List questions from category-theory

Published on 22 Aug 2014 - 14:31

136

Views

"Structure of a measure space is the coarsest among all substantial structures on a set..."

Published on 11 Apr 2026 - 17:11

361

Views

Canonical Map in a Category with Finite Products, Coproducts and a Zero Object.

Published on 22 Aug 2014 - 19:57

349

Views

Category of Hilbert Spaces

Published on 03 Apr 2026 - 2:39

100

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Reference for $F$-algebras and induction?

Published on 06 Apr 2026 - 6:10

183

Views

Functorial approach to Ideals and Quotients, Multiplicative Sets and Localizations

Published on 25 Mar 2026 - 21:48

77

Views

If for every pair of objects $a_1, a_2$ we have $fa_{1}=fa_{2}\implies ha_{1}=ha_{2}$, then $h$ factors through $f$

Published on 23 Aug 2014 - 9:03

57

Views

Building a function $p : \mathcal{D} \rightarrow \mathbf{Ord}$ from a faithful functor $U : \mathcal{C} \rightarrow \mathcal{D}.$

Published on 23 Aug 2014 - 15:10

1.4k

Views

Category with only one object.

Published on 23 Aug 2014 - 17:28

151

Views

Are there any stable $(\infty,1)$-topoi?

Published on 11 Apr 2026 - 7:30

81

Views

What is $1 / \mathbf{Set}$ if $1$ is a one-element set and $\mathbf{Set}$ a category?

Published on 05 Apr 2026 - 20:16

239

Views

How does a section of a stack give a sheaf?

Published on 04 Apr 2026 - 20:10

138

Views

Definition of quotient category

Published on 05 Apr 2026 - 20:17

234

Views

Absolute coequalizers in $\mathbf {Set} $

Published on 12 Apr 2026 - 0:42

62

Views

Homotopy colimit of a 3x3

Published on 27 Aug 2014 - 1:03

List Question

Somewhat Confused about Notation in Category Theory

"Structure of a measure space is the coarsest among all substantial structures on a set..."

Canonical Map in a Category with Finite Products, Coproducts and a Zero Object.

Category of Hilbert Spaces

Reference for $F$-algebras and induction?

Functorial approach to Ideals and Quotients, Multiplicative Sets and Localizations

If for every pair of objects $a_1, a_2$ we have $fa_{1}=fa_{2}\implies ha_{1}=ha_{2}$, then $h$ factors through $f$

Building a function $p : \mathcal{D} \rightarrow \mathbf{Ord}$ from a faithful functor $U : \mathcal{C} \rightarrow \mathcal{D}.$

Category with only one object.

Are there any stable $(\infty,1)$-topoi?

What is $1 / \mathbf{Set}$ if $1$ is a one-element set and $\mathbf{Set}$ a category?

How does a section of a stack give a sheaf?

Definition of quotient category

Absolute coequalizers in $\mathbf {Set} $

Homotopy colimit of a 3x3

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