Question

What's the point of maximal atlases?

score 197 · Answer 1 · 2026-04-14 09:44:56

197

Views

What's the point of maximal atlases?

Published on 14 Apr 2026 - 9:44

score 124 · Answer 2 · 2026-05-14 20:29:50

124

Views

Contravariant Yoneda lemma

Published on 14 May 2026 - 20:29

score 81 · Answer 3 · 2026-04-16 20:59:41

81

Views

Serre subcategory: quotient functor sends morphism to zero morphism iff image belongs to Serre subcategory

Published on 16 Apr 2026 - 20:59

score 110 · Answer 4 · 2026-04-18 19:34:47

110

Views

Compact objects in the category of $n$-categories

Published on 18 Apr 2026 - 19:34

score 144 · Answer 5 · 2026-04-14 21:46:10

144

Views

Prove naturality of unit and counit in Tensor-hom adjunction

Published on 14 Apr 2026 - 21:46

score 94 · Answer 6 · 2026-05-11 05:06:46

94

Views

Need help drawing these diagrams in category theory (sources for good diagrams would also be appreciated)

Published on 11 May 2026 - 5:06

score 62 · Answer 7 · 2026-04-10 16:34:51

62

Views

Functor description for topological group action

Published on 10 Apr 2026 - 16:34

score 89 · Answer 8 · 2026-04-15 15:43:15

89

Views

Benefits of using small and large sets instead of classes in category theory

Published on 15 Apr 2026 - 15:43

score 72 · Answer 9 · 2026-04-08 16:38:31

72

Views

Three questions about Wikipedia's definition of Van Kampen's theorem for fundamental groups

Published on 08 Apr 2026 - 16:38

score 68 · Answer 10 · 2026-04-15 22:47:50

68

Views

Full subcategories of $\textbf{Grp}$ that are monoidal closed

Published on 15 Apr 2026 - 22:47

score 103 · Answer 11 · 2026-04-14 10:19:53

103

Views

Meaning of a metric space being free having at most one element.

Published on 14 Apr 2026 - 10:19

score 60 · Answer 12 · 2026-04-24 09:38:45

60

Views

Questions about quotienting process, coequalizer and quotient objects.

Published on 24 Apr 2026 - 9:38

score 297 · Answer 13 · 2026-04-14 14:04:21

297

Views

Why $g$ is strict epimorphism if $g \circ f$ is a strict epimorphism?

Published on 14 Apr 2026 - 14:04

score 83 · Answer 14 · 2026-04-15 11:20:11

83

Views

Showing that the functor sending $R \mapsto R^\times$ is not faithful.

Published on 15 Apr 2026 - 11:20

score 75 · Answer 15 · 2026-04-11 18:48:47

75

Views

Identity on units in category with $\mathcal{S}$-indexed products

Published on 11 Apr 2026 - 18:48

List Question

What's the point of maximal atlases?

Contravariant Yoneda lemma

Serre subcategory: quotient functor sends morphism to zero morphism iff image belongs to Serre subcategory

Compact objects in the category of $n$-categories

Prove naturality of unit and counit in Tensor-hom adjunction

Need help drawing these diagrams in category theory (sources for good diagrams would also be appreciated)

Functor description for topological group action

Benefits of using small and large sets instead of classes in category theory

Three questions about Wikipedia's definition of Van Kampen's theorem for fundamental groups

Full subcategories of $\textbf{Grp}$ that are monoidal closed

Meaning of a metric space being free having at most one element.

Questions about quotienting process, coequalizer and quotient objects.

Why $g$ is strict epimorphism if $g \circ f$ is a strict epimorphism?

Showing that the functor sending $R \mapsto R^\times$ is not faithful.

Identity on units in category with $\mathcal{S}$-indexed products

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