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We classify all of real hypersurfaces $M$ with Reeb invariant shape operator in complex hyperbolic two-plane Grassmannians $SU_{2,m}/S(U_2{\cdot}U_m)$, $m \geq 2$. Then it becomes a tube over a totally geodesic…

Differential Geometry · Mathematics 2014-10-23 Hyunjin Lee , Mi Jung Kim , Young Jin Suh

We prove existence of thick geodesic triangulations of hyperbolic 3-manifolds and use this to prove existence of universal bounds on the principal curvatures of surfaces embedded in hyperbolic 3-manifolds.

Geometric Topology · Mathematics 2010-11-23 William Breslin

We prove that general helices in Euclidean space for Killing vector fields associated to rotations are helices, that is, curves with constant curvature and constant torsion. In hyperbolic space $\h^3$, we obtain the parametrization of…

Differential Geometry · Mathematics 2025-07-18 Rafael López

We give a complete classification of isoparametric hypersurfaces in a product space $M^2_{\kappa_1}\times M^2_{\kappa_2}$ of $2$-dimensional space forms for $\kappa_i\in \{-1,0,1\}$ with $\kappa_1\neq \kappa_2$. In fact we prove that any…

Differential Geometry · Mathematics 2023-09-28 Dong Gao , Hui Ma , Zeke Yao

In this article we consider surfaces in the product space $\h^2\times \r$ of the hyperbolic plane $\h^2$ with the real line. The main results are: a description of some geometric properties of minimal graphs; new examples of complete…

Differential Geometry · Mathematics 2007-05-23 Stefano Montaldo , Irene I. Onnis

There exist four non-equivalent types of the translation hypersurfaces in the 4-dimensional isotropic space $\mathbb{I}^{4}$ generated by translating the curves lying in perpendicular $k-$planes $\left(k=2,3\right)$, due to its absolute…

Differential Geometry · Mathematics 2017-11-27 Muhittin Evren Aydin , Alper Osman Ogrenmis

We classify and describe totally geodesic and parallel hypersurfaces for the entire class of Siklos spacetimes. A large class of minimal hypersurfaces is also described.

Differential Geometry · Mathematics 2023-11-01 Giovanni Calvaruso , Lorenzo Pellegrino , Joeri Van der Veken

We study hypersurfaces either in the sphere \s{n+1} or in the hyperbolic space \h{n+1} whose position vector $x$ satisfies the condition $L_kx=Ax+b$, where $L_k$ is the linearized operator of the $(k+1)$-th mean curvature of the…

Differential Geometry · Mathematics 2009-08-26 Luis J. Alias , S. M. B. Kashani

We classify minimal extrinsically homogeneous submanifolds of complex hyperbolic spaces.

Differential Geometry · Mathematics 2026-05-12 Ángel Cidre-Díaz , Miguel Domínguez-Vázquez

We show first that a generic hypersurface $V$ of degree $d\geq 3$ in the complex projective space $ \mathbb{P}^n$ of dimension $n \geq 3$ has at least one hyperplane section $V \cap H$ containing exactly $n$ ordinary double points, alias…

Algebraic Geometry · Mathematics 2023-10-17 Alexandru Dimca , Giovanna Ilardi

We consider curvature flows in hyperbolic space with a monotone, symmetric, homogeneous of degree 1 curvature function F. Furthermore we assume F to be either concave and inverse concave or convex. For compact initial hypersurfaces, which…

Differential Geometry · Mathematics 2012-08-10 Matthias Makowski

We introduce the shifted inverse curvature flow in hyperbolic space. This is a family of hypersurfaces in hyperbolic space expanding by $F^{-p}$ with positive power $p$ for a smooth, symmetric, strictly increasing and $1$-homogeneous…

Differential Geometry · Mathematics 2023-02-03 Xianfeng Wang , Yong Wei , Tailong Zhou

We study rotational hypersurfaces with constant Gauss-Kronecker curvature. We solve the ODE for the generating curves of such hypersurfaces and analyze several geometric properties of such hypersurfaces. In particular, we discover a class…

Differential Geometry · Mathematics 2022-01-20 Yuhang Liu , Yunchu Dai

In this paper we classify a kind of special Calabi hypersurfaces with negative constant sectional curvature in Calabi affine geometry. Meanwhile, we find a class of new Euclidean complete and Calabi complete affine hypersurfaces, which…

Differential Geometry · Mathematics 2025-04-23 Yalin Sun , Ruiwei Xu

We provide normal forms for singularities of analytic hypersurfaces in $({\mathbb C}^n,0)$, using holomorphic vector fields.

Complex Variables · Mathematics 2023-01-06 Pedro Fortuny Ayuso

We show the existence of constant mean curvature surfaces in the homology classes of closed 3-manifolds.

Differential Geometry · Mathematics 2020-01-03 Baris Coskunuzer

Given an initial $C^1$ hypersurface and a time-dependent vector field in a Sobolev space, we prove a time-global existence of a family of hypersurfaces which start from the given hypersurface and which move by the velocity equal to the mean…

Differential Geometry · Mathematics 2016-06-02 Keisuke Takasao , Yoshihiro Tonegawa

In our previous works we have classified real non-singular cubic hypersurfaces in the 5-dimensional projective space up to equivalence that includes both real projective transformations and continuous variations of coefficients preserving…

Algebraic Geometry · Mathematics 2020-03-10 Sergey Finashin , Viatcheslav Kharlamov

In this paper, we prove a classification for complete embedded constant weighted mean curvature hypersurfaces $\Sigma\subset\mathbb{R}^{n+1}$. We characterize the hyperplanes and generalized round cylinders by using an intrinsic property on…

Differential Geometry · Mathematics 2019-12-10 Saul Ancari , Igor Miranda

In this paper, we classify the class of constant weighted curvature curves in the plane with a log-linear density, or in other words, classify all traveling curved fronts with a constant forcing term in $\Bbb R^2.$ The classification gives…

Differential Geometry · Mathematics 2013-12-31 Doan The Hieu , Tran Le Nam