2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/55703First examples of quasi-exactly solvable models describing spin-orbital interaction are constructed. In contrast with other examples of matrix quasi-exactly solvable models discussed in the literature up to now, our models admit (but still incomplete) sets of exact (algebraic) solutions.6 pages, LaTeXHigh Energy Physics - Theorytext