2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/106063We prove a reciprocity formula between Gauss sums that is used in the computation of certain quantum invariants of 3-manifolds. Our proof uses the discriminant construction applied to the tensor product of lattices.6 pagesCommutative AlgebraGeometric Topology11M; 57Mtext