
arXiv: 2202.00417
handle: 2158/1277719 , 2318/1890772
We construct examples of compact homogeneous Riemannian manifolds admitting an invariant Bismut connection that is Ricci flat and non-flat, proving in this way that the generalized Alekseevsky–Kimelfeld theorem does not hold. The classification of compact homogeneous Bismut Ricci flat spaces in dimension$5$is also provided. Moreover, we investigate compact homogeneous spaces with non-trivial third Betti number, and we point out other possible ways to construct Bismut Ricci flat manifolds. Finally, since Bismut Ricci flat connections correspond to fixed points of the generalized Ricci flow, we discuss the stability of some of our examples under the flow.
Mathematics - Differential Geometry, homogeneous spaces, Bismut connection, homogeneous spaces, Ricci flatness, Special connections and metrics on vector bundles (Hermite-Einstein, Yang-Mills), Special Riemannian manifolds (Einstein, Sasakian, etc.), Differential geometry of homogeneous manifolds, Differential Geometry (math.DG), Bismut connection; Ricci flat connection; homogeneous spaces, Ricci flows, Ricci flat connection, FOS: Mathematics, Linear and affine connections, Bismut connection
Mathematics - Differential Geometry, homogeneous spaces, Bismut connection, homogeneous spaces, Ricci flatness, Special connections and metrics on vector bundles (Hermite-Einstein, Yang-Mills), Special Riemannian manifolds (Einstein, Sasakian, etc.), Differential geometry of homogeneous manifolds, Differential Geometry (math.DG), Bismut connection; Ricci flat connection; homogeneous spaces, Ricci flows, Ricci flat connection, FOS: Mathematics, Linear and affine connections, Bismut connection
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 7 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Top 10% |
