Resumen: In this paper, we give a method to construct Heegaard splittings of oriented graph manifolds with orientable bases. A graph manifold is a closed 3-manifold admitting only Seifert-fibered pieces in its Jaco–Shalen–Johansson decomposition; for technical reasons, we restrict our attention to the fully oriented case, i.e., when both the pieces and the bases are oriented. Idioma: Inglés DOI: 10.1007/s10231-018-0795-z Año: 2019 Publicado en: Annali di Matematica Pura ed Applicata 2019, 198 (2019), 727–747 ISSN: 0373-3114 Factor impacto JCR: 0.959 (2019) Categ. JCR: MATHEMATICS rank: 119 / 323 = 0.368 (2019) - Q2 - T2 Categ. JCR: MATHEMATICS, APPLIED rank: 166 / 260 = 0.638 (2019) - Q3 - T2 Factor impacto SCIMAGO: 1.281 - Applied Mathematics (Q1)