March 30, 2020 Dataset Open Access

Östergård, Patric R J; Paavola, William T

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{
  "publisher": "Zenodo", 
  "DOI": "10.5281/zenodo.3733061", 
  "title": "Dataset for Quaternary Complex Hadamard Matrices of Order 18", 
  "issued": {
    "date-parts": [
      [
        2020, 
        3, 
        30
      ]
    ]
  }, 
  "abstract": "<p>The files contain the quaternary complex Hadamard matrices of order 18 classified in the work &quot;Patric R. J. &Ouml;sterg&aring;rd and William T. Paavola, Quaternary Complex Hadamard Matrices of Order 18&quot;.</p>\n\n<p>Each file bh18-t<strong>n</strong>.txt contains the matrices of type <strong>n</strong> up to Hadamard equivalence. Each matrix is expressed as a human-readable 18 by 18 array of <strong>x</strong>&isin;{0,1,2,3} such that the corresponding elements of each matrix are given by raising the imaginary unit to the power of <strong>x</strong>. Each array is followed by a single row that contains the size of the stabilizer of the matrix.</p>", 
  "author": [
    {
      "family": "\u00d6sterg\u00e5rd, Patric R J; Paavola, William T"
    }
  ], 
  "version": "1", 
  "type": "dataset", 
  "id": "3733061"
}