Abstract
This article studies quadratic residue codes of prime length \(q\) over the ring \(R=\mathbb {F}_{p}+v\mathbb {F}_{p}+v^{2}\mathbb {F}_{p},\) where \(p,q\) are distinct odd primes. After studying the structure of cyclic codes of length \(n\) over \(R,\) quadratic residue codes over \(R\) are defined by their generating idempotents and their extension codes are discussed. Examples of codes and idempotents for small values of \(p\) and \(q\) are given. As a by-product almost MDS codes over \(\mathbb {F}_7\) and \(\mathbb {F}_{13}\) are constructed.
This research is supported by NNSF of China (61202068), Talents youth Fund of Anhui Province Universities (2012SQRL020ZD). Technology Foundation for Selected Overseas Chinese Scholar, Ministry of Personnel of China (05015133) and the Project of Graduate Academic Innovation of Anhui University (N0. yfc100005).
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Liu, Y., Shi, M., Solé, P. (2015). Quadratic Residue Codes over \(\mathbb {F}_p+v\mathbb {F}_p+v^{2}\mathbb {F}_p\) . In: Koç, Ç., Mesnager, S., Savaş, E. (eds) Arithmetic of Finite Fields. WAIFI 2014. Lecture Notes in Computer Science(), vol 9061. Springer, Cham. https://doi.org/10.1007/978-3-319-16277-5_12
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DOI: https://doi.org/10.1007/978-3-319-16277-5_12
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