Geometries with parallel, skew-symmetric and closed torsion

Fuente: arXiv
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Main Authors: Moroianu, Andrei, Schwahn, Paul
Format: Preprint
Published: 2026
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author Moroianu, Andrei
Schwahn, Paul
author_facet Moroianu, Andrei
Schwahn, Paul
contents We study Riemannian manifolds carrying a metric connection with parallel, skew-symmetric and closed torsion, which we call in short PSCT manifolds. We prove that PSCT manifolds always locally split into a product of well-understood factors, allowing a complete local classification. Further, we investigate various $G$-structures of PSCT type, with a focus on almost Hermitian structures and their possible Gray--Hervella classes.
format Preprint
id arxiv_https___arxiv_org_abs_2605_13227
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Geometries with parallel, skew-symmetric and closed torsion
Moroianu, Andrei
Schwahn, Paul
Differential Geometry
53B05, 53C10, 53C15, 53C25
We study Riemannian manifolds carrying a metric connection with parallel, skew-symmetric and closed torsion, which we call in short PSCT manifolds. We prove that PSCT manifolds always locally split into a product of well-understood factors, allowing a complete local classification. Further, we investigate various $G$-structures of PSCT type, with a focus on almost Hermitian structures and their possible Gray--Hervella classes.
title Geometries with parallel, skew-symmetric and closed torsion
topic Differential Geometry
53B05, 53C10, 53C15, 53C25
url https://arxiv.org/abs/2605.13227