2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/79894Trigonometric non-isospectral flows are defined for KP hierarchy. It is demonstrated that symmetry constraints of KP hierarchy associated with these flows give rise to trigonometric Calogero-Moser system.15 pages, LaTeX, the talk at a Nato Advanced Research Workshop ``Integrable Hierarchies and Modern Physical Theories'' (NATO ARW-UIC 2000)Exactly Solvable and Integrable Systemstext