List questions from category-theory

Published on 26 Mar 2026 - 9:42

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Object of a Category $C$ acts as Functor

Published on 31 Mar 2026 - 15:55

1.1k

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Understanding the inverse limit and universal property of topological spaces

Published on 25 Mar 2026 - 11:04

1.6k

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Functors between sets, posets, and groups

Published on 03 Feb 2019 - 19:43

64

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Equivalent definitions of a contravariant functor

Published on 25 Mar 2026 - 10:21

207

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What notation should be used for right adjunct of arrow ($f^{\sharp}$ or $f^{\flat})$?

Published on 29 Mar 2026 - 17:06

414

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What is the intuitive concept captured by "adjunction"

Published on 25 Mar 2026 - 6:31

258

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Transpose of a functor

Published on 05 Feb 2019 - 2:11

126

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Clarification of the statement of the Yoneda lemma

Published on 26 Mar 2026 - 12:53

330

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Find all complex irreducible representations of $\mathbb{H}_8 \times C_2^2$

Published on 29 Mar 2026 - 15:59

255

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Understanding sheaves on a $2$-element set

Published on 26 Mar 2026 - 16:08

208

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Examples and Proof on Formal Duality

Published on 06 Feb 2019 - 3:24

126

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Question on Universal Mapping Properties

Published on 06 Feb 2019 - 3:55

106

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Direct definition of product or box topology?

Published on 07 Feb 2019 - 8:00

378

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When we think of groups as one object categories, how do we define the morphisms for particular group elements?

Published on 07 Feb 2019 - 20:21

List Question

What has gone wrong in this proof of the Yoneda Lemma

Object of a Category $C$ acts as Functor

Understanding the inverse limit and universal property of topological spaces

Functors between sets, posets, and groups

Equivalent definitions of a contravariant functor

What notation should be used for right adjunct of arrow ($f^{\sharp}$ or $f^{\flat})$?

What is the intuitive concept captured by "adjunction"

Transpose of a functor

Clarification of the statement of the Yoneda lemma

Find all complex irreducible representations of $\mathbb{H}_8 \times C_2^2$

Understanding sheaves on a $2$-element set

Examples and Proof on Formal Duality

Question on Universal Mapping Properties

Direct definition of product or box topology?

When we think of groups as one object categories, how do we define the morphisms for particular group elements?

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