2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/187213It is shown that the elliptic Ruijsenaars-Schneider model can be obtained from the affine Heisenberg Double by means of the Poisson reduction procedure. The dynamical $r$-matrix naturally appears in the construction.latex, 15 pages, a new section is added where we show that the problem of solving the equations of motion is equivalent to the factorization problemHigh Energy Physics - Theorytext