2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/141916It is shown that boundary conditions of the Darboux transformed Dirac Sturm--Liouville problem are always zero-valued independently on boundary conditions of initial problem.High Energy Physics - TheoryDarboux transformation of boundary conditions of regular Dirac Sturm--Liouville problemtext