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15
Math.TechQA.Club
2026-03-22 18:50:39
228
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Example of functor not full not faithfull
Published on
22 Mar 2026 - 18:50
#category-theory
#functors
605
Views
What has more potential: Differential algebraic geometry or Diffiety theory?
Published on
25 Mar 2026 - 12:32
#ordinary-differential-equations
#algebraic-geometry
#reference-request
#category-theory
#topos-theory
513
Views
Categorical meaning of the action of a group on itself by conjugation
Published on
25 Mar 2026 - 4:42
#category-theory
#group-actions
70
Views
Dlat and Cohfrm equivalent.
Published on
24 Mar 2026 - 23:42
#category-theory
#lattice-orders
97
Views
Bijective on objects implies essentially surjection
Published on
22 Mar 2026 - 21:32
#category-theory
#functors
2.8k
Views
Quasi-inverse of an equivalence of categories is unique up to unique isomorphism
Published on
23 Mar 2026 - 11:26
#category-theory
#functors
59
Views
Understanding $k[Hom(x,y]$ for a category
Published on
25 Mar 2026 - 12:53
#category-theory
#representation-theory
239
Views
Finitely Generated Category Representation
Published on
25 Mar 2026 - 12:47
#category-theory
#representation-theory
138
Views
Why does "Hom" in a $\mathsf{Hom}_{\mathsf{A}}(A, B)$ stand for "homomorphism"?
Published on
25 Mar 2026 - 14:39
#category-theory
#definition
217
Views
fibered category associated to a pseudo functor
Published on
15 Mar 2018 - 5:18
#category-theory
44
Views
Image of a Directed System under a Contravariant Functor
Published on
15 Mar 2018 - 14:19
#algebraic-geometry
#category-theory
685
Views
Localization commutes with finite products (Vakil, ex. 1.3.F)
Published on
25 Mar 2026 - 3:02
#abstract-algebra
#category-theory
#modules
#localization
#universal-property
155
Views
How to represent convolution matrix as a string diagram?
Published on
22 Mar 2026 - 14:20
#category-theory
#machine-learning
#monoidal-categories
321
Views
epimorphism of fppf sheaves is an fppf morphism
Published on
25 Mar 2026 - 6:04
#algebraic-geometry
#category-theory
#sheaf-theory
#topos-theory
355
Views
The category of descent data
Published on
22 Mar 2026 - 18:49
#category-theory
#descent
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