Absract
In this chapter R(n) will denote the n-dimensional vector space over GF(q). We shall make the restriction (n,q) = 1. Consider the ring R of all polynomials with coefficients in GF(q), i.e. (GF(q)[x],+, ). Let S be the principal ideal in R generated by the polynomial xn-1, i.e. S := (({xn-1}),+, ). R/S is the residue class ring R mod S, i.e. (GF(q)[x] mod ({xn-1},+, ). The elements of this ring can be represented by polynomials of degree < n with coefficients in GF(q). The additive group of R/S is isomorphic to R(n). An isomorphism is given by associating the vector a = (aO,a1, ... ,an-1) with the polynomial aO + a1x + ... + an-1xn-1.
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© 1971 Springer-Verlag Berlin · Heidelberg
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(1971). Cyclic codes. In: Coding Theory. Lecture Notes in Mathematics, vol 201. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-36657-7_3
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DOI: https://doi.org/10.1007/978-3-540-36657-7_3
Publisher Name: Springer, Berlin, Heidelberg
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