User KotelKanim

19 votes

1 answer

2k views

When does the free loop space fibration split?

asked May 28, 2015 at 14:34

18 votes

1 answer

949 views

Steenrod squares as power operations vs. as cohomomology operations

asked Jul 1, 2017 at 9:25

16 votes

2 answers

2k views

Formal group law is a group object in ...?

asked Jul 13, 2014 at 8:07

14 votes

2 answers

1k views

Counterexamples for strengthening Whitehead's theorem?

asked Jul 5, 2015 at 13:23

13 votes

1 answer

855 views

Is an ordinary scheme in Borger's Absolute Geometry the same as a "scheme over 𝔽₁" with a map to Spec(ℤ)?

asked Aug 30, 2016 at 8:32

12 votes

2 answers

825 views

Constructing a "geometric" model structure on Cat by localizing the "categorical" model structure

asked Jul 20, 2014 at 8:01

11 votes

1 answer

322 views

real and complex vector spaces as topological categories

asked Feb 23, 2016 at 7:17

11 votes

2 answers

1k views

What are the reflective subcategories of the category of presentable categories?

asked Jul 29, 2018 at 8:06

10 votes

2 answers

390 views

Multiplicative structures on truncated Moore spectra

asked Feb 21, 2022 at 15:20

9 votes

1 answer

362 views

Are (complete) 2-Segal spaces the same as Span-enriched infinity categories?

asked Nov 17, 2019 at 9:28

9 votes

2 answers

495 views

One colored infinity operads via symmetric sequences?

asked Mar 17, 2018 at 15:05

8 votes

0 answers

318 views

When does p-profinite completion commutes with maps from a $p$-finite space?

asked Nov 15, 2017 at 18:41

8 votes

1 answer

451 views

Parametrized Dold-Kan correspondence?

asked Oct 22, 2015 at 10:38

8 votes

3 answers

1k views

Homological vs. cohomological dimension of a group/space

asked Jul 10, 2015 at 12:56

8 votes

2 answers

922 views

Must a finitely generated projective module over a group ring with vanishing coinvariants be trivial?

asked Jul 23, 2015 at 8:12

7 votes

0 answers

503 views

A definition of the homotopy colimit of a coherent diagram

asked Dec 30, 2015 at 13:21

7 votes

1 answer

217 views

Characterizing freely adjoining K-filtered colimits as K-continuous presheaves

asked Dec 18, 2017 at 9:26

6 votes

2 answers

415 views

"Joyal type" model structure for (n,1)-categories?

asked Jan 20, 2017 at 17:19

5 votes

0 answers

149 views

Counting square zero forms over finite fields

asked Sep 21, 2015 at 9:49

5 votes

1 answer

400 views

Does the right adjoint of the category of simplices functor is "homotopicaly inverse" to the category of simplices functor?

asked Aug 17, 2014 at 12:04

0 votes

0 answers

52 views

Criterion for projectively cofibrant diagrams? [duplicate]

asked Mar 18, 2015 at 8:33

Stack Exchange Network

21 Questions

When does the free loop space fibration split?

Steenrod squares as power operations vs. as cohomomology operations

Formal group law is a group object in ...?

Counterexamples for strengthening Whitehead's theorem?

Is an ordinary scheme in Borger's Absolute Geometry the same as a "scheme over 𝔽₁" with a map to Spec(ℤ)?

Constructing a "geometric" model structure on Cat by localizing the "categorical" model structure

real and complex vector spaces as topological categories

What are the reflective subcategories of the category of presentable categories?

Multiplicative structures on truncated Moore spectra

Are (complete) 2-Segal spaces the same as Span-enriched infinity categories?

One colored infinity operads via symmetric sequences?

When does p-profinite completion commutes with maps from a $p$-finite space?

Parametrized Dold-Kan correspondence?

Homological vs. cohomological dimension of a group/space

Must a finitely generated projective module over a group ring with vanishing coinvariants be trivial?

A definition of the homotopy colimit of a coherent diagram

Characterizing freely adjoining K-filtered colimits as K-continuous presheaves

"Joyal type" model structure for (n,1)-categories?

Counting square zero forms over finite fields

Does the right adjoint of the category of simplices functor is "homotopicaly inverse" to the category of simplices functor?

Criterion for projectively cofibrant diagrams? [duplicate]