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Proceedings of the Royal Society of Edinburgh Section A Mathematics
Article . 2022 . Peer-reviewed
License: CC BY
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Article . 2023
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https://dx.doi.org/10.48550/ar...
Article . 2022
License: arXiv Non-Exclusive Distribution
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Bismut Ricci flat manifolds with symmetries

Authors: Fabio Podestà; Alberto Raffero;

Bismut Ricci flat manifolds with symmetries

Abstract

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.

Country
Italy
Keywords

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

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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).
BIP!Citations provided by BIP!
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.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
7
Top 10%
Average
Top 10%
Green
hybrid