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Main Authors: Cidre-Díaz, Ángel, Olmos, Carlos E., Rodríguez-Vázquez, Alberto
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2605.27585
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author Cidre-Díaz, Ángel
Olmos, Carlos E.
Rodríguez-Vázquez, Alberto
author_facet Cidre-Díaz, Ángel
Olmos, Carlos E.
Rodríguez-Vázquez, Alberto
contents We develop new tools to compute the index of symmetry in the context of homogeneous fibrations. As a consequence of our results, we determine the index of symmetry of every homogeneous space diffeomorphic to a compact rank-one symmetric space, and of every homogeneous $S^1$-bundle over a compact irreducible symmetric space. Moreover, we construct irreducible homogeneous metrics whose leaves of symmetry are symmetric spaces of arbitrarily large rank.
format Preprint
id arxiv_https___arxiv_org_abs_2605_27585
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle The index of symmetry and homogeneous fibrations
Cidre-Díaz, Ángel
Olmos, Carlos E.
Rodríguez-Vázquez, Alberto
Differential Geometry
53C30, 53C35
We develop new tools to compute the index of symmetry in the context of homogeneous fibrations. As a consequence of our results, we determine the index of symmetry of every homogeneous space diffeomorphic to a compact rank-one symmetric space, and of every homogeneous $S^1$-bundle over a compact irreducible symmetric space. Moreover, we construct irreducible homogeneous metrics whose leaves of symmetry are symmetric spaces of arbitrarily large rank.
title The index of symmetry and homogeneous fibrations
topic Differential Geometry
53C30, 53C35
url https://arxiv.org/abs/2605.27585