Dual of a cyclic code
= Dual of a cyclic code
The dual of a cyclic code is cyclic. If $g(X)h(X)=X^n-1$, then the dual generator is the monic reciprocal polynomial $h^*(X)$.
= Dual of a cyclic code
The dual of a cyclic code is cyclic. If $g(X)h(X)=X^n-1$, then the dual generator is the monic reciprocal polynomial $h^*(X)$.