2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54013Dispersionless Hirota type equations are extracted from the dispersionless limit of the Fay differential identity due to Takasaki- Takebe. A few other results are sketched between inverse scattering, dKdV, and gravity.10 pages, latex (need only run once)High Energy Physics - Theorytext