2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/75648Let A be an n by n matrix, whose entries are independent copies of a centered random variable satisfying the subgaussian tail estimate. We prove that the operator norm of A^{-1} does not exceed Cn^{3/2} with probability close to 1.25 pagesFunctional Analysis15A52, 46B09text