User user1092847 - MathOverflow

user1092847

Member for 5 years
Last seen more than 1 year ago

15 Answers

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14 votes

Recovering an abelian category from the Ext of its simple objects

answered Apr 30, 2021 at 20:39

14 votes

Is pure mathematics useful outside of mathematics itself?

answered May 11, 2021 at 5:52

10 votes

What is the cotangent complex good for?

answered Sep 20, 2020 at 21:42

9 votes

Could a motivic spectrum have a "zeta function"?

answered Jan 15, 2020 at 16:29

8 votes

Why do we study complex orientable cohomology theories

answered Jan 16, 2020 at 18:17

5 votes

Involution map, and induced morphism in K-theory

answered Jul 20, 2022 at 22:18

4 votes

Accepted

Is there an elementary reason that this colocalisation map of complexes is a quasi-isomorphism?

answered Oct 24, 2022 at 20:13

4 votes

Exact formula for $\chi(X, \, S^n \Omega^1_X)$

answered Jul 16, 2021 at 18:13

3 votes

Accepted

Rational homotopy type of rational mapping spaces

answered Jul 29, 2021 at 18:32

3 votes

The minimal complexes and the direct limit

answered Jun 12, 2021 at 3:04

3 votes

Accepted

Checking formality of a perfect complex Zariski-locally

answered Jun 16, 2021 at 3:34

2 votes

Accepted

Antisymmetric product of complexes

answered Jun 24, 2021 at 4:22

2 votes

Motivic integrals and linear equivalence

answered May 2, 2022 at 14:35

1 vote

When is a sheaf $\mathcal{L}_1 \subset \mathcal{F} \subset \mathcal{L}_2$ sandwiched between two line bundles also a line bundle?

answered Mar 16, 2022 at 19:11

1 vote

A three-line proof of global class field theory?

answered Apr 27, 2022 at 2:19