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We solve the Cauchy-Dirichlet problem for the minimal surface system in arbitrary dimension and codimension assuming a condition on the variation of the initial submanifold .

Analysis of PDEs · Mathematics 2007-05-23 Mu-Tao Wang

We prove that Nash mapping is bijective for any algebraic surface defined over an algebraically closed field of characteristic 0.

Algebraic Geometry · Mathematics 2011-02-23 Javier Fernandez de Bobadilla , Maria Pe Pereira

In this paper we study nodal deformations of singular surfaces $S\subset \mathbb P^3$. In particular we consider the case in which $S$ has an isolated singularity of multiplicity $m$ and the case in which $S$ has only ordinary singularities…

Algebraic Geometry · Mathematics 2026-02-27 Ciro Ciliberto , Concettina Galati

We address the issue of binary classification in Banach spaces in presence of uncertainty. We show that a number of results from classical support vector machines theory can be appropriately generalised to their robust counterpart in Banach…

Machine Learning · Statistics 2022-02-18 Mohammed Sbihi , Nicolas Couellan

Beyond normal surfaces there are several open questions concerning 2- dimensional spaces. We present some results and conjectures along this line.

Algebraic Geometry · Mathematics 2014-05-16 Mihai Tibar

We shall investigate flat surfaces in hyperbolic 3-space with admissible singularities, called `flat fronts'. An Osserman-type inequality for complete flat fronts is shown. When equality holds in this inequality, we show that all the ends…

Differential Geometry · Mathematics 2007-05-23 Masatoshi Kokubu , Masaaki Umehara , Kotaro Yamada

We explore the practicability of Nash's Embedding Theorem in vision and imaging sciences. In particular, we investigate the relevance of a result of Burago and Zalgaller regarding the existence of isometric embeddings of polyhedral surfaces…

Computer Vision and Pattern Recognition · Computer Science 2010-05-12 Emil Saucan

We study isometric embeddings of some solutions of the Einstein equations with suffciently high symmetries into a flat ambient space. We briefly describe a method for constructing surfaces with a given symmetry. We discuss all minimal…

General Relativity and Quantum Cosmology · Physics 2013-06-21 S. A. Paston , A. A. Sheykin

We state an open problem in the theory of diversities: what is the worst case minimal distortion embedding of a diversity on $n$ points in $\ell_1$. This problem is the diversity analogue of a famous problem in metric geometry: what is the…

Metric Geometry · Mathematics 2017-12-07 David Bryant , Paul Tupper

In this paper, we study the Dirichlet problem for a class of prescribed curvature equations in Minkowski space. We prove the existence of smooth spacelike hypersurfaces with a class of prescribed curvature and general boundary data based on…

Analysis of PDEs · Mathematics 2024-09-06 Mengru Guo , Heming Jiao

We prove a compactness theorem for metrics with Bounded Integral Curvature on a fixed closed surface $\Sigma$. As a corollary, we obtain a compactification of the space of Riemannian metrics with conical singularities, where an accumulation…

Differential Geometry · Mathematics 2016-10-20 Clément Debin

We consider the focusing cubic NLS in the exterior $\Omega$ of a smooth, compact, strictly convex obstacle in three dimensions. We prove that the threshold for global existence and scattering is the same as for the problem posed on…

Analysis of PDEs · Mathematics 2015-01-22 Rowan Killip , Monica Visan , Xiaoyi Zhang

We give a description of the equisingularity of a family of normal surface singularities by numerical invariants belonging to them. By equisingularity we mean Whitney regularity or a more restrictive condition using the Nash modification.

Algebraic Geometry · Mathematics 2016-12-30 Achim Hennings

The main purposes of this paper are (1) To survey the area of coarse embeddability of metric spaces into Banach spaces, and, in particular, coarse embeddability of different Banach spaces into each other; (2) To present new results on the…

Functional Analysis · Mathematics 2009-03-23 M. I. Ostrovskii

In this paper both we establish the best constants for the Nash inequalities on the standard unit sphere $\mathbb{S}^n$ of $\mathbb{R}^{n+1}$ and we give answers on the existence of extremal functions on the corresponding problems. Also we…

Functional Analysis · Mathematics 2012-02-07 Athanase Cotsiolis , Nikos Labropoulos

We prove that the 3-D free-surface incompressible Euler equations with regular initial geometries and velocity fields have solutions which can form a finite-time "splash" (or "splat") singularity first introduced in [9], wherein the…

Analysis of PDEs · Mathematics 2015-06-03 Daniel Coutand , Steve Shkoller

Author of this article created for the first time the method for finding solutions of the Minkowski problem for closed surfaces in Riemannian space.

Differential Geometry · Mathematics 2007-09-04 Andrei I. Bodrenko

We study smoothness of generalized solutions of nonlocal elliptic problems in plane bounded domains with piecewise smooth boundary. The case where the support of nonlocal terms can intersect the boundary is considered. We announce…

Analysis of PDEs · Mathematics 2014-04-22 Pavel Gurevich

The main aim of this thesis is to study the properties of trapped surfaces in spacetimes with symmetries and their possible relation with the theory of black holes. We will concetrate specially on one aspect of this possible equivalence,…

General Relativity and Quantum Cosmology · Physics 2015-03-20 Alberto Carrasco Ferreira

In this paper, we study the exterior problem for the maximal surface equation. We obtain the precise asymptotic behavior of the exterior solution at infinity. And we prove that the exterior Dirichlet problem is uniquely solvable given…

Analysis of PDEs · Mathematics 2020-01-17 Guanghao Hong , Yu Yuan