2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/153875We develop a formalism of multicomponent BKP hierarchies using elementary geometry of spinors. The multicomponent KP and the modified KP hierarchy (hence all their reductions like KdV, NLS, AKNS or DS) are reductions of the multicomponent BKP.46 pages, Latex2eExactly Solvable and Integrable SystemsHigh Energy Physics - TheoryQuantum Algebratext