#
*Pursuing Stacks*

* Pursuing Stacks* (French:

*À la Poursuite des Champs*) is an influential 1983 mathematical manuscript by Alexander Grothendieck. The word "stack" refers to a possible generalization of scheme, a central object of study in algebraic geometry.

Among the concepts introduced in the manuscript are derivators and test categories.

Some parts of the manuscript were later developed by:

- Maltsiniotis's
*La Théorie de l'homotopie de Grothendieck*(*Grothendieck's Homotopy Theory*): http://www.math.jussieu.fr/~maltsin/ps/prstnew.pdf - Cisinski's (augmented version of his) thesis
*Les Préfaisceaux comme modèles des types d'homotopie*(*Presheaves as Models for Homotopy Types*): http://www.math.univ-toulouse.fr/~dcisinsk/ast.pdf

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## External links

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