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15
Math.TechQA.Club
2026-04-11 19:21:33
144
Views
Why are natural transformations the morphisms between functors?
Published on
11 Apr 2026 - 19:21
#category-theory
#soft-question
#motivation
37
Views
Dual equivalence of categories is exact
Published on
15 Apr 2026 - 3:42
#category-theory
58
Views
Is this the correct formulation for the universal property and pushout diagram for cokernel?
Published on
11 May 2026 - 8:32
#category-theory
#definition
#universal-property
#morphism
124
Views
Eilenberg-Zilber's lemma existence
Published on
10 May 2026 - 19:07
#category-theory
#homotopy-theory
#simplicial-stuff
#epimorphisms
98
Views
$\mathrm{Top}$ as a double category
Published on
26 Apr 2026 - 6:11
#general-topology
#algebraic-topology
#category-theory
#higher-category-theory
89
Views
Construct left and right adjoints to $ob: Cat \to Sets$
Published on
15 Apr 2026 - 13:46
#category-theory
110
Views
A question about monoidal functors
Published on
27 Mar 2023 - 13:46
#category-theory
#monoidal-categories
45
Views
Is this the correct definition of cokernel pair along with its commutative diagram from the definition of kernel pair?
Published on
22 Apr 2026 - 1:33
#category-theory
#notation
#definition
99
Views
Categories and Sheaves Kashiwara Schapira Theorem 14.4.5
Published on
17 Apr 2026 - 9:37
#category-theory
#derived-functors
134
Views
Additive functors as colimits of representable functors
Published on
26 Mar 2026 - 14:19
#category-theory
#limits-colimits
#additive-categories
138
Views
Questions and clarifications needed concerning the definitions of equalizer and coequalizer in the category of vector space.
Published on
22 Apr 2026 - 1:34
#linear-algebra
#vector-spaces
#category-theory
#notation
#definition
79
Views
Free ring on a semi ring
Published on
15 Apr 2026 - 19:10
#ring-theory
#category-theory
#ideals
#adjoint-functors
65
Views
Clarification in Lenstra's Galois Theory for Schemes notes
Published on
11 Apr 2026 - 8:56
#category-theory
#galois-theory
#group-actions
108
Views
Do module isomorphisms preserve freeness?
Published on
10 May 2026 - 19:01
#category-theory
#free-modules
#module-isomorphism
61
Views
Non-categorical properties
Published on
12 Apr 2026 - 1:24
#category-theory
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