2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/120372Exactly solvable $N$-dimensional model of the quantum isotropic singular oscillator in the relativistic configurational $\vec r_N$-space is proposed. It is shown that through the simple substitutions the finite-difference equation for the $N$-dimensional singular oscillator can be reduced to the similar finite-difference equation for the relativistic isotropic three-dimensional singular oscillator. We have found the radial wavefunctions and energy spectrum of the problem and constructed a dynamical symmetry algebra.8 pages, accepted for publication in J. Phys. AMathematical Physics70F10; 70H40; 39A70; 81R10text