The Stacks project

Typo in topology

Thanks to Kazuki Masugi
https://stacks.math.columbia.edu/tag/004R#comment-3378

Invisible changes

Part of neurotically trying to uniformize use of latex commands in math
mode.

Typos in algebra.tex and topology.tex

Thanks to Wei Xu
http://stacks.math.columbia.edu/tag/0581#comment-624
http://stacks.math.columbia.edu/tag/00CX#comment-625
http://stacks.math.columbia.edu/tag/00E5#comment-626
http://stacks.math.columbia.edu/tag/00CZ#comment-627
http://stacks.math.columbia.edu/tag/0406#comment-628
http://stacks.math.columbia.edu/tag/0377#comment-629
http://stacks.math.columbia.edu/tag/07VB#comment-630
http://stacks.math.columbia.edu/tag/004Z#comment-631
http://stacks.math.columbia.edu/tag/037A#comment-632

Tags: Added new tags

Dual obstruction theory

	Construction of the element in H^1(K \otimes NL) as explained on
	the blog here:

	http://math.columbia.edu/~dejong/wordpress/?p=2514

	Next, we turn this into a map and apply the previous results.
	This we should be able to use for lots of cases, but it will
	certainly not cover all cases.

Question 04PZ

Hi,

I've attached what seems to be an affirmative answer to the question posed in
Remark 04PZ in the case of a finite extension. I have no idea about the
general case, but as the remark explicitly mentions the finite case, I
thought it was still worth writing it down.

Best,
Philipp