Real hypersurfaces in $Q^m$ with commuting structure Jacobi operator
Differential Geometry
2019-01-24 v2
Abstract
In this paper we study real hypersurfaces in the complex quadric space whose structure Jacobi operator commutes with their structure tensor field. We show that the Reeb curvature of such hypersurfaces is constant and if is non-zero then the hypersurface is a tube around a totally geodesic submanifold , where . We also consider Reeb flat hypersurfaces, namely, when the Reeb curvature is zero. We show that the tube around (), with radius is the only Reeb flat Hopf hypersurface with commuting Ricci tensor and also the only one with commuting shape operator. Finally, we prove that there does not exist any Reeb flat Hopf hypersurfaces with non-parallel Killing Ricci tensor or with Killing shape operator.
Keywords
Cite
@article{arxiv.1807.11021,
title = {Real hypersurfaces in $Q^m$ with commuting structure Jacobi operator},
author = {N. Heidari and S. M. B. Kashani and M. J. Vanaei},
journal= {arXiv preprint arXiv:1807.11021},
year = {2019}
}