Abstract
We construct an infinite family of (2ns, 2ns/2 -1(2ns/2−1), 2ns/2 -1(2ns/2 -1 −1)) difference sets over a Galois ring GR(2n, s) with characteristic an even power n of 2 and an odd extension degree s. It makes a chain of difference sets preserving the structures when n increases and s is fixed. We introduce a new operation into GR(2n, s). The Gauss sum associated with the multiplicative character defined by the subgroup with respect to the new operation plays an important role in the construction.
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Communicated by Q. Xiang.
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Yamada, M. Difference sets over Galois rings with odd extension degrees and characteristic an even power of 2. Des. Codes Cryptogr. 67, 37–57 (2013). https://doi.org/10.1007/s10623-011-9584-z
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DOI: https://doi.org/10.1007/s10623-011-9584-z