Question

Proof that the inverse transpose conjugate is the transpose conjugate inverse

score 1.8k · Answer 1 · 2026-03-25 06:11:54

1.8k

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Proof that the inverse transpose conjugate is the transpose conjugate inverse

Published on 25 Mar 2026 - 6:11

score 57 · Answer 2 · 2026-03-25 04:41:11

57

Views

Proof that $\dfrac{\partial U_t}{\partial t} U_t^\dagger$ is anti-Hermitian by integration by parts

Published on 25 Mar 2026 - 4:41

score 470 · Answer 3 · 2026-03-25 06:09:58

470

Views

Commuting matrices with a transpose conjugate

Published on 25 Mar 2026 - 6:09

score 66 · Answer 4 · 2026-03-25 06:11:17

66

Views

Are one object involutive categories commutative monoids?

Published on 25 Mar 2026 - 6:11

score 41 · Answer 5 · 2026-03-25 06:09:06

41

Views

Hilbert Spaces from Dagger Categories

Published on 25 Mar 2026 - 6:09

score 200 · Answer 6 · 2026-03-25 06:11:15

200

Views

An "identity" functor $f:\mathbf{Rel} \to \mathbf{Rel}^{OP}$

Published on 25 Mar 2026 - 6:11

score 450 · Answer 7 · 2026-03-25 06:11:15

450

Views

Why do dagger categories supposedly capture the structure of a Hilbert space?

Published on 25 Mar 2026 - 6:11

score 70 · Answer 8 · 2026-03-25 06:11:02

70

Views

Dagger category generated by $\mathsf{Set}$ viewed as a subcategory of $\mathsf{Rel}$.

Published on 25 Mar 2026 - 6:11

score 93 · Answer 9 · 2026-03-25 06:10:37

93

Views

Two definitions of a monovalued morphism

Published on 25 Mar 2026 - 6:10

score 98 · Answer 10 · 2026-03-25 06:13:06

98

Views

In a dagger category, is there a name for morphisms $f : X \rightarrow Y$ with $\mathrm{id}_X = f^\dagger \circ f$?

Published on 25 Mar 2026 - 6:13

score 122 · Answer 11 · 2026-03-25 07:47:56

122

Views

Where can I learn more about the concept that is dual to "relation"?

Published on 25 Mar 2026 - 7:47

score 106 · Answer 12 · 2014-02-16 00:43:52

106

Views

In a dagger category, what do we call an arrow $f$ such that $f \circ f^\dagger \circ f = f$?

Published on 16 Feb 2014 - 0:43

score 71 · Answer 13 · 2014-02-19 10:55:58

71

Views

If $m = g \circ f$ in a dagger category and $m$ is an isometry, is it possible that $f$ fails to be an isometry?

Published on 19 Feb 2014 - 10:55

score 83 · Answer 14 · 2017-11-16 04:46:15

83

Views

Coproducts in dagger categories

Published on 16 Nov 2017 - 4:46

List Question

Proof that the inverse transpose conjugate is the transpose conjugate inverse

Proof that $\dfrac{\partial U_t}{\partial t} U_t^\dagger$ is anti-Hermitian by integration by parts

Commuting matrices with a transpose conjugate

Are one object involutive categories commutative monoids?

Hilbert Spaces from Dagger Categories

An "identity" functor $f:\mathbf{Rel} \to \mathbf{Rel}^{OP}$

Why do dagger categories supposedly capture the structure of a Hilbert space?

Dagger category generated by $\mathsf{Set}$ viewed as a subcategory of $\mathsf{Rel}$.

Two definitions of a monovalued morphism

In a dagger category, is there a name for morphisms $f : X \rightarrow Y$ with $\mathrm{id}_X = f^\dagger \circ f$?

Where can I learn more about the concept that is dual to "relation"?

In a dagger category, what do we call an arrow $f$ such that $f \circ f^\dagger \circ f = f$?

If $m = g \circ f$ in a dagger category and $m$ is an isometry, is it possible that $f$ fails to be an isometry?

Coproducts in dagger categories

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