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gualterio
  • Member for 4 years, 1 month
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185 votes
18 answers
12k views

Great graduate courses that went online recently

  • 13.2k
52 votes
11 answers
12k views

Why is it useful to study vector bundles?

43 votes
3 answers
4k views

"Cute" applications of the étale fundamental group

  • 6,158
38 votes
10 answers
5k views

Presenting a paper: Do's and Don'ts?

25 votes
8 answers
4k views

What is the point of reading classics over modern treatments?

20 votes
17 answers
4k views

Which great mathematicians were also historians of mathematics?

16 votes
5 answers
4k views

Projective objects in the category of chain complexes

  • 163
12 votes
1 answer
1k views

Mitchell's embedding theorem

  • 1,835
7 votes
0 answers
245 views

A diagram in the proof of Theorem 2.5.5 of 'Cohomology of Number Fields' and the Tate Spectral Sequence

  • 951
6 votes
0 answers
357 views

Galois cohomology with coefficients in the unit group of a cyclotomic field

  • 339
5 votes
1 answer
295 views

How hard is it to find the first layer of this basic $\mathbb{Z}_p$-extension?

3 votes
1 answer
557 views

Long exact sequence of free modules and rank inequality

  • 31
1 vote
0 answers
104 views

Euler systems over abelian number fields [duplicate]

  • 99