2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/209468In this paper, we derive the virtual structure constants used in mirror computation of degree k hypersurface in CP^{N-1}, by using localization computation applied to moduli space of polynomial maps from CP^{1} to CP^{N-1} with two marked points. We also apply this technique to non-nef local geometry O(1)+O(-3)->CP^{1} and realize mirror computation without using Birkhoff factorization.10 pages, latex, a minor change in Section 4, English is refined, Some typing errors in Section 3 are correctedAlgebraic GeometryHigh Energy Physics - Theory14N35, 32G20text