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Related papers: Embedded tori with prescribed mean curvature

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We construct for every connected surface $S$ of finite negative Euler characteristic and every $H \in [0,1)$, a hyperbolic 3-manifold $N(S,H)$ of finite volume and a proper, two-sided, totally umbilic embedding $f\colon S\to N(S,H)$ with…

Differential Geometry · Mathematics 2020-07-10 Colin Adams , William H. Meeks , Alvaro K. Ramos

We study singularities of surfaces which are given by Kenmotsu-type formula with prescribed unbounded mean curvature.

Differential Geometry · Mathematics 2019-04-10 Luciana F. Martins , Kentaro Saji , Keisuke Teramoto

In this paper we study the geometry of complete constant mean curvature (CMC) hypersurfaces immersed in an (n + 1)-dimensional Riemannian manifold N (n = 2, 3 and 4) with sectional curvatures uniformly bounded from below. We generalise…

Differential Geometry · Mathematics 2025-01-07 Giuseppe Tinaglia , Alex Zhou

We write down estimates for the surface area, and more generally, integral mean curvatures of an ellipsoid E in n-dimensional Euclidean space in terms of the lengths of the major semi-axes. We give applications to estimating the area of…

Metric Geometry · Mathematics 2007-05-23 Igor Rivin

We give explicit origami embeddings of a 2-dimensional flat torus of any modulus in the 3-dimensional Euclidean space.

Geometric Topology · Mathematics 2020-07-15 Takashi Tsuboi

We prove the existence of (branched) conformal immersions F: S^2 -> R^3 with mean curvature H > 0 arbitrarily prescribed up to a 3-dimensional affine indeterminacy. A similar result is proved for the space forms S^3, H^3 and partial results…

Differential Geometry · Mathematics 2012-04-25 Michael T Anderson

For any prescribed closed subset of a line segment in Euclidean 3-space, we construct a sequence of minimal disks that are properly embedded in an open solid cylinder around the segment and that have curvatures blowing up precisely at the…

Differential Geometry · Mathematics 2013-04-02 David Hoffman , Brian White

We obtain improved local well-posedness results for the Lorentzian timelike minimal surface equation. In dimension $d=3$, for a surface of arbitrary co-dimension, we show a gain of $1/3$ derivative regularity compared to a generic equation…

Analysis of PDEs · Mathematics 2025-04-03 Georgios Moschidis , Igor Rodnianski

We study geometric properties of the Lagrangian self-shrinking tori in $\mathbb R^4$. When the area is bounded above uniformly, we prove that the entropy for the Lagrangian self-shrinking tori can only take finitely many values; this is…

Differential Geometry · Mathematics 2016-04-27 Jingyi Chen , John Man Shun Ma

We classify curvature-adapted real hypersurfaces $M$ of non-flat quaternionic space forms $\mathbb HP^m$ and $\mathbb HH^m$ that are of Chen type 2 in an appropriately defined (pseudo) Euclidean space of quaternion-Hermitian matrices, where…

Differential Geometry · Mathematics 2024-08-01 Ivko Dimitric

This paper is devoted to the classification of embeddings of higher dimensional manifolds. We study the case of embeddings $S^p\times S^q\to S^m$, which we call knotted tori. The set of knotted tori in the the space of sufficiently high…

Geometric Topology · Mathematics 2008-04-01 M. Cencelj , D. Repovš , M. Skopenkov

We prove index estimates for closed and free boundary CMC surfaces in certain $3$-dimensional submanifolds of some Euclidean space. When the mean curvature is large enough we are able to prove that the index of a CMC surface in an arbitrary…

Differential Geometry · Mathematics 2019-01-30 Nicolau S. Aiex , Han Hong

A gap in the proof prevents us to show that surfaces with constant mean curvature closed to 1/2 in H2 X R and having boundary with curvature greater than one, contained in a horizontal section P of H2 X R are topological disks, provided…

Differential Geometry · Mathematics 2019-10-29 Vlad Moraru , Barbara Nelli

The normal map given by Birkhoff orthogonality yields extensions of principal, Gaussian and mean curvatures to surfaces immersed in three-dimensional spaces whose geometry is given by an arbitrary norm and which are also called Minkowski…

Differential Geometry · Mathematics 2018-05-08 Vitor Balestro , Horst Martini , Ralph Teixeira

Let F be a closed orientable surface. We give an explicit formula for the number mod 2 of quadruple points occurring in any generic regular homotopy between any two regularly homotopic embeddings e,e':F -> R^3. The formula is in terms of…

Geometric Topology · Mathematics 2007-05-23 Tahl Nowik

We consider constant mean curvature surfaces (invariant by a continuous group of isometries) lying at bounded distance from a horizontal geodesic on any homogeneous $3$-manifold $\mathbb{E}(\kappa,\tau)$ with isometry group of dimension…

Differential Geometry · Mathematics 2024-07-23 José M. Manzano

In this work we perform a general study of properties of a class of locally symmetric embedded hypersurfaces in spacetimes admitting a $1+1+2$ spacetime decomposition. The hypersurfaces are given by specifying the form of the Ricci tensor…

General Relativity and Quantum Cosmology · Physics 2022-04-06 Abbas M Sherif , Peter K S Dunsby , Rituparno Goswami

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 preliminary report studies immersed surfaces of constant mean curvature in $H^3$ through their {\it adjusted Gauss maps} (as harmonic maps in $S^2$) and their {\it adjusted frames} in SU(2). Lawson's correspondence between Euclidean…

Differential Geometry · Mathematics 2007-05-23 Magdalena Toda

We demonstrate the existence of branched immersed 2-spheres with prescribed mean curvature, with controlled Morse index and with arbitrary codimensions in closed Riemannian manifold $N$ admitting finite fundamental group, where $\pi_k(N)…

Differential Geometry · Mathematics 2024-07-17 Rui Gao , Miaomiao Zhu