2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/132306In this paper, we show that the quotient space of the domain by the reflection group for an elliptic root system has a structure of Frobenius manifold for the case of codimension 1. We also give a characterization of this Frobenius manifold structure under some suitable condition.23 pages: we simplify a proof of the uniqueness theoremAlgebraic GeometryDifferential Geometry32G20;32N10text