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The second Feng-Rao number for codes coming from inductive semigroups (1505.01395v1)

Published 27 Apr 2015 in cs.IT, math.AC, math.CO, math.IT, and math.NT

Abstract: The second Feng-Rao number of every inductive numerical semigroup is explicitly computed. This number determines the asymptotical behaviour of the order bound for the second Hamming weight of one-point AG codes. In particular, this result is applied for the codes defined by asymptotically good towers of function fields whose Weierstrass semigroups are inductive. In addition, some properties of inductive numerical semigroups are studied, the involved Ap\'{e}ry sets are computed in a recursive way, and some tests to check whether a given numerical semigroups is inductive or not are provided.

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