Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica (Jul 2020)
Constacyclic codes over finite local Frobenius non-chain rings of length 5 and nilpotency index 4
Abstract
The family of finite local Frobenius non-chain rings of length 5 and nilpotency index 4 is determined, as a by-product all finite local Frobenius non-chain rings with p5 elements (p a prime) and nilpotency index 4 are given. And the number and structure of γ-constacyclic codes over those rings, of length relatively prime to the characteristic of the residue field of the ring, are determined.
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