalisms is developed, using an extension of the notion of fibered multiderivator due to the author. Using the language of (op)fibrations of 2-multicategories this has (like a usual fibered multiderivator) a very neat definition. This definition not only encodes all compatibilities among the six functors but also their interplay with homotopy Kan extensions. One could say: a nine-functor-formalism. This is essential for dealing with (co)descent questions. Finally, it is shown that every fibered multiderivator (for example encoding any kind of derived four-functor formalism occurring in nature) satisfying base-change and projection formula formally gives rise to such derivator six-functor-formalism in which , i.e. a derivator Grothendieck context.
Cite
@article{arxiv.1701.02152,
title = {Derivator Six Functor Formalisms -- Definition and Construction I},
author = {Fritz Hörmann},
journal= {arXiv preprint arXiv:1701.02152},
year = {2021}
}
Comments
arXiv admin note: text overlap with arXiv:1603.02146