List questions from unitary-matrices

Published on 27 May 2021 - 15:03

128

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Classification of compact connected Lie subgroup of $U(2)$

Published on 28 May 2021 - 1:26

20

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Generating a specific element of a group using a minimum number of elements from a subset of the generators

Published on 29 May 2021 - 3:15

109

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Given a unitary vector $(x_1,\ldots,x_n)^T$ and a vector $y=(x_2,\ldots, x_n)^T$, prove the columns of a created matrix form an orthonormal basis

Published on 29 May 2021 - 13:38

101

Views

Consequences of Deficiency indices theorem (Von Neumann theory)

Published on 27 Mar 2026 - 0:04

587

Views

Can any unitary and pd matrices be represented by exponential matrix?

Published on 31 May 2021 - 3:23

78

Views

Solve the non-square matrix to get the closest unitary matrix

Published on 06 Jun 2021 - 9:27

149

Views

Unitary matrix completion problem

Published on 25 Mar 2026 - 17:35

274

Views

General form of Matrix in SU(1,1),PSU(1,1) and Unit Disk Automorphisms

Published on 07 Jun 2021 - 8:38

230

Views

Uses for eigenvalues of unitary matrices

Published on 11 Jun 2021 - 21:41

47

Views

What is the maximum of $\operatorname{Tr}(EUAU^\dagger)$ when $U$ is unitary?

Published on 23 Feb 2026 - 10:49

273

Views

Relation between defining representation of SU(4) and spin-3/2 representation of SU(2)

Published on 22 Jun 2021 - 14:07

128

Views

Is any $SU(n)$-matrix diagnalizable with an element of $SU(n)$

Published on 03 Jul 2021 - 8:48

29

Views

Generating complex unitary matrix with a given column

Published on 16 Jul 2021 - 18:19

99

Views

On the angle of a polar decomposition of a matrix

Published on 26 Mar 2026 - 22:54

List Question

Relation between $SU(2)$ and $O(3)$

Classification of compact connected Lie subgroup of $U(2)$

Generating a specific element of a group using a minimum number of elements from a subset of the generators

Given a unitary vector $(x_1,\ldots,x_n)^T$ and a vector $y=(x_2,\ldots, x_n)^T$, prove the columns of a created matrix form an orthonormal basis

Consequences of Deficiency indices theorem (Von Neumann theory)

Can any unitary and pd matrices be represented by exponential matrix?

Solve the non-square matrix to get the closest unitary matrix

Unitary matrix completion problem

General form of Matrix in SU(1,1),PSU(1,1) and Unit Disk Automorphisms

Uses for eigenvalues of unitary matrices

What is the maximum of $\operatorname{Tr}(EUAU^\dagger)$ when $U$ is unitary?

Relation between defining representation of SU(4) and spin-3/2 representation of SU(2)

Is any $SU(n)$-matrix diagnalizable with an element of $SU(n)$

Generating complex unitary matrix with a given column

On the angle of a polar decomposition of a matrix

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