Geodesic
A ring theoretic construction of Hadamard difference sets in Z8n×Z2n
Journal of Algebraic Combinatorics, Tome 22 (2005) no. 2, pp. 181-187.

Voir la notice de l'article dans Electronic Library of Mathematics

Summary: Let S= GR(23,n) S=GR(2^3, n) be the Galois ring of characteristic 23 and rank n and let R=S[X]/(X2,2X−4) R=S[X]/(X^2, 2X-4) . We give an explicit construction of Hadamard difference sets in (R,+)@Z8n×Z2n (R,+)≅Z_8^n×Z_2^n .
Mots-clés : keywords bent function, finite Frobenius local ring, Galois ring, Hadamard difference set 
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     author = {Hou, Xiang-dong},
     title = {A ring theoretic construction of {Hadamard} difference sets in $\Bbb Z^n_8 \times \Bbb Z^n_2$},
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Hou, Xiang-dong. A ring theoretic construction of Hadamard difference sets in $\Bbb Z^n_8 \times \Bbb Z^n_2$. Journal of Algebraic Combinatorics, Tome 22 (2005) no. 2, pp. 181-187. https://geodesic-test.mathdoc.fr/item/JAC_2005__22_2_a2/