Yuan-Lung Lin

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An m × n matrix A = (a i,j) is circulant if a i+1,j+1 = a i,j where the subscripts are reduced modulo n. A question arising in stream cypher cryptanalysis is reframed as follows: For given n, what is the maximum value of m for which there exists a circulant m × n (±1)-matrix A such that AA T = nI m. In 2013, Craigen et al. called such matrices circulant(More)
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