English
Related papers

Related papers: A note on closed isometric embeddings

200 papers

This note is intended as a brief introduction to the theory and practice of perfectly matched layer (PML) absorbing boundaries for wave equations, originally developed for MIT courses 18.369 and 18.336. It focuses on the complex…

Computational Engineering, Finance, and Science · Computer Science 2021-08-12 Steven G. Johnson

Two of the main open problems in the theory of contact loci are the arc-Floer conjecture, which states that the compactly supported cohomology of the restricted $m$-contact locus and the fixed-point Floer cohomology of the $m$-th iterate of…

Algebraic Geometry · Mathematics 2025-06-24 Eduardo de Lorenzo Poza , Jiahui Huang

The purpose is to make an easy-to-understand note of "Special Topics in Finite Element Methods." There might be typos and mistakes. Therefore, I do not take any responsibility for unauthorised use.

Numerical Analysis · Mathematics 2024-03-19 Hiroki Ishizaka

A systematic study of the contributions at infinity for the cohomology of variations of polarized Hodge structures over quasicompact K\"ahler manifolds. Several isomorphisms between different cohomologies given.

Algebraic Geometry · Mathematics 2007-05-23 Juergen Jost , Yihu Yang , Kang Zuo

This paper is devoted to the study of the embeddings of a complex submanifold $S$ inside a larger complex manifold $M$; in particular, we are interested in comparing the embedding of $S$ in $M$ with the embedding of $S$ as the zero section…

Complex Variables · Mathematics 2007-05-23 Marco Abate , Filippo Bracci , Francesca Tovena

The aim of this note is to give an explicit description of quasi-Einstein metrics on $\Bbb{H}^{n}\times \Bbb{R}.$ We shall construct two examples of quasi-Einstein metrics on this manifold and then we shall prove the uniqueness of these…

Differential Geometry · Mathematics 2013-08-05 E. Ribeiro , K. Bezerra

We discuss the possibility of extending different versions of the Campbell-Magaard theorem, which have already been established in the context of semi-Riemannian geometry, to the context of Weyl's geometry. We show that some of the known…

General Relativity and Quantum Cosmology · Physics 2017-01-31 R. Avalos , F. Dahia , C. Romero

Using geometric homology and cohomology we give a simple and conceptual proof of the Thom isomorphism theorem.

Algebraic Topology · Mathematics 2007-05-23 Martin Jakob

Let M be a closed hyperbolic three manifold. We construct closed surfaces which map by immersions into M so that for each one the corresponding mapping on the universal covering spaces is an embedding, or, in other words, the corresponding…

Geometric Topology · Mathematics 2015-03-13 Jeremy Kahn , Vladimir Markovic

In this note we extend a theorem from [13] about uniform circle random coverings

Probability · Mathematics 2025-01-28 D. Karagulyan

Lying at the intersection of Ado's theorem and the Nash embedding theorem, we consider the problem of finding faithful representations of Lie groups which are simultaneously isometric embeddings. Such special maps are found for a certain…

Differential Geometry · Mathematics 2025-06-25 Michael Jablonski

An isometric embedding of a graph into a metric space is an embedding of the vertices such that the smallest number of edges connecting any two vertices equals to the distance in the metric space between the images. In this paper, we study…

Metric Geometry · Mathematics 2018-04-20 Shiquan Ren

We show that, for any given $q\geq 0$, any Sasakian structure on a closed manifold $M$ is approximated in the $C^{q}$-norm by structures induced by CR embeddings into weighted Sasakian spheres. In order to obtain this result, we also…

Differential Geometry · Mathematics 2024-08-27 Andrea Loi , Giovanni Placini

The purpose of this article is to show that on an open and dense set, complete integrability implies the existence of symmetry.

Mathematical Physics · Physics 2015-02-10 Răzvan M. Tudoran

This is a survey article on the recent developments of semipositivity, injectivity, and vanishing theorems for higher-dimensional complex projective varieties.

Algebraic Geometry · Mathematics 2016-09-28 Osamu Fujino

We prove embedding theorems for fully anisotropic Besov spaces. More concrete, inequalities between modulus of continuity in different metrics and of Sobolev type are obtained. Our goal is to get sharp estimates for some anisotropic cases…

Functional Analysis · Mathematics 2007-05-23 F. J. Perez Lazaro

We introduce polar metrics on a product manifold, which have product and warped product metrics as special cases. We prove a de Rham-type theorem characterizing Riemannian manifolds that can be locally decomposed as a product manifold…

Differential Geometry · Mathematics 2013-06-17 Ruy Tojeiro

Let $\Sigma$ be a Riemannian manifold with strictly convex spherical boundary. Assuming absence of conjugate points and that the trapped set is hyperbolic, we show that $\Sigma$ can be isometrically embedded into a closed Riemannian…

Differential Geometry · Mathematics 2023-04-03 Dong Chen , Alena Erchenko , Andrey Gogolev

We begin the study of completeness of affine connections, especially those on statistical manifolds as well as on affine hypersurfaces. We collect basic facts, prove new theorems and provide examples with remarkable properties.

Differential Geometry · Mathematics 2020-03-27 Barbara Opozda

We discuss a variation of Gromov's notion of asymptotic dimension that was introduced and named Nagata dimension by Assouad. The Nagata dimension turns out to be a quasisymmetry invariant of metric spaces. The class of metric spaces with…

Metric Geometry · Mathematics 2007-05-23 Urs Lang , Thilo Schlichenmaier