The initials ‘SGA I’ (or in more modern times ‘SGA1’) refer to the SGA seminar notes from Grothendieck‘s seminar (1960-61) at IHÉS, Bures-sur-Yvette (see at SGA for more).
These notes contain discussion/introduction of:
descent theory (chapter SGA I.6)
Last revised on May 9, 2023 at 10:18:04. See the history of this page for a list of all contributions to it.