2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/67839We construct closed $(k-1)$-connected manifolds of dimensions $\ge 4k-1$ that possess non-trivial rational Massey triple products. We also construct examples of manifolds $M$ such that all the cup-products of elements of $H^k(M)$ vanish, while the group $H^{3k-1}(M;\Q)$ is generated by Massey products: such examples are useful for theory of systols.Latex, 4 pages, minor changes in extended versionAlgebraic TopologyGeometric Topology55S30;55P62text