On SO(3)-bundles over the Wolf spaces

We 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 t...

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Detalles Bibliográficos
Autores: Fernández, Marisa, Muñoz, Vicente, Sánchez, Jonatan
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:español
OAI Identifier:oai:docta.ucm.es:20.500.14352/13198
Acceso en línea:https://hdl.handle.net/20.500.14352/13198
Access Level:acceso abierto
Palabra clave:514.7
3-Sasakian homogeneous spaces
3-sphere bundles
Wolf spaces
formality
Massey products.
Geometría diferencial
Topología
1204.04 Geometría Diferencial
1210 Topología
Descripción
Sumario:We 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.