2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/66118We consider a rational-trigonometric deformation in context of rational and trigonometric deformations. The simplest examples of these deformations are presented in different fields of mathematics. Rational-trigonometric differential Knizhnik-Zamolodchikov and dynamical equations are introduced.7 pages, LaTeX; the talk given at the 24-th International Colloquium "Group Theoretical Methods in Physics" ICGTMP-24 (Paris, July. 14-21, 2002)Quantum AlgebraMathematical PhysicsRepresentation Theorytext