List questions from category-theory

Published on 20 Apr 2018 - 1:12

61

Views

Category of $G\times G$-modules

Published on 25 Mar 2026 - 3:02

198

Views

Strong homotopy equivalence on classifying spaces via weak homotopy equivalence on classifying topoi

Published on 20 Apr 2018 - 20:09

38

Views

Fibres of the target map related (homeomorphic) to the fibres of the source map in a topological groupoid?

Published on 20 Apr 2018 - 20:26

1k

Views

Change of rings for $\mathrm{Ext}$ and $\mathrm{Tor}$ functors.

Published on 21 Apr 2018 - 14:40

44

Views

Question concerning functors which are equivalences

Published on 22 Mar 2026 - 16:54

160

Views

Universal Property of an Embedding

Published on 21 Apr 2018 - 22:26

52

Views

Is there a universal connection between localizable measure $μ$ and action $act$?

Published on 22 Apr 2018 - 11:18

291

Views

Ext functor in derived categories

Published on 17 Mar 2026 - 3:18

103

Views

Inverse limit of closed intervals which is open?

Published on 25 Mar 2026 - 0:01

1.6k

Views

Examples of interesting rings to study during an undergraduate course in non-commutative rings.

Published on 26 Mar 2026 - 6:06

312

Views

model structure on the arrow category

Published on 25 Mar 2026 - 21:20

428

Views

Projective objects in a presheaf topos is a retract of representables

Published on 25 Mar 2026 - 9:37

122

Views

Pullback of Boolean algebras

Published on 24 Apr 2018 - 9:53

802

Views

The $2$-category of monoids

Published on 19 Mar 2026 - 16:55

List Question

What is a Random Variable in the formulation of McCullagh's "What is a Statistical Model?"

Category of $G\times G$-modules

Strong homotopy equivalence on classifying spaces via weak homotopy equivalence on classifying topoi

Fibres of the target map related (homeomorphic) to the fibres of the source map in a topological groupoid?

Change of rings for $\mathrm{Ext}$ and $\mathrm{Tor}$ functors.

Question concerning functors which are equivalences

Universal Property of an Embedding

Is there a universal connection between localizable measure $μ$ and action $act$?

Ext functor in derived categories

Inverse limit of closed intervals which is open?

Examples of interesting rings to study during an undergraduate course in non-commutative rings.

model structure on the arrow category

Projective objects in a presheaf topos is a retract of representables

Pullback of Boolean algebras

The $2$-category of monoids

Trending Questions

Popular # Hahtags

Popular Questions