Motifs in Derived Algebraic Geometry
arXiv:1512.02740
Abstract
We formalize the concept of sheaves of sets on a model site by considering variables thereof, or motifs, and we construct functorially defined derived algebraic stacks from them, thereby eliminating the necessity to choose derived extensions.
23 pages, fpqc topology replaced by etale topology throughout, Lemma 3.2.1.6 is completely rewritten, occasional comments are added for clarity. The heart of the paper is otherwise the same