Question

Notations and definition clarification related question about Functors in category theory.

score 64 · Answer 1 · 2026-04-13 09:20:40

64

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Notations and definition clarification related question about Functors in category theory.

Published on 13 Apr 2026 - 9:20

score 92 · Answer 2 · 2026-04-12 17:06:19

92

Views

Group product in Aluffi's book

Published on 12 Apr 2026 - 17:06

score 70 · Answer 3 · 2026-04-14 01:36:43

70

Views

Question about the union in abelian categories

Published on 14 Apr 2026 - 1:36

score 53 · Answer 4 · 2026-04-16 20:31:19

53

Views

Is the morphism making this diagram commute unique in a general category?

Published on 16 Apr 2026 - 20:31

score 39 · Answer 5 · 2026-05-11 03:12:06

39

Views

Prove the category of all fibrations is a fibration.

Published on 11 May 2026 - 3:12

score 116 · Answer 6 · 2026-04-14 12:17:39

116

Views

Is there a concrete category with a surjective morphism that is not a retraction?

Published on 14 Apr 2026 - 12:17

score 59 · Answer 7 · 2026-05-11 04:23:39

59

Views

Construction of 2-category of monoidal categories and (lax) monoidal functors as strict algebra category of a 2-monad

Published on 11 May 2026 - 4:23

score 59 · Answer 8 · 2026-04-16 17:13:55

59

Views

Do commutative diagrams on projections lift to a commutative diagram on a product category?

Published on 16 Apr 2026 - 17:13

score 53 · Answer 9 · 2026-04-10 04:59:34

53

Views

Question about definition of presheaf in Hartshorne

Published on 10 Apr 2026 - 4:59

score 27 · Answer 10 · 2026-04-09 14:18:38

27

Views

Dependent product between slices over groups

Published on 09 Apr 2026 - 14:18

score 125 · Answer 11 · 2026-04-24 02:12:02

125

Views

T. W. Hungerford Graduate Text in Mathematics. Algebra. Definition 7.2

Published on 24 Apr 2026 - 2:12

score 47 · Answer 12 · 2026-04-11 07:17:10

47

Views

Word reduction and multiplication rules for forming product and coproduct of monoids and free monoids

Published on 11 Apr 2026 - 7:17

score 137 · Answer 13 · 2026-04-07 20:47:00

137

Views

Are the limits of Euclidean spaces Hilbert spaces?

Published on 07 Apr 2026 - 20:47

score 58 · Answer 14 · 2026-04-17 04:54:18

58

Views

Unit laws in the definition of internal category

Published on 17 Apr 2026 - 4:54

score 1.1k · Answer 15 · 2026-04-08 21:05:43

1.1k

Views

Does this definition of an epimorphism work?

Published on 08 Apr 2026 - 21:05

List Question

Notations and definition clarification related question about Functors in category theory.

Group product in Aluffi's book

Question about the union in abelian categories

Is the morphism making this diagram commute unique in a general category?

Prove the category of all fibrations is a fibration.

Is there a concrete category with a surjective morphism that is not a retraction?

Construction of 2-category of monoidal categories and (lax) monoidal functors as strict algebra category of a 2-monad

Do commutative diagrams on projections lift to a commutative diagram on a product category?

Question about definition of presheaf in Hartshorne

Dependent product between slices over groups

T. W. Hungerford Graduate Text in Mathematics. Algebra. Definition 7.2

Word reduction and multiplication rules for forming product and coproduct of monoids and free monoids

Are the limits of Euclidean spaces Hilbert spaces?

Unit laws in the definition of internal category

Does this definition of an epimorphism work?

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