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We provide a classification of Einstein submanifolds in space forms with flat normal bundle and parallel mean curvature. This extends a previous result due to Dajczer and Tojeiro for isometric immersions of Riemannian manifolds with…

Differential Geometry · Mathematics 2017-12-18 Christos-Raent Onti

A well-known result asserts that any isometric immersion with flat normal bundle of a Riemannian manifold with constant sectional curvature into a space form is (at least locally) holonomic. In this note, we show that this conclusion…

Differential Geometry · Mathematics 2017-12-18 M. Dajczer , C. -R. Onti , Th. Vlachos

Let the warped product $M^n=L^m\times_\varphi F^{n-m}$, $n\geq m+3\geq 8$, of Riemannian manifolds be an Einstein manifold with Ricci curvature $\rho$ that admits an isometric immersion into Euclidean space with codimension two. Under the…

Differential Geometry · Mathematics 2022-10-19 M. Dajczer , C. -R. Onti , Th. Vlachos

In this paper, we study the doubly warped product manifolds with semisymmetric metric connection. We derive the curvatures formulas for doubly warped product manifold with semi-symmetric metric connection in terms of curvatures of…

Differential Geometry · Mathematics 2020-08-05 Punam Gupta , Abdoul Salam Diallo

We classify isometric immersions $f\colon M^{n}\to \mathbb{R}^{n+p}$, $n \geq 5$ and $2p \leq n$, with constant Moebius curvature and flat normal bundle.

Differential Geometry · Mathematics 2023-09-04 M. S. R. Antas , R. Tojeiro

We study pseudo-Riemannian Einstein manifolds which are conformally equivalent with a metric product of two pseudo-Riemannian manifolds. Particularly interesting is the case where one of these manifolds is 1-dimensional and the case where…

Differential Geometry · Mathematics 2016-07-13 Wolfgang Kühnel , Hans-Bert Rademacher

A submanifold in space forms is isoparametric if the normal bundle is flat and principal curvatures along any parallel normal fields are constant. We study the mean curvature flow with initial data an isoparametric submanifold in Euclidean…

Differential Geometry · Mathematics 2019-12-02 Xiaobo Liu , Chuu-Lian Terng

Suppose M_t is a smooth family of compact connected two dimensional submanifolds of Euclidean space E^3 without boundary varying isometrically in their induced Riemannian metrics. Then we show that the mean curvature integrals over M_t are…

Differential Geometry · Mathematics 2009-09-25 Frederic J. Almgren , Igor Rivin

This paper is devoted to the first systematic investigation of manifolds that are Einstein for a connection with skew symmetric torsion. We derive the Einstein equation from a variational principle and prove that, for parallel torsion, any…

Differential Geometry · Mathematics 2022-10-07 Ilka Agricola , Ana Cristina Ferreira

In this paper, we first study isometric immersions $f: M^n\rightarrow M^{n+k}(c), n\geq 3,$ into space forms with flat normal bundle and constant scalar curvature $R.$ Under a suitable multiplicity condition on the second fundamental form…

Differential Geometry · Mathematics 2026-03-24 H. A. Gururaja

A submanifold of a pseudo-Riemannian manifold is said to have parallel mean curvature vector if the mean curvature vector field H is parallel as a section of the normal bundle. Submanifolds with parallel mean curvature vector are important…

Differential Geometry · Mathematics 2013-07-02 Bang-Yen Chen

We show that flatness of the normal bundle is preserved under the mean curvature flow in the Euclidean space and use this to generalize a classical result for hypersurfaces due to Ecker-Huisken in the case of submanifolds with arbitrary…

Differential Geometry · Mathematics 2007-05-23 Knut Smoczyk , Guofang Wang , Y. L. Xin

In this paper, we study the Einstein multiply warped products with a semi-symmetric non-metric connection and the multiply warped products with a semi-symmetric non-metric connection with constant scalar curvature, we apply our results to…

Differential Geometry · Mathematics 2014-07-29 Yong Wang

We consider Einstein hypersurfaces of warped products $I\times_\omega\mathbb Q_\epsilon^n,$ where $I\subset\mathbb R$ is an open interval and $\mathbb Q_\epsilon^n$ is the simply connected space form of dimension $n\ge 2$ and constant…

Differential Geometry · Mathematics 2022-09-26 Ronaldo F. de Lima , Fernando Manfio , João P. dos Santos

We survey different classification results for surfaces with parallel mean curvature immersed into some Riemannian homogeneous four-manifolds, including real and complex space forms, and product spaces. We provide a common framework for…

Differential Geometry · Mathematics 2018-03-20 José M. Manzano , Francisco Torralbo , Joeri Van der Veken

In this article, we study constant mean curvature isometric immersions into $\mathbb{S}^2 \times \mathbb{R}$ and $\mathbb{H}^2 \times \mathbb{R}$ and we classify these isometric immersions when the surface has constant intrinsic curvature.…

Differential Geometry · Mathematics 2019-12-02 Benoît Daniel , Iury Domingos , Feliciano Vitório

In this paper, we investigate Einstein hypersurfaces of the warped product $I\times_{f}\mathbb{Q}^{n}(c)$, where $\mathbb{Q}^{n}(c)$ is a space form of curvature $c$. We prove that $M$ has at most three distinct principal curvatures and…

Differential Geometry · Mathematics 2022-02-18 Valter Borges , Adam da Silva

Minimal surfaces and Einstein manifolds are among the most natural structures in differential geometry. Whilst minimal surfaces are well understood, Einstein manifolds remain far less so. This exposition synthesises together a set of…

Differential Geometry · Mathematics 2025-08-19 Mia Beard

In this paper we study warped product Einstein metrics over spaces with constant scalar curvature. We call such a manifold rigid if the universal cover of the base is Einstein or is isometric to a product of Einstein manifolds. When the…

Differential Geometry · Mathematics 2010-12-16 Chenxu He , Peter Petersen , William Wylie

In [SW2], we defined a generalized mean curvature vector field on any almost Lagrangian submanifold with respect to a torsion connection on an almost K\"ahler manifold. The short time existence of the corresponding parabolic flow was…

Differential Geometry · Mathematics 2016-04-12 Knut Smoczyk , Mao-Pei Tsui , Mu-Tao Wang
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