English

Magnetic unit vector fields

Differential Geometry 2023-02-24 v2

Abstract

We show that a unit vector field on an oriented Riemannian manifold is a critical point of the Landau Hall functional if and only if it is a critical point of the Dirichlet energy functional. Therefore, we provide a characterization for a unit vector field to be a magnetic map into its unit tangent sphere bundle. Then, we classify all magnetic left invariant unit vector fields on 33-dimensional Lie groups.

Keywords

Cite

@article{arxiv.2107.05423,
  title  = {Magnetic unit vector fields},
  author = {Jun-ichi Inoguchi and Marian Ioan Munteanu},
  journal= {arXiv preprint arXiv:2107.05423},
  year   = {2023}
}

Comments

25 pages

R2 v1 2026-06-24T04:06:20.426Z