Abstract
Let K = Q (θ) be an algebraic number field with θ a root of an irreducible polynomial f(x) = x 6 + axm + b belonging to ℤ[x] and 1 ≤ m ≤ 5. Let OK be the ring of algebraic integers of K. We say that K is monogenic if there exists some α ∈ OK such that OK = Z[α]. In this paper, we give some explicit conditions on a, b for which K is non-monogenic. We illustrate our results through examples.
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