Higher Covariant Derivative and the Bundle of Dirac Currents
Fuente:
arXiv
Saved in:
| Main Author: | |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866918501494554624 |
|---|---|
| author | Pugh, Harrison |
| author_facet | Pugh, Harrison |
| contents | Using the higher covariant derivative on a manifold $ M $ equipped with a torsion-free connection, we define a natural surjective bundle map $ Φ$ from $ (\otimes(TM))\otimes (\wedge(TM)) $ to the vector bundle $ \mathcal{U}(M) $ of de Rham currents on $ M $ supported in a single (variable) point. The resulting quotient bundle can be thought of as a bundle of generalized Weyl algebras, with the symplectic form replaced with the Riemannian curvature tensor. The fibers of the bundle $ \mathcal{U}(M) $ are differential co-algebras, and the boundary, co-product and co-unit stitch together to form bundle maps which lift via $ Φ$ to commuting bundle maps on $ (\otimes(TM))\otimes (\wedge(TM)) $. Interior product, higher-order covariant differentiation, and their $ L^2 $ adjoints also form bundle maps on $ \mathcal{U}(M) $ which lift via $ Φ$. The higher-order covariant derivative in particular is an $ \mathbb{R} $-algebra representation of the space $ C^\infty(\otimes(TM)) $ equipped with a non-standard, \emph{covariant product}. Its composition with interior product yields a quantization of $ \mathcal{U}(M) $ corresponding to a Hopf-algebraic smash product.
Finitely supported and locally finitely supported sections functors can be applied to $ \mathcal{U}(M) $, yielding the spaces of finitely supported and locally finitely supported currents, respectively. In particular, the finitely supported currents on a smooth manifold are a filtered differential graded co-algebra in duality with differential forms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_21176 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Higher Covariant Derivative and the Bundle of Dirac Currents Pugh, Harrison Differential Geometry Using the higher covariant derivative on a manifold $ M $ equipped with a torsion-free connection, we define a natural surjective bundle map $ Φ$ from $ (\otimes(TM))\otimes (\wedge(TM)) $ to the vector bundle $ \mathcal{U}(M) $ of de Rham currents on $ M $ supported in a single (variable) point. The resulting quotient bundle can be thought of as a bundle of generalized Weyl algebras, with the symplectic form replaced with the Riemannian curvature tensor. The fibers of the bundle $ \mathcal{U}(M) $ are differential co-algebras, and the boundary, co-product and co-unit stitch together to form bundle maps which lift via $ Φ$ to commuting bundle maps on $ (\otimes(TM))\otimes (\wedge(TM)) $. Interior product, higher-order covariant differentiation, and their $ L^2 $ adjoints also form bundle maps on $ \mathcal{U}(M) $ which lift via $ Φ$. The higher-order covariant derivative in particular is an $ \mathbb{R} $-algebra representation of the space $ C^\infty(\otimes(TM)) $ equipped with a non-standard, \emph{covariant product}. Its composition with interior product yields a quantization of $ \mathcal{U}(M) $ corresponding to a Hopf-algebraic smash product. Finitely supported and locally finitely supported sections functors can be applied to $ \mathcal{U}(M) $, yielding the spaces of finitely supported and locally finitely supported currents, respectively. In particular, the finitely supported currents on a smooth manifold are a filtered differential graded co-algebra in duality with differential forms. |
| title | Higher Covariant Derivative and the Bundle of Dirac Currents |
| topic | Differential Geometry |
| url | https://arxiv.org/abs/2604.21176 |