English

Some problems on ruled hypersurfaces in nonflat complex space forms

Differential Geometry 2020-02-06 v1

Abstract

We study ruled real hypersurfaces whose shape operators have constant squared norm in nonflat complex space forms. In particular, we prove the nonexistence of such hypersurfaces in the projective case. We also show that biharmonic ruled real hypersurfaces in nonflat complex space forms are minimal, which provides their classification due to a known result of Lohnherr and Reckziegel.

Keywords

Cite

@article{arxiv.2002.01907,
  title  = {Some problems on ruled hypersurfaces in nonflat complex space forms},
  author = {Olga Perez-Barral},
  journal= {arXiv preprint arXiv:2002.01907},
  year   = {2020}
}

Comments

11 pages

R2 v1 2026-06-23T13:32:12.350Z