5
votes
Accepted
Category of elements and Quillen adjunction
One can do even better than a Quillen adjunction: Theorem 3.8 in A model structure for Grothendieck fibrations establishes a Quillen equivalence between the projective model structure on presheaves of ...
- 37.2k
4
votes
Accepted
Extending Tannakian "dictionary" to gerbes
The following is a translation of Saavedra 1972, III, 3.3.3, p.205.
Let $\omega\colon\mathsf{C}^{\prime}\rightarrow\mathsf{C}$ be a
morphism of tannakian categories over a field $k$, bound by a ...
- 531
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