Galois groups and rational solutions of $p(X)=A$

G. J. Groenewald, G. Goosen, D. B. Janse van Rensburg +2

We extend Theorem 1 of R. Reams, A Galois approach to m-th roots of matrices with rational entries, LAA 258 (1997), 187-194. Let $p(\lambda )$ be any polynomial over $\mathbb{Q}$ and let…