2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/76637An upper bound on operator norms of compound matrices is presented, and special cases that involve the $\ell_1$, $\ell_2$ and $\ell_\infty$ norms are investigated. The results are then used to obtain bounds on products of the largest or smallest eigenvalues of a matrix.Rings and Algebras15A15; 15A42; 15A60text