A local generalisation of frame bundles

Fuente: arXiv
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Autor principal: de Maujouy, Jérémie Pierard
Formato: Preprint
Publicado: 2025
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author de Maujouy, Jérémie Pierard
author_facet de Maujouy, Jérémie Pierard
contents Frame bundles equipped with a principal connection have their local structure characterised by a 1-form, called the Cartan connection 1-form, which gathers the principal connection form and the soldering form. We introduce generalised frame bundles as a smooth manifold equipped with a coframe with value in a suitable Lie algebra and which furthermore satisfies a weakened version of the Maurer-Cartan equation. From this structure it is possible to construct a Lie algebra action on the manifold. We study the question of whether it is possible to construct a Lie group action and build a base manifold over which the initial manifold is a frame bundle. We find that generalised frame bundles can have singular underlying manifolds.
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id arxiv_https___arxiv_org_abs_2509_07749
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A local generalisation of frame bundles
de Maujouy, Jérémie Pierard
Differential Geometry
53C10
Frame bundles equipped with a principal connection have their local structure characterised by a 1-form, called the Cartan connection 1-form, which gathers the principal connection form and the soldering form. We introduce generalised frame bundles as a smooth manifold equipped with a coframe with value in a suitable Lie algebra and which furthermore satisfies a weakened version of the Maurer-Cartan equation. From this structure it is possible to construct a Lie algebra action on the manifold. We study the question of whether it is possible to construct a Lie group action and build a base manifold over which the initial manifold is a frame bundle. We find that generalised frame bundles can have singular underlying manifolds.
title A local generalisation of frame bundles
topic Differential Geometry
53C10
url https://arxiv.org/abs/2509.07749