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We characterize all compact embedded stable minimal capillary surfaces with capillary angle close to either $0$ or $\pi$ that are supported on a complete embedded minimal surface with finite total curvature that is not an affine plane.…

微分几何 · 数学 2026-05-13 Michael Eichmair , Thomas Koerber

In this article we extend several foundational results of the theory of complete minimal surfaces of finite index in the Euclidean space to minimal surfaces in asymptotically flat manifolds and, more generally, to marginally outer-trapped…

微分几何 · 数学 2014-04-08 Alessandro Carlotto

In this article, we discuss the existence of a 1-parameter infinite genus family of maxfaces having infinitely many planar (spacelike) ends and infinitely many swallowtails. In particular, we show the existence of the following: (1) a…

微分几何 · 数学 2026-04-21 Anu Dhochak

We obtain an infinite family of complete non embedded rotational surfaces in $\mathbb R^3$ whose second fundamental forms have length equal to one at any point. Also we prove that a complete rotational surface with second fundamental form…

微分几何 · 数学 2018-12-21 Alexandre P. Barreto , Francisco Fontenele , Luiz Hartmann

We present a proof of the generalized Nitsche's conjecture proposed by W.H.Meeks III and H. Rosenberg: For $t\ge 0$, let $P_t$ denote the horizontal plane of height $t$ over the $x_1,x_2$ plane. Suppose that $M \subset R^3$ is a minimal…

dg-ga · 数学 2008-02-03 Qing Chen

We develop the concept of integral Menger curvature for a large class of nonsmooth surfaces. We prove uniform Ahlfors regularity and a $C^{1,\lambda}$-a-priori bound for surfaces for which this functional is finite. In fact, it turns out…

经典分析与常微分方程 · 数学 2010-12-16 Pawel Strzelecki , Heiko von der Mosel

A unifying definition of trapped submanifold for arbitrary codimension by means of its mean curvature vector is presented. Then, the interplay between (generalized) symmetries and trapped submanifolds is studied, proving in particular that…

广义相对论与量子宇宙学 · 物理学 2019-06-25 José M. M. Senovilla

In this work we give a method for constructing a one-parameter family of complete CMC-1 (i.e. constant mean curvature 1) surfaces in hyperbolic 3-space that correspond to a given complete minimal surface with finite total curvature in…

dg-ga · 数学 2008-02-03 Wayne Rossman , Masaaki Umehara , Kotaro Yamada

In this paper, we give a new proof of the splitting theorem on manifolds with nonnegative spectral Ricci curvature proved in [APX24, CMMR24, HW26]. Furthermore, by constructing weighted minimizing geodesics at infinity, we show that minimal…

微分几何 · 数学 2026-05-15 Han Hong , Gaoming Wang

We prove the existence of a one parameter family of minimal embedded hypersurfaces in $R^{n+1}$, for $n \geq 3$, which generalize the well known 2 dimensional "Riemann minimal surfaces". The hypersurfaces we obtain are complete, embedded,…

微分几何 · 数学 2007-05-23 S. Kaabachi , F. Pacard

Surfaces of finite geometric type are complete, immersed into the tree-dimensional Euclidean space with finite total curvature and Gauss map extending to an oriented compact surface as a smooth branched covering map over the unit sphere of…

微分几何 · 数学 2019-06-24 Nícolas A. de Andrade , Luquesio P. Jorge

We show the existence of an infinite collection of hyperbolic knots where each of which has in its exterior meridional essential planar surfaces of arbitrarily large number of boundary components, or, equivalently, that each of these knots…

几何拓扑 · 数学 2021-09-21 João Miguel Nogueira

We construct an infinite family of mutually non-diffeomorphic irreducible smooth structures on the topological 4-manifold $S^2 \times S^2$.

几何拓扑 · 数学 2015-03-17 Anar Akhmedov , B. Doug Park

The aim of this paper is twofold. First of all, we confirm a few basic criteria of the finiteness of real forms of a given smooth complex projective variety, in terms of the Galois cohomology set of the discrete part of the automorphism…

代数几何 · 数学 2023-01-27 Tien-Cuong Dinh , Cécile Gachet , Hsueh-Yung Lin , Keiji Oguiso , Long Wang , Xun Yu

In [CKM17], Chodosh, Ketover, and Maximo proved finite diffeomorphism theorems for complete embedded minimal hypersurfaces of dimension $\leqslant$ 6 with finite index and bounded volume growth ratio. In this paper, we adapt their method to…

微分几何 · 数学 2026-04-10 Qi Ding , Lei Zhang

In this article, we consider surfaces in the 3-dimensional Euclidean space E3 without parabolic points which are of finite II-type, that is, they are of finite type, in the sense of B.-Y. Chen, corresponding to the second fundamental form.…

综合数学 · 数学 2019-02-25 Hassan Al-Zoubi , Amer Dababneh , Waseem Mashaleh , Nancy Ramahi

Starting from works by Scherk (1835) and by Enneper-Weierstra\ss \ (1863), new minimal surfaces with Scherk ends were found only in 1988 by Karcher (see \cite{Karcher1,Karcher}). In the singly periodic case, Karcher's examples of positive…

微分几何 · 数学 2013-08-28 A. J. Yucra Hancco , G. A. Lobos , V. Ramos Batista

We prove the existence of a complete, embedded, singly periodic minimal surface, whose quotient by vertical translations has genus one and two ends. The existence of this surface was announced in our paper in {\it Bulletin of the AMS},…

微分几何 · 数学 2016-09-06 David Hoffman , Hermann Karcher , Fusheng Wei

We derive several vanishing theorems for genera under almost nonnegative Ricci curvature and infinite fundamental group, which includes Todd genus, $\widehat{A}$-genus, elliptic genera and Witten genus. A vanishing theorem of Euler…

微分几何 · 数学 2022-09-27 Xiaoyang Chen , Jian Ge , Fei Han

It is conjectured that there exist finitely many isomorphism classes of simple endomorphism algebras of abelian varieties of GL_2-type over \Q of bounded dimension. We explore this conjecture when particularized to quaternion endomorphism…

数论 · 数学 2011-11-10 Nils Bruin , E. Victor Flynn , Josep Gonzalez , Victor Rotger