List questions from unitary-matrices

Published on 29 Sep 2023 - 19:22

19

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Matrix multiplication involving a unitary matrix in exponential form and a simple matrix

Published on 02 Oct 2023 - 7:49

74

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Eigenvalues of $A \overline{A}$

Published on 04 Oct 2023 - 14:59

18

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Need a book about complex hermitian matrix and special unitary matrices and their optimization in numerical problems

Published on 20 Mar 2026 - 4:03

43

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Unitary operator statement

Published on 09 Oct 2023 - 16:54

23

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circulant Schur decomposition

Published on 25 Mar 2026 - 5:11

36

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Is it possible to find unitary $\boldsymbol{\Theta}$ and scalar $\lambda$ such that $\boldsymbol{\Theta a} = \lambda \boldsymbol{b}$?

Published on 17 Oct 2023 - 15:45

59

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Cauchy-Schwarz-like inequality for certain determinants

Published on 18 Oct 2023 - 14:19

111

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Spectral radius of $\sum_{i=1}^N U_i \otimes J_i \otimes U^_i \otimes J^_i$ bounded by that of $\sum_{i=1}^N J_i \otimes J^*_i$ for unitary $U$

Published on 18 Oct 2023 - 21:45

97

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Difference Between Simultaneous Diagonalization and Generalized Eigenvalue Problem

Published on 24 Oct 2023 - 21:12

49

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question about unitary matrix and PSD matrix

Published on 25 Oct 2023 - 10:35

109

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Lie algebra of real unitary matrices

Published on 28 Oct 2023 - 13:07

51

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First fundamental theorem of invariants for the unitary group

Published on 31 Oct 2023 - 12:42

40

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Triple Product Formula on $K = SU(2)$

Published on 01 Nov 2023 - 10:47

54

Views

Finitely generated dense subgroup of an unitary group

Published on 25 Mar 2026 - 19:10

List Question

Under what conditions does $B = A B A^\intercal$ imply $A = I$ for a symmetric matrix B

Matrix multiplication involving a unitary matrix in exponential form and a simple matrix

Eigenvalues of $A \overline{A}$

Need a book about complex hermitian matrix and special unitary matrices and their optimization in numerical problems

Unitary operator statement

circulant Schur decomposition

Is it possible to find unitary $\boldsymbol{\Theta}$ and scalar $\lambda$ such that $\boldsymbol{\Theta a} = \lambda \boldsymbol{b}$?

Cauchy-Schwarz-like inequality for certain determinants

Spectral radius of $\sum_{i=1}^N U_i \otimes J_i \otimes U^_i \otimes J^_i$ bounded by that of $\sum_{i=1}^N J_i \otimes J^*_i$ for unitary $U$

Difference Between Simultaneous Diagonalization and Generalized Eigenvalue Problem

question about unitary matrix and PSD matrix

Lie algebra of real unitary matrices

First fundamental theorem of invariants for the unitary group

Triple Product Formula on $K = SU(2)$

Finitely generated dense subgroup of an unitary group

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