Abstract
We investigate the curvature of invariant metrics on G-manifolds with finitely many non-principal orbits. We prove existence results for metrics of positive Ricci curvature, and discuss some families of examples to which these existence results apply. In fact, many of our examples also admit invariant metrics of non-negative sectional curvature.
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Bechtluft-Sachs, S., Wraith, D.J. On the curvature on G-manifolds with finitely many non-principal orbits. Geom Dedicata 162, 109–128 (2013). https://doi.org/10.1007/s10711-012-9719-z
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DOI: https://doi.org/10.1007/s10711-012-9719-z