User Maxime Ramzi - MathOverflow

69 votes

4 answers

13k views

What's there to do in category theory?

asked Nov 29, 2017 at 21:16

26 votes

2 answers

4k views

Are there (enough) injectives in condensed abelian groups?

asked Feb 11, 2020 at 13:47

17 votes

5 answers

2k views

Locales as spaces of ideal/imaginary points

asked Jul 20, 2018 at 16:54

17 votes

1 answer

3k views

$\infty$-topoi versus condensed anima

asked Mar 29, 2021 at 18:34

10 votes

1 answer

482 views

Unstable Gabber rigidity

asked Feb 17 at 15:42

10 votes

2 answers

1k views

Reference for homotopy colimit = total complex

asked May 22, 2020 at 14:38

10 votes

0 answers

306 views

Two $\mathbb Z$-algebra structures on $\mathbb Z\otimes_{\mathbb S} R$

asked Jun 6, 2020 at 20:49

8 votes

2 answers

453 views

Relation between well-orderings of $\mathbb{R}$, and bases over $\mathbb{Q}$

asked Dec 28, 2016 at 9:22

8 votes

1 answer

445 views

Interesting "epimorphisms" of $E_\infty$-ring spectra

asked Aug 25, 2020 at 13:17

8 votes

1 answer

342 views

Non-finitely presented FP groups with cohomological dimension $2$

asked Feb 14, 2022 at 9:27

7 votes

0 answers

507 views

Unbounded derived Nakayama lemma

asked Jun 25, 2021 at 14:14

7 votes

2 answers

534 views

References about "monoidal fibrations" in $\infty$-category theory

asked Sep 12, 2020 at 10:56

6 votes

1 answer

356 views

An induction formula for spectral Mackey functors, and a fake proof

asked Oct 9, 2020 at 15:42

6 votes

1 answer

332 views

Perfect $\mathbb Z_\ell$-modules

asked Jul 10, 2020 at 19:25

6 votes

0 answers

162 views

$E_\infty$-maps of diagrams

asked Apr 8, 2020 at 8:21

6 votes

0 answers

335 views

Bigraded endomorphisms of the motivic sphere over a field

asked Feb 23, 2021 at 13:13

5 votes

2 answers

929 views

Potential counterexamples to Bass' trace conjecture

asked Mar 3, 2022 at 8:20

5 votes

0 answers

270 views

Two Hattori-Stallings trace questions

asked Nov 18, 2021 at 16:12

5 votes

0 answers

803 views

Oplax monoidal functors of $\infty$-categories

asked Apr 19, 2020 at 16:28

5 votes

0 answers

271 views

$\mathbb Z \otimes_\mathbb S \mathbb Z$ is concentrated in degree $0$ : mistake in the argument

asked Mar 24, 2020 at 15:00

4 votes

1 answer

311 views

Density of the max set of a non-differentiable function

asked Dec 27, 2016 at 20:08

4 votes

0 answers

180 views

Explicit separability idempotent for the center of a separable algebra

asked Feb 2, 2022 at 16:00

3 votes

2 answers

614 views

Relation between AC and the axiom of foundation

asked Dec 12, 2016 at 19:42

3 votes

1 answer

466 views

Frobenius algebras and traces of modules

asked Feb 3, 2021 at 22:33

2 votes

1 answer

304 views

Galois extensions of ring spectra and subextensions

asked Oct 23, 2020 at 16:40

2 votes

2 answers

384 views

Name for a certain type of cardinal

asked Mar 13, 2024 at 15:11

1 vote

0 answers

280 views

Units in group rings in SAGE

asked Apr 22, 2023 at 16:01

Stack Exchange Network

27 Questions

What's there to do in category theory?

Are there (enough) injectives in condensed abelian groups?

Locales as spaces of ideal/imaginary points

$\infty$-topoi versus condensed anima

Unstable Gabber rigidity

Reference for homotopy colimit = total complex

Two $\mathbb Z$-algebra structures on $\mathbb Z\otimes_{\mathbb S} R$

Relation between well-orderings of $\mathbb{R}$, and bases over $\mathbb{Q}$

Interesting "epimorphisms" of $E_\infty$-ring spectra

Non-finitely presented FP groups with cohomological dimension $2$

Unbounded derived Nakayama lemma

References about "monoidal fibrations" in $\infty$-category theory

An induction formula for spectral Mackey functors, and a fake proof

Perfect $\mathbb Z_\ell$-modules

$E_\infty$-maps of diagrams

Bigraded endomorphisms of the motivic sphere over a field

Potential counterexamples to Bass' trace conjecture

Two Hattori-Stallings trace questions

Oplax monoidal functors of $\infty$-categories

$\mathbb Z \otimes_\mathbb S \mathbb Z$ is concentrated in degree $0$ : mistake in the argument

Density of the max set of a non-differentiable function

Explicit separability idempotent for the center of a separable algebra

Relation between AC and the axiom of foundation

Frobenius algebras and traces of modules

Galois extensions of ring spectra and subextensions

Name for a certain type of cardinal

Units in group rings in SAGE