English

Four-dimensional pp-wave Lie groups and harmonic curvature

Differential Geometry 2026-02-10 v1

Abstract

We determine all four-dimensional Lie groups which have harmonic curvature. As a consequence, a description of four-dimensional pp-wave Lie groups is obtained.

Cite

@article{arxiv.2602.08650,
  title  = {Four-dimensional pp-wave Lie groups and harmonic curvature},
  author = {Eduardo García-Río and Rosalía Rodríguez-Gigirey and Ramón Vázquez-Lorenzo},
  journal= {arXiv preprint arXiv:2602.08650},
  year   = {2026}
}
R2 v1 2026-07-01T10:27:54.377Z