Please use this identifier to cite or link to this item: http://cmuir.cmu.ac.th/jspui/handle/6653943832/63683
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dc.contributor.authorHai Q. Dinhen_US
dc.contributor.authorBac T. Nguyenen_US
dc.contributor.authorSongsak Sriboonchittaen_US
dc.contributor.authorThang M. Voen_US
dc.date.accessioned2019-03-18T02:23:56Z-
dc.date.available2019-03-18T02:23:56Z-
dc.date.issued2019-02-01en_US
dc.identifier.issn02194988en_US
dc.identifier.other2-s2.0-85059046776en_US
dc.identifier.other10.1142/S0219498819500221en_US
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85059046776&origin=inwarden_US
dc.identifier.urihttp://cmuir.cmu.ac.th/jspui/handle/6653943832/63683-
dc.description.abstract© 2019 World Scientific Publishing Company. Let p be a prime such that pm ≡ 3(mod 4). For any unit λ of pm, we determine the algebraic structures of λ-constacyclic codes of length 4ps over the finite commutative chain ring pm + upm, u2 = 0. If the unit λ pm is a square, each λ-constacyclic code of length 4ps is expressed as a direct sum of an -α-constacyclic code and an α-constacyclic code of length 2ps. If the unit λ is not a square, then x4 - λ 0 can be decomposed into a product of two irreducible coprime quadratic polynomials which are x2 + γx + γ2 2 and x2 - γx + γ2 2, where λ0ps = λ and γ4 = -4λ 0. By showing that the quotient rings ℝ x2+γx+γ2 2 ps and ℝ x2-γx+γ2 2 ps are local, non-chain rings, we can compute the number of codewords in each of λ-constacyclic codes. Moreover, the duals of such codes are also given.en_US
dc.subjectMathematicsen_US
dc.titleOn a class of constacyclic codes of length 4 ps over pm + upmen_US
dc.typeJournalen_US
article.title.sourcetitleJournal of Algebra and its Applicationsen_US
article.volume18en_US
article.stream.affiliationsTon-Duc-Thang Universityen_US
article.stream.affiliationsKent State Universityen_US
article.stream.affiliationsUniversity of Economics and Business Administrationen_US
article.stream.affiliationsNguyen Tat Thanh Universityen_US
article.stream.affiliationsChiang Mai Universityen_US
article.stream.affiliationsVinh Universityen_US
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