2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/94449We show that the system of the standard one-component KP hierarchy endowed with a special infinite set of abelian additional symmetries, generated by squared eigenfunction potentials, is equivalent to the two-component KP hierarchy.LaTeX, 9 pgs., contribution to Festschrift for A.H. ZimermanExactly Solvable and Integrable SystemsHigh Energy Physics - Theorytext