List questions from hadamard-matrices

Published on 26 Jun 2020 - 15:30

59

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Prove $\det (A)\le \left(\max_{i,j}|A_{ij}|\right)^n n^{n/2}$

Published on 13 Oct 2016 - 10:52

330

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How to get the value of Hadamard matrix given its column and row index?

Published on 04 Nov 2016 - 6:40

63

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Are all Hadamard matrices equivalent to their transposes?

Published on 22 Mar 2023 - 21:26

20

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Is there a "nice" expression for indicators on the entries of a Complex Hadamard matrix in the $p$th Butson class?

Published on 05 Jul 2023 - 16:09

10

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Request for links: Hadamard's Maximum Determinant Problem

Published on 21 Nov 2023 - 8:16

23

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Unique construction of Hadamard matrices

Published on 23 Feb 2024 - 4:55

16

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Spectrum of complex Hadamard matrix

Published on 14 Mar 2024 - 14:40

926

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Kronecker product of two Hadamard matrices is Hadamard matrix

Published on 03 Apr 2015 - 4:37

1.6k

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spectrum of the Hadamard matrices

Published on 07 Mar 2016 - 10:58

305

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Known classes of Hadamard matrices

Published on 08 Apr 2016 - 18:13

123

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Can (complex) Hadamard matrices of order $n!$ be related to symmetric groups?

Published on 19 May 2013 - 22:04

104

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Legendre symbol for constructing Hadamard matrix

Published on 12 May 2017 - 9:05

187

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Is There a Unitary Transformation Which Maps Non-Orthogonal Vectors into 'Uniform' Vectors?

Published on 24 Jul 2017 - 4:25

68

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Suggestions regarding Hadamard Matrices

Published on 04 Nov 2017 - 13:09

List Question

Proof that Hadamard matrices of order $4k+2$ don't exist

Prove $\det (A)\le \left(\max_{i,j}|A_{ij}|\right)^n n^{n/2}$

How to get the value of Hadamard matrix given its column and row index?

Are all Hadamard matrices equivalent to their transposes?

Is there a "nice" expression for indicators on the entries of a Complex Hadamard matrix in the $p$th Butson class?

Request for links: Hadamard's Maximum Determinant Problem

Unique construction of Hadamard matrices

Spectrum of complex Hadamard matrix

Kronecker product of two Hadamard matrices is Hadamard matrix

spectrum of the Hadamard matrices

Known classes of Hadamard matrices

Can (complex) Hadamard matrices of order $n!$ be related to symmetric groups?

Legendre symbol for constructing Hadamard matrix

Is There a Unitary Transformation Which Maps Non-Orthogonal Vectors into 'Uniform' Vectors?

Suggestions regarding Hadamard Matrices

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