2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/153828The nature of the BA function and its adjoint for KP-Toda is traced through the averaging method in generating the Whitham equations, differentials, and symplectic forms, with connections to EM duality.Latex, 12 pagesExactly Solvable and Integrable SystemsHigh Energy Physics - Theorytext