On Sums of s-orthogonal Matrices
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Keywords:
s-orthogonal matrix, s-unitary matrix, Sum of s-orthogonal and s-unitary matricesAbstract
In this paper we discussed the sum of s-orthogonal and s-unitary matrices. Also we show that every $A\in M_n(\mathbb{Z}_{2n-1})$ can be written as a sum of s-orthogonal matrices in $M_n$. Moreover, we show that every $A\in M_n(\mathbb{Z}_{2k})$ can be written a sum of of s-orthogonal matrices in $M_n(\mathbb{Z}_{2k})$ if and only if the row sums and column sums of A have the same parities.
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