Fernández, MarisaMuñoz, VicenteSánchez, Jonatan2023-06-172023-06-172019https://hdl.handle.net/20.500.14352/13198We study the formality of the total space of principal SU(2) and SO(3)bundles over a Wolf space, that is a symmetric positive quaternionic K¨ahler manifold. We apply this to conclude that all the 3-Sasakian homogeneous spaces are formal. We also determine the principal SU(2) and SO(3)-bundles over the Wolf spaces whose total space is non-formal.spajournal articleopen access514.73-Sasakian homogeneous spaces3-sphere bundlesWolf spacesformalityMassey products.Geometría diferencialTopología1204.04 Geometría Diferencial1210 Topología