Group rings and the norm groups
The author's purpose is to determine the set of all polynomials in \(\mathbb{Z}[t]\) with \(f(t)\) dividing \(t^ n-1\) of a form called \(H\)-type (which means that if \(G\) is a cyclic group of order \(a\) generated by \(\sigma\) then \(a^{f(\sigma)}=1\) implies the existence of a \(b\) with \(a=b^{(\sigma^ n -1)/ f(\sigma)}\)).
scientific article; zbMATH DE number 597340