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We construct examples of inhomogeneous isoparametric real hypersurfaces in complex hyperbolic spaces.

Differential Geometry · Mathematics 2010-11-24 J. Carlos Diaz-Ramos , Miguel Dominguez-Vazquez

We classify all real hypersurfaces with constant principal curvatures in the complex hyperbolic plane.

Differential Geometry · Mathematics 2007-05-23 Jurgen Berndt , Jose Carlos Diaz-Ramos

Isoparametric hypersurfaces and their application to special geometries

Differential Geometry · Mathematics 2009-06-11 Firouz Khezri

We classify all real hypersurfaces with three distinct constant principal curvatures in complex hyperbolic spaces of dimension greater than two.

Differential Geometry · Mathematics 2007-05-23 Jurgen Berndt , Jose Carlos Diaz-Ramos

We classify minimal extrinsically homogeneous submanifolds of complex hyperbolic spaces.

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

We study the geometry of homogeneous hypersurfaces and their focal sets in complex hyperbolic spaces. In particular, we provide a characterization of the focal set in terms of its second fundamental form and determine the principal…

Differential Geometry · Mathematics 2007-05-23 Jurgen Berndt , Jose Carlos Diaz-Ramos

We classify polar actions on complex hyperbolic spaces up to orbit equivalence.

Differential Geometry · Mathematics 2017-03-22 J. Carlos Diaz-Ramos , Miguel Dominguez-Vazquez , Andreas Kollross

We introduce curvature-adapted foliations of complex hyperbolic space and study some of their properties. Generalized pseudo-Einstein hypersurfaces of complex hyperbolic space are classified. Analogous results for curvature-adapted…

Differential Geometry · Mathematics 2012-07-10 Thomas Murphy

We classify isoparametric hypersurfaces in spheres with $(g,m)=(6,1)$ and thereby reprove a result of Dorfmeister and Neher.

Differential Geometry · Mathematics 2015-08-06 Anna Siffert

A Lie hypersurface in the complex hyperbolic space is an orbit of a cohomogeneity one action without singular orbit. In this paper, we classify Ricci soliton Lie hypersurfaces in the complex hyperbolic spaces.

Differential Geometry · Mathematics 2013-05-28 Takahiro Hashinaga , Akira Kubo , Hiroshi Tamaru

We classify the isoparametric hypersurfaces and the homogeneous hypersurfaces of $\mathbb H^n\times\mathbb R$ and $\mathbb S^n\times\mathbb R$, $n\ge 2$, by establishing that any such hypersurface has constant angle function and constant…

Differential Geometry · Mathematics 2025-11-04 Ronaldo F. de Lima , Giuseppe Pipoli

This paper introduces the notion of $k$-isoparametric hypersurface in an $(n+1)$-dimensional Riemannian manifold for $k=0,1,...,n$. Many fundamental and interesting results (towards the classification of homogeneous hypersurfaces among…

Differential Geometry · Mathematics 2013-12-19 Jianquan Ge , Zizhou Tang , Wenjiao Yan

A holomorphic representation formula for special parabolic hyperspheres is given.

Differential Geometry · Mathematics 2007-05-23 Vicente Cortes

In this paper, we introduce isoparametric functions and isoparametric hypersurfaces in conic Finsler spaces. We find that in a conic Minkowski space, besides the conic Minkowski hyperplanes, conic Minkowski hyperspheres and conic Minkowski…

Differential Geometry · Mathematics 2022-03-23 Qun He , Xin Huang , Peilong Dong

We conclude the classification of cohomogeneity one actions on symmetric spaces of rank one by classifying cohomogeneity one actions on quaternionic hyperbolic spaces up to orbit equivalence. As a by-product of our proof, we produce…

Differential Geometry · Mathematics 2020-05-20 Jose Carlos Diaz-Ramos , Miguel Dominguez-Vazquez , Alberto Rodriguez-Vazquez

In this paper, we study hypersurfaces in $\mathbb{H}^2\times\mathbb{H}^2$. We first classify the hypersurfaces with constant principal curvatures and constant product angle function. Then, we classify homogeneous hypersurfaces and…

Differential Geometry · Mathematics 2023-03-17 Dong Gao , Hui Ma , Zeke Yao

We give a geometric characterization of certain hypersurfaces of cohomogeneity one in the complex projective and hyperbolic planes. We also obtain some partial classifications of austere hypersurfaces and of Levi-flat hypersurfaces with…

Differential Geometry · Mathematics 2016-09-08 Jose Carlos Diaz-Ramos , Miguel Dominguez-Vazquez , Cristina Vidal-Castiñeira

We classify the non-degenerate homogeneous hypersurfaces in real and complex affine four-space whose symmetry group is at least four-dimensional.

Differential Geometry · Mathematics 2007-05-23 Michael Eastwood , Vladimir Ezhov

We find sharp upper bounds on the order of the automorphism group of a hypersurface in complex projective space in every dimension and degree. In each case, we prove that the hypersurface realizing the upper bound is unique up to…

Algebraic Geometry · Mathematics 2024-11-28 Louis Esser , Jennifer Li

We classify, up to isometric congruence, the homogeneous hypersurfaces in the Riemannian symmetric spaces $\mathrm{SL}(3,\mathbb{H})/\mathrm{Sp}(3), \hspace{1pt} \mathrm{SO}(5,\mathbb{C})/\mathrm{SO}(5),$ and…

Differential Geometry · Mathematics 2025-03-14 Ivan Solonenko
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