G. B. Belyavskaya

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In this article we study check character systems that is error detecting codes, which arise by appending a check digit a n to every word a 1 a 2 ...a n−1 : a 1 a 2 ...a n−1 → a 1 a 2 ...a n−1 a n with the check formula (...((a 1 · δa 2) · δ 2 a 3)...) · δ n−2 a n−1) · δ n−1 a n = c, where Q(·) is a quasigroup or a loop, δ is a permutation of Q, c ∈ Q. We(More)
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