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We consider the problem of determining a polyhedral conductivity inclusion embedded in a homogeneous isotropic medium from boundary measurements. We prove global Lipschitz stability for the polyhedral inclusion from the local…

Analysis of PDEs · Mathematics 2022-07-07 Andrea Aspri , Elena Beretta , Elisa Francini , Sergio Vessella

Isoradial embeddings of planar graphs play a crucial role in the study of several models of statistical mechanics, such as the Ising and dimer models. Kenyon and Schlenker give a combinatorial characterization of planar graphs admitting an…

Combinatorics · Mathematics 2021-10-06 Cédric Boutillier , David Cimasoni , Béatrice de Tilière

We show that for an isometric immersion of a complete Riemannian manifold into a Riemannian manifold with non-positive curvature, the norm of the mean curvature vector field is square integrable, then it is minimal. This is a partial…

Differential Geometry · Mathematics 2012-02-01 Nobumitsu Nakauchi , Hajime Urakawa

There are several Teichm\"uller spaces associated to a surface of infinite topological type, after the choice of a particular basepoint (a complex or a hyperbolic structure on the surface). These spaces include the quasiconformal…

Geometric Topology · Mathematics 2018-09-25 Daniele Alessandrini , Lixin Liu , Athanase Papadopoulos , Weixu Su

In this paper, we investigate geometric conditions for isometric immersions with positive index of relative nullity to be cylinders. There is an abundance of noncylindrical $n$-dimensional minimal submanifolds with index of relative nullity…

Differential Geometry · Mathematics 2020-04-30 A. E. Kanellopoulou , Th. Vlachos

We explore the relation among volume, curvature and properness of a $m$-dimensional isometric immersion in a Riemannian manifold. We show that, when the $L^p$-norm of the mean curvature vector is bounded for some $m \leq p\leq \infty$, and…

Differential Geometry · Mathematics 2015-04-02 Vicent Gimeno , Vicente Palmer

We study isometric embeddings of a Euclidean space or a Heisenberg group into a higher dimensional Heisenberg group, where both the source and target space are equipped with an arbitrary left-invariant homogeneous distance that is not…

Metric Geometry · Mathematics 2017-11-27 Zoltán M. Balogh , Katrin Fässler , Hernando Sobrino

We study isometric embeddings of $C^2$ Riemannian manifolds in the Euclidean space and we establish that the H\"older space $C^{1,\frac{1}{2}}$ is critical in a suitable sense: in particular we prove that for $\alpha > \frac{1}{2}$ the…

Analysis of PDEs · Mathematics 2019-02-15 Camillo De Lellis , Dominik Inauen

We consider the problem of reconstructing an embedding of a compact connected Riemannian manifold in a Euclidean space up to an almost isometry, given the information on intrinsic distances between points from its ``sufficiently large''…

Optimization and Control · Mathematics 2024-01-26 Nikita Puchkin , Vladimir Spokoiny , Eugene Stepanov , Dario Trevisan

We will investigate the local geometry of the surfaces in the $7$-dimensional Euclidean space associated to harmonic maps from a Riemann surface $\Sigma$ into $S^6$. By applying methods based on the use of harmonic sequences, we will…

Differential Geometry · Mathematics 2017-07-12 Pedro Morais , Rui Pacheco

We present a numerical method for solving Weyl's embedding problem which consists of finding a global isometric embedding of a positively curved and positive-definite spherical 2-metric into the Euclidean three space. The method is based on…

General Relativity and Quantum Cosmology · Physics 2015-06-03 Michael Jasiulek , Mikolaj Korzynski

Graph embeddings deal with injective maps from a given simple, undirected graph $G=(V,E)$ into a metric space, such as $\mathbb{R}^n$ with the Euclidean metric. This concept is widely studied in computer science, see \cite{ge1}, but also…

Combinatorics · Mathematics 2022-05-04 Dominic van der Zypen

We give a new proof of a theorem of Loos stating that a Riemannian symmetric space X with rectangular unit lattice is a symmetric R-space. For this we construct explicitly an isometric extrinsically symmetric embedding of X in a Euclidean…

Differential Geometry · Mathematics 2025-09-22 Jost-Hinrich Eschenburg , Ernst Heintze , Peter Quast

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…

Differential Geometry · Mathematics 2019-06-24 Nícolas A. de Andrade , Luquesio P. Jorge

The rigidity of the Positive Mass Theorem states that the only complete asymptotically flat manifold of nonnegative scalar curvature and zero mass is Euclidean space. We study the stability of this statement for spaces that can be realized…

Differential Geometry · Mathematics 2015-05-26 Lan-Hsuan Huang , Dan A. Lee , Christina Sormani

In this paper, for an immersion $f$ of an $n$-dimensional Riemannian manifold $M$ into $(n+d)$-Euclidean space we give a sufficient condition on $f$ so that, in case $d\leq 5$, any immersion $g$ of $M$ into $(n+d+1)$-Euclidean space that…

Differential Geometry · Mathematics 2013-12-24 Sérgio Luiz Silva

In this article we introduce conformal Riemannian morphisms. The idea of conformal Riemannian morphism generalizes the notions of an isometric immersion, a Riemannian submersion, an isometry, a Riemannian map and a conformal Riemannian map.…

Differential Geometry · Mathematics 2023-05-12 RB Yadav , Srikanth KV

We suggest a method to search the embeddings of Riemannian spaces with a high enough symmetry in a flat ambient space. It is based on a procedure of construction surfaces with a given symmetry. The method is used to classify the embeddings…

General Relativity and Quantum Cosmology · Physics 2012-04-23 S. A. Paston , A. A. Sheykin

Representing graphs as sets of node embeddings in certain curved Riemannian manifolds has recently gained momentum in machine learning due to their desirable geometric inductive biases, e.g., hierarchical structures benefit from hyperbolic…

Machine Learning · Computer Science 2020-06-09 Calin Cruceru , Gary Bécigneul , Octavian-Eugen Ganea

A holomorphic curve in moduli spaces is the image of a non-constant holomorphic map from a hyperbolic surface $B$ of type $(g,n)$ to the moduli space $\mathcal{M}_h$ of closed Riemann surfaces of genus $h$. We show that, when all peripheral…

Geometric Topology · Mathematics 2025-09-15 Yibo Zhang