Technical Report CS0490

Title: On MDS Codes via Cauchy Matrices
Authors: Ron M. Roth and Abraham Lempel
Abstract: The special forn of Cauchy matrices is used to obtain a tighter bound for the validity region of the MDS Conjecture and a new compact characterization of generalized Reed-Solomon codes. The latter is fqrther used to obtain constructions and some nonexistence results of long[2k,k] double-circulant MDS codes.
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