Parallel and totally umbilical hypersurfaces of the four-dimensional Thurston geometry $\text{Sol}^4_0$

Fuente: arXiv
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Main Authors: D'haene, Marie, Inoguchi, Jun-ichi, Van der Veken, Joeri
Format: Preprint
Published: 2023
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author D'haene, Marie
Inoguchi, Jun-ichi
Van der Veken, Joeri
author_facet D'haene, Marie
Inoguchi, Jun-ichi
Van der Veken, Joeri
contents We study hypersurfaces of the four-dimensional Thurston geometry $\text{Sol}^4_0$, which is a Riemannian homogeneous space and a solvable Lie group. In particular, we give a full classification of hypersurfaces whose second fundamental form is a Codazzi tensor, including totally geodesic hypersurfaces and hypersurfaces with parallel second fundamental form, and of totally umbilical hypersurfaces of $\text{Sol}^4_0$. We also give a closed expression for the Riemann curvature tensor of $\text{Sol}^4_0$, using two integrable complex structures.
format Preprint
id arxiv_https___arxiv_org_abs_2303_14105
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Parallel and totally umbilical hypersurfaces of the four-dimensional Thurston geometry $\text{Sol}^4_0$
D'haene, Marie
Inoguchi, Jun-ichi
Van der Veken, Joeri
Differential Geometry
Primary 53C42, Secondary 53C30
We study hypersurfaces of the four-dimensional Thurston geometry $\text{Sol}^4_0$, which is a Riemannian homogeneous space and a solvable Lie group. In particular, we give a full classification of hypersurfaces whose second fundamental form is a Codazzi tensor, including totally geodesic hypersurfaces and hypersurfaces with parallel second fundamental form, and of totally umbilical hypersurfaces of $\text{Sol}^4_0$. We also give a closed expression for the Riemann curvature tensor of $\text{Sol}^4_0$, using two integrable complex structures.
title Parallel and totally umbilical hypersurfaces of the four-dimensional Thurston geometry $\text{Sol}^4_0$
topic Differential Geometry
Primary 53C42, Secondary 53C30
url https://arxiv.org/abs/2303.14105