Revisiting 3-Sasakian and -structures
arXiv:2412.19525 · doi:10.1007/978-3-031-92297-8_13
Abstract
The algebra of exterior differential forms on a regular 3-Sasakian 7-manifold is investigated, with special reference to nearly-parallel 3-forms. This is applied to the study of 3-forms invariant under cohomogeneity-one actions by on the 7-sphere and on Berger's space .
21 pages