The Stacks project

Making sure we have a proof environment for every statement

Etale Cohomology: More fixes

	Try to be more consistent with notation on cohomology groups
	Compare cohomology on big and small sites
	Invariance under change of partial universe
	Fix proof of theorem cohomology quasi-coherent sheaf
	Restate Hilbert 90
	Add constant group scheme to chapter on groupoids
	Add lemma on change big site to chapter on cohomology on sites
	Fix proof of change big site lemma in chapter on topologies

Etale Cohomology: Restate theorem on cohomology quasi-coherent sheaves

Etale Cohomology: Introducing tau-sites

	There seems to be no way around actually introducing the
	tau-sites in the chapter on etale cohomology. As a result we
	noticed something missing in the chapter on topologies, namely
	the statement that the topologies on the big (absolute)
	tau-sites are induced from the corresponding toplogies on the
	category of all schemes. We added this also.

Tags: Added new tags

	Mainly new tags for lemmas/propositions/theorems in the chapter
	on etale cohomology.

Etale Cohomology: White space changes only

Etale COhomology: More edits

	Coding style...

Etale COhomology: More edits

	Coding style...

Etale Cohomology: Lots of edits

	One of the problems is that the coding style is completely
	different and nonuniform. Another is that there is a lot of
	material for which it will not be possible to find proofs
	internally in the stacks project for a long time. Perhaps we
	need to introduce a way of indicating this in the document.

	A better solution is perhaps to add only those parts to the
	actual stacks book published on the web which mesh well with
	the stacks project.

CONTRIBUTORS: Added Min Lee

	See previous commit

Etale Cohomology: Lecture notes from a course

	Taken by Thibaut Pugin, Zachary Maddock and Min Lee (in reverse
	alphabetical ordering).

	Fall 2009 Mathematics G6289 section 001
	ALGEBRAIC GEOMETRY

	The topic was etale cohomology of schemes. The intent was to
	work through the chapters [Arcata] and [Rapport] of SGA 4 1/2.
	The class met Tuesday and Thursday from 11-12:15 in Room 307 of
	the Mathematics Building.