Talk:Étale cohomology

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Note on the lower case redirect - I thought there was a possible bug, meaning that lower case e-acute wasn't automatically sent to this Étale cohomology page. Well, I encountered a problem with this, yesterday.

Charles Matthews 11:04, 14 Dec 2003 (UTC)

[edit] where is the name of grothendieck in the very beginning?

well, before editting the page, i wanted to inform that i want to chamge the first sentence to the following:

In mathematics, the étale cohomology theory of algebraic geometry is a refined construction of homological algebra, introduced by Alexander Grothendieck as a cohomological tool to attack the Weil conjectures.

[edit] why etale?

Hi, I'm sorry if the information is in the article, but why is the concept called etale? I think this means spread in French. Thanks. 131.111.216.28 (talk) 23:08, 13 March 2008 (UTC)

I think it comes from the fact that an etale map is analogous to a local diffeomorphism, so if you draw a curve X etale over Y, this looks pretty much spread out... Jakob.scholbach (talk) 11:49, 14 March 2008 (UTC)

See etale morphism for the terminology. Jakob.scholbach (talk) 11:49, 14 March 2008 (UTC)