2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/77023We classify the irreducible modules for the fixed point vertex operator subebra of the rank 1 free bosonic VOA under the -1 automorphism.Latex 2e, 24 pages, several mistakes are correctedQuantum AlgebraClassification of irreducible modules for the vertex operator algebra M(1)^+text