2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/175528It is shown that the ground-state eigenvalue of a semirelativistic Hamiltonian of the form H = sqrt(m^2+p^2) + V is bounded below by the Schroedinger operator m + beta p^2 + V, for suitable beta > 0. An example is discussed.7 pages, 1 figureMathematical PhysicsHigh Energy Physics - TheorySchroedinger secant lower bounds to semirelativistic eigenvaluestext