A note on quadratic \(\sigma\)-polynomials
In this note the author obtains an expression for the possible values of b in a quadratic \(\sigma\)-polynomial, \(\sigma^ 2+a\sigma +b\), for given a. This is simpler than the equivalent result given by \textit{S.-J. Xu} (see the previous review).
scientific article; zbMATH DE number 4075090