Resumen: Relations between the symplectically harmonic cohomology and the coeffective cohomology of a symplectic manifold are obtained. This is achieved through a generalization of the latter, which in addition allows us to provide a coeffective version of the filtered cohomologies introduced by Tsai, Tseng and Yau. We construct closed (simply connected) manifolds endowed with a family of symplectic forms ¿t such that the dimensions of these symplectic cohomology groups vary with respect to t. A complete study of these cohomologies is given for 6-dimensional symplectic nilmanifolds, and concrete examples with special cohomological properties are obtained on an 8-dimensional solvmanifold and on 2-step nilmanifolds in higher dimensions. Idioma: Inglés DOI: 10.1007/s10231-018-0819-8 Año: 2019 Publicado en: Annali di Matematica Pura ed Applicata 198 (2019), 1351–1380 ISSN: 0373-3114 Factor impacto JCR: 0.959 (2019) Categ. JCR: MATHEMATICS rank: 119 / 324 = 0.367 (2019) - Q2 - T2 Categ. JCR: MATHEMATICS, APPLIED rank: 166 / 260 = 0.638 (2019) - Q3 - T2 Factor impacto SCIMAGO: 1.281 - Applied Mathematics (Q1)