Descent theory has been created by A. Grothendieck. You can read chapters VI and VII of SGA I (the retyped version may be found here), if you are interested in his early work on the subject and if you read French. Some pages related to descent theory: from Bangor group , Alsani's categories and descent page , Ross Street's advanced article Combinatorial aspects of descent theory .
Zoran Skoda
Last modified: Thu May 25 17:28:19 CEST 2006