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15
54
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Proof method for Hilbert spaces

Published on
#category-theory #hilbert-spaces #banach-spaces
324
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Isomorphic in Product Category

Published on
#category-theory
90
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A presheaf is a sheaf if and only if it satisfies some property

Published on
#category-theory #sheaf-theory
387
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Using Yoneda's Lemma to show that limits are unique

Published on
#category-theory #solution-verification #limits-colimits #yoneda-lemma
130
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Inverse image functor and resriction of colimits

Published on
#category-theory #sheaf-theory #limits-colimits #functors
632
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Kernel of a morphism between two chain complexes concentrated in degree 0 in the homotopy category

Published on
#category-theory #homological-algebra #abelian-categories
71
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Do monads and comonads with the same functor always compose?

Published on
#category-theory #monads
70
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In what sense $f_n:\mathbb{Z}/p^{n+1} \to \mathbb{Z}/p^n \mathbb{Z}$ is a projection map?

Published on
#category-theory #p-adic-number-theory
149
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Can the left/right-inverse of natural transformation be analogous to the left/right inverse of a function between hom-set?

Published on
#reference-request #category-theory #inverse #functors #natural-transformations
168
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Composition of flat morphisms is flat

Published on
#category-theory #modules #flatness #morphism #diagram-chasing
300
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Using the Yoneda Lemma to construct a left adjoint to the restriction functor $U : C^A \to C^{\operatorname{ob} A}$

Published on
#category-theory #monads
189
Views

Finding left/right adjoints of a forgetful functor.

Published on
#category-theory #adjoint-functors
433
Views

Formal Power Series as Initial Objects?

Published on
#abstract-algebra #logic #reference-request #category-theory #formal-power-series
643
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Intuition behind $T$-algebras

Published on
#category-theory #monads
57
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functor between the category of Finite sets which is not monoidal

Published on
#category-theory #monoidal-categories

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