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JBorger
  • Member for 12 years, 7 months
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42 votes
1 answer
3k views

Possible formal smoothness mistake in EGA

27 votes
5 answers
9k views

What is the history of the name "Chinese remainder theorem"?

21 votes
2 answers
1k views

When do two elliptic curves have equivalent small etale toposes?

20 votes
3 answers
2k views

Is every integral epimorphism of commutative rings surjective?

16 votes
2 answers
1k views

What are the merits of the different finiteness conditions on quasi-coherent sheaves?

15 votes
4 answers
1k views

Introductory text for the non-arithmetic moduli of elliptic curves

15 votes
2 answers
738 views

Can the failure of the multiplicativity of Euler factors at bad primes be corrected?

12 votes
3 answers
408 views

Are there examples where one proves something about the functor represented by an object using the functor it corepresents?

12 votes
2 answers
845 views

What should the definition of "Yoneda property" be?

12 votes
0 answers
1k views

Are there analogues of Beilinson's conjectures for motives with coefficients?

11 votes
1 answer
738 views

Is there a direct proof that affine schemes are fppf quasi-compact?

7 votes
1 answer
175 views

Does the following class of functions have a name?

5 votes
1 answer
682 views

Are the Schur functions the minimal basis of the ring of symmetric functions with the following properties?