On structure and distances of some classes of repeated-root constacyclic codes over Galois rings

• Main Authors: Dinh H., Liu H., Liu X., Sriboonchitta S.
• 格式: 雜誌
• 出版: 2017
• 在線閱讀: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84991738766&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/41065
• 機構: Chiang Mai University

© 2016 Elsevier Inc. The structure of λ-constacyclic codes of length 2 s over the Galois ring GR(2 a ,m) is obtained, for any unit λ of the form 4z−1, z∈GR(2 a ,m). The duals codes and necessary and sufficient conditions for the existence of a self-dual λ-constacyclic code are provided. Among other...