2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/157864In this work, we construct commutative rings of two variable matrix differential operators that are isomorphic to a ring of meromorphic functions on a rational manifold obtained from the $CP^1\times CP^1$ by identification of two lines with the pole on a certain rational curve.17 pagesMathematical Physicstext