Question

Localising a ring twice gives ring isomorphic to localising by each subset in turn

score 54 · Answer 1 · 2023-05-12 10:55:08

54

Views

Localising a ring twice gives ring isomorphic to localising by each subset in turn

Published on 12 May 2023 - 10:55

score 113 · Answer 2 · 2023-05-31 13:21:35

113

Views

Show that $C^(\mathbb Z)$ is the universal $C^$-algebra generated by a unitary.

Published on 31 May 2023 - 13:21

score 71 · Answer 3 · 2023-06-12 14:59:43

71

Views

Are pseudometric completions canonical in any sense?

Published on 12 Jun 2023 - 14:59

score 157 · Answer 4 · 2026-03-25 19:02:56

157

Views

Associativity of tensor product using the universal property (and not elements)

Published on 25 Mar 2026 - 19:02

score 60 · Answer 5 · 2023-06-15 22:04:09

60

Views

The "characteristic property" of the tensor space

Published on 15 Jun 2023 - 22:04

score 62 · Answer 6 · 2023-07-10 18:08:43

62

Views

Confusion on Exercise 3.6.ii in Riehl: showing the product is associative via a unique nat. isomorphism

Published on 10 Jul 2023 - 18:08

score 144 · Answer 7 · 2026-03-26 09:18:08

144

Views

If $a^{p_1} b^{q_1}\ldots a^{p_n} b^{q_n} = e$ then $S = \{a,b\}$ is not a free generating set of $G = \langle S \rangle$

Published on 26 Mar 2026 - 9:18

score 56 · Answer 8 · 2023-07-21 21:51:45

56

Views

Do commutative diagrams on projections lift to a commutative diagram on a product category?

Published on 21 Jul 2023 - 21:51

score 70 · Answer 9 · 2023-07-25 04:40:49

70

Views

Continuous maps between covering spaces

Published on 25 Jul 2023 - 4:40

score 278 · Answer 10 · 2023-08-04 21:18:28

278

Views

Objects of categories with no morphisms from them other than endomorphisms

Published on 04 Aug 2023 - 21:18

score 68 · Answer 11 · 2026-03-25 01:46:44

68

Views

Wikipedia definition of Image in Category theory applied to Set

Published on 25 Mar 2026 - 1:46

score 115 · Answer 12 · 2023-08-16 22:59:25

115

Views

Is this diagram of the free product of two groups correct?

Published on 16 Aug 2023 - 22:59

score 70 · Answer 13 · 2023-08-28 20:47:06

70

Views

Looking for properties of a pseudo-logarithm where you add all the (prime factor$\cdot$exponent) terms in an integer's prime factorization?

Published on 28 Aug 2023 - 20:47

score 51 · Answer 14 · 2026-03-25 10:57:05

51

Views

What are colored morphisms/arrows intended to mean in these diagrams?

Published on 25 Mar 2026 - 10:57

score 55 · Answer 15 · 2026-03-25 11:07:02

55

Views

Universal property of the completion of a first-countable abelian topological group

Published on 25 Mar 2026 - 11:07

List Question

Localising a ring twice gives ring isomorphic to localising by each subset in turn

Show that $C^(\mathbb Z)$ is the universal $C^$-algebra generated by a unitary.

Are pseudometric completions canonical in any sense?

Associativity of tensor product using the universal property (and not elements)

The "characteristic property" of the tensor space

Confusion on Exercise 3.6.ii in Riehl: showing the product is associative via a unique nat. isomorphism

If $a^{p_1} b^{q_1}\ldots a^{p_n} b^{q_n} = e$ then $S = \{a,b\}$ is not a free generating set of $G = \langle S \rangle$

Do commutative diagrams on projections lift to a commutative diagram on a product category?

Continuous maps between covering spaces

Objects of categories with no morphisms from them other than endomorphisms

Wikipedia definition of Image in Category theory applied to Set

Is this diagram of the free product of two groups correct?

Looking for properties of a pseudo-logarithm where you add all the (prime factor$\cdot$exponent) terms in an integer's prime factorization?

What are colored morphisms/arrows intended to mean in these diagrams?

Universal property of the completion of a first-countable abelian topological group

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