2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/179405Direct evaluation of the Seiberg-Witten prepotential is accomplished following the localization programme suggested some time ago. Our results agree with all low-instanton calculations available in the literature. We present a two-parameter generalization of the Seiberg-Witten prepotential, which is rather natural from the M-theory/five dimensional perspective, and conjecture its relation to the tau-functions of KP/Toda hierarchy.harvmac 31 ppHigh Energy Physics - Theorytext