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- W2798153920 abstract "Turyn prove that if a circulant Hadamard matrix of order $n$ exists then $n$ must be of the form $n=4m^{2}$ for some odd integer $m$. In this paper we use the structure constant of Schur ring of $Z_{2}^{4m^{2}}$ to prove that there is no circulant Hadamard matrix in $Z_{2}^{4m^{2}}$ except possibly for sequences with Hamming weight $a+b$, with $frac{m^{2}-m}{2}leq aleqfrac{3m^{2}-m}{2}$ and $b=2m^{2}-m-a$ and with $frac{m^{2}+m}{2}leq 2m^{2}-aleqfrac{3m^{2}+m}{2}$ and $b=m+a$." @default.
- W2798153920 created "2018-04-24" @default.
- W2798153920 creator A5030714276 @default.
- W2798153920 date "2018-04-12" @default.
- W2798153920 modified "2023-09-27" @default.
- W2798153920 title "An Approximation to Proof of the Circulant Hadamard Conjecture." @default.
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