Geodesic
Hadamard and conference matrices
Journal of Algebraic Combinatorics, Tome 14 (2001) no. 2, pp. 103-117.

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

Summary: We discuss new constructions of Hadamard and conference matrices using relative difference sets. We present the first example of a relative $( n, 2, n - 1, \frac n - 22)$ (n, 2, n - 1, fracn - 22) -difference set where $n - 1$ is not a prime power.
Keywords: difference sets, relative difference sets, Hadamard matrices 
@article{JAC_2001__14_2_a5,
     author = {Arasu, K.T. and Chen, Yu Qing and Pott, Alexander},
     title = {Hadamard and conference matrices},
     journal = {Journal of Algebraic Combinatorics},
     pages = {103--117},
     publisher = {mathdoc},
     volume = {14},
     number = {2},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2001__14_2_a5/}
}
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Arasu, K.T.; Chen, Yu Qing; Pott, Alexander. Hadamard and conference matrices. Journal of Algebraic Combinatorics, Tome 14 (2001) no. 2, pp. 103-117. http://geodesic.mathdoc.fr/item/JAC_2001__14_2_a5/