2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/126209The main point of the construction of spin Calogero type classical integrable systems based on dynamical r-matrices, developed by L.-C. Li and P. Xu, is reviewed. It is shown that non-Abelian dynamical r-matrices with variables in a reductive Lie algebra ${\cal F}$ and their Abelian counterparts with variables in a Cartan subalgebra of ${\cal F}$ lead essentially to the same models.Based on talk by L.F. at Symposium QTS-4, Varna (Bulgaria), August 2005; 12 pages, a remark is added and a reference is updated in v2Mathematical PhysicsHigh Energy Physics - TheoryExactly Solvable and Integrable Systemstext