Dual of Codes over Finite Quotients of Polynomial Rings

Ashkan Nikseresht

doi:10.1016/j.ffa.2017.01.003

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arXiv · 1605.03356

Dual of Codes over Finite Quotients of Polynomial Rings

Ashkan Nikseresht

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Abstract

Let $A=\frac{\mathbb{F}[x]}{\langle f(x)\rangle }$, where $f(x)$ is a monic polynomial over a finite field $\mathbb{F}$. In this paper, we study the relation between $A$-codes and their duals. In particular, we state a counterexample and a correction to a theorem of Berger and El Amrani (Codes over finite quotients of polynomial rings, \emph{Finite Fields Appl.} \textbf{25} (2014), 165--181) and present an efficient algorithm to find a system of generators for the dual of a given $A$-code. Also we characterize self-dual $A$-codes of length 2 and investigate when the $\mathbb{F}$-dual of $A$-codes are $A$-codes.

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Ashkan Nikseresht. 2016-12-29. Dual of Codes over Finite Quotients of Polynomial Rings. https://doi.org/10.1016/j.ffa.2017.01.003

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