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math.CO2019★ 1 cited
Hamming Polynomial of a Demimatroid
Jose Martinez-Bernal, Miguel A. Valencia-Bucio, Rafael H. Villarreal
Following Britz, Johnsen, Mayhew and Shiromoto, we consider demi\-ma\-troids as a(nother) natural generalization of matroids. As they have shown, demi\-ma\-troids are the appropria…
cs.IT2019
Linear codes over signed graphs
Jose Martinez-Bernal, Miguel A. Valencia, Rafael H. Villarreal
We give formulas, in terms of graph theoretical invariants, for the minimum distance and the generalized Hamming weights of the linear code generated by the rows of the incidence m…