Skew-symmetrizable Matrix
An n-by-n matrix A is said to be skew-symmetrizable if there exist an invertible diagonal matrix D and skew-symmetric matrix S such that A = DS. For real n-by-n matrices, sometimes the condition for D to have positive entries is added.
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“As all historians know, the past is a great darkness, and filled with echoes. Voices may reach us from it; but what they say to us is imbued with the obscurity of the matrix out of which they come; and try as we may, we cannot always decipher them precisely in the clearer light of our day.”
—Margaret Atwood (b. 1939)
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