2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/64535Let M(1) be the vertex algebra for a single free boson. We classify irreducible modules of certain vertex subalgebras of M(1) generated by two generators. These subalgebras correspond to the W(2, 2p-1)--algebras with central charge $1- 6 \frac{(p - 1) ^{2}}{p}$ where p is a positive integer, $p \ge 2$. We also determine the associated Zhu's algebras.21 pages, LatexQuantum Algebra17B69; 17B68text