English

Half plane geometries

Differential Geometry 2023-03-30 v4

Abstract

In this paper, we endow the right half plane with warped product metrics. The group of holomorphic isometries of all such metrics is isomorphic to the real additive group. Of our interest are two of those metrics: they have zero and unbounded negative sectional curvature, respectively, and both of them are not complete.

Keywords

Cite

@article{arxiv.2111.07569,
  title  = {Half plane geometries},
  author = {Ioannis D. Platis and Li-Jie Sun},
  journal= {arXiv preprint arXiv:2111.07569},
  year   = {2023}
}

Comments

Completely rewritten paper. Several errors have been corrected

R2 v1 2026-06-24T07:38:20.572Z