2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/78837In this paper we characterise the indeterminate case by the eigenvalues of the Hankel matrices being bounded below by a strictly positive constant. An explicit lower bound is given in terms of the orthonormal polynomials and we find expresions for this lower bound in a number of indeterminate moment problems.14 pages, 1 figureClassical Analysis and ODEs42C05, 33C25, 31A15text