2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/88059Let L be a positive definite even lattice of rank one and V_L^+ be the fixed points of the lattice VOA V_L associated to L under an automorphism of V_L lifting the -1$ isometry of L. A set of generators and the full automorphism group of V_L^+ are determined.Latex, 15 pages, final version for publication in J. AlgebraQuantum Algebratext