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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,695 papers · 148 categories

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17355269 · May 202619922001200920172026
48 results for Euclidean half-space

Solves Christoffel-Minkowski problem for capillary convex bodies in Euclidean half-space.

problem Finding capillary convex bodies with prescribed kk-th capillary area measure.
method Solving a Hessian-type equation with Robin boundary condition.
result Existence and uniqueness of a smooth solution under natural conditions.

The paper solves a specific Minkowski problem for capillary hypersurfaces.

problem Finding capillary convex bodies with prescribed dual curvature measures.
method Reduction to a Monge-Ampère type equation with Robin boundary condition.
result Existence and uniqueness of a smooth solution for θ(0,π2)θ\in (0,\fracπ{2}).

We study stable immersed capillary hypersurfaces in a domain B\mathcal B which is either a half-space or a slab in the Euclidean space Rn+1.\Bbb R^{n+1}. We prove that such a hypersurface ΣΣ is rotationally symmetric in the following cases: (1) n=2n=2, B\mathcal B is a slab and ΣΣ has genus zero, (2) n2n\geq 2, $\mathc…

2014-11-16abs ↗pdf ↗

Study on capillarity minimizers with nonlocal repulsion and gravity, proving existence and nonexistence.

problem Minimizing an energy functional with capillarity, nonlocal repulsion, and gravity.
method Quantitative isoperimetric inequalities applied to capillarity problem in a half-space.
result Existence and nonexistence of minimizers for various nonlocal kernels and masses.

The paper applies a capillary John ellipsoid theorem to solve capillary curvature problems.

problem Solving capillary curvature problems in Euclidean half-spaces.
method Applying a capillary John ellipsoid theorem to derive non-collapsing estimates and gradient estimates.
result Established existence of solutions to capillary curvature problems in certain ranges of pp and qq.

Motivated by a recent work of Ache and Chang concerning the sharp Sobolev trace inequality and Lebedev-Milin inequalities of order four on the Euclidean unit ball, we derive such inequalities on the Euclidean unit ball for higher order derivatives. By using, among other things, the scattering theory on hyperbolic space…

2019-01-13abs ↗pdf ↗

Paper classifies critical points in half-space with new distance function.

problem Classifying critical points in half-space with capillary CMC hypersurfaces.
method New shifted distance function for capillary problem in half-space.
result Proves Alexandrov-type theorem for singular capillary CMC hypersurfaces.

Proves intersection properties of minimal hypersurfaces in various spaces.

problem Intersection properties of minimal hypersurfaces in different geometric settings.
method Two approaches: classifications of stable minimal hypersurfaces and conformal change with comparison geometry.
result Intersection properties for minimal hypersurfaces in specific geometric settings, including free boundary minimal hypersurfaces.

We prove that every finite-volume hyperbolic 3-manifold M with p > 0 cusps admits a canonical, complete, piecewise Euclidean CAT(0) metric, with a canonical projection to a CAT(0) spine K. Moreover, (a) the universal cover of M endowed with the CAT(0) metric is a union of Euclidean half-spaces, glued together by identi…

2010-08-09abs ↗pdf ↗

Paper characterizes umbilical hypersurfaces using a generalized overdetermined problem.

problem Characterizing umbilical hypersurfaces in space forms.
method Using a Serrin-type partially overdetermined problem with inhomogeneous Robin boundary condition.
result Any contact angle θ ∈ (0, π) can be achieved, generalizing previous results.

The article constructs helicoidal and catenoidal minimal surfaces in a Lie group.

problem Constructing minimal surfaces in a specific Lie group.
method Weierstrass-type representation for minimal surfaces in Lie groups of dimension three.
result New proof of a half-space theorem for minimal surfaces in E(2)~\widetilde{E(2)}.

Study proves no minimal surfaces can be contained in certain half-spaces or cones.

problem Prohibiting minimal surfaces from certain geometric configurations.
method Analyzes weighted minimal surfaces in R3\mathbb{R}^3 with height-dependent weights.
result No proper surfaces can be contained in specific half-spaces or cones.

Study on minimal surfaces with free boundary in a half-space, improving index estimates.

problem Non-existence of index two embedded minimal surfaces with free boundary in a half-space.
method Improved estimates of Neumann and Dirichlet indices, simplified proof of lower bounds.
result Answered Ambrozio et al.'s question and provided new lower bounds.

Study sharp inequalities for perimeter functionals in capillarity and convex cones.

problem Quantitative isoperimetric inequalities for perimeter functionals in capillarity and convex cones.
method Derivation of Fuglede-type estimates and application of selection principle.
result Sharp quantitative isoperimetric inequalities in strong and barycentric forms.

Paper solves inequalities for capillary hypersurfaces in half-spaces.

problem Finding inequalities for convex capillary hypersurfaces in half-spaces.
method Introduced quermassintegrals and constructed a new locally constrained curvature flow to prove convergence to spherical caps.
result Obtained Alexandrov-Fenchel inequalities for convex capillary hypersurfaces.

New method for optimization on Hadamard manifolds with curvature-independent guarantees.

problem Curvature-dependent complexity in geodesic convex optimization.
method Introducing horospherical convexity and developing algorithms for optimization.
result Curvature-independent convergence of subgradient descent and Nesterov's method.

A mass-type invariant for smooth metric measure spaces and its relation with the fractional Yamabe problem

problem Defining and analyzing a mass-type invariant for smooth metric measure spaces
method Defining a mass-type quantity and showing its geometric invariance properties
result The mass-type quantity has a close relation with the fractional Yamabe problem and the relevant Green's function

The main result in this paper is that the space of all smooth links in Euclidean 3-space isotopic to the trivial link of n components has the same homotopy type as its finite-dimensional subspace consisting of configurations of n unlinked Euclidean circles (the "rings" in the title). There is also an analogous result f…

2008-05-28abs ↗pdf ↗

Paper analyzes iterative learning for concept classes and learns half-spaces.

problem Learning concept classes efficiently with iterative learners.
method Analyzes various settings of iterative learning and provides a constructive algorithm for half-spaces.
result Constructive iterative algorithm for learning half-spaces from informant.

The paper classifies solutions to a Liouville equation on a half-space with a specific boundary condition.

problem Classifying solutions to a Liouville equation with a nonlinear Neumann boundary condition.
method Analyzing the nn-Laplacian Liouville equation on the half-space R+n\mathbb{R}^{n}_{+} with positive nonlinear Neumann boundary condition.
result The classification of solutions extends previous results for n=2n=2 and p=np=n.

The paper proves inequalities for convex capillary hypersurfaces in a half-space.

problem Proving inequalities for convex capillary hypersurfaces in a half-space.
method Locally constrained inverse curvature flow with spherical cap convergence.
result Proves a complete family of Alexandrov-Fenchel inequalities for convex capillary hypersurfaces.

Inverse metric matrices on Siegel-Jacobi spaces are calculated for Berezin quantization.

problem Calculating inverse metric matrices on Siegel-Jacobi spaces.
method Inversion of metric matrices on XnJ{\mathcal{X}}^J_n and ildeXnJ ilde{\mathcal{X}}^J_n.
result Explicit calculations of inverse metric matrices for n=2n=2.

We investigate the possibility of improving the pp-Poincaré inequality HNupΛpup\|\nabla_{\mathbb{H}^N} u\|_p \ge Λ_p \|u\|_p on the hyperbolic space, where p>2p>2 and Λp:=[(N1)/p]pΛ_p:=[(N-1)/p]^{p} is the best constant for which such inequality holds. We prove several different, and independent, improved inequalities, one of which is …

2016-11-25abs ↗pdf ↗

A 3D catenoid in 4D space is a minimal hypersurface that cannot be extended to a higher-dimensional half-space.

problem Extending the half-space theorem to higher dimensions in R4\mathbb{R}^4.
method Analyzing the topological constraints on minimal hypersurfaces in R4\mathbb{R}^4.
result A complete, properly embedded minimal hypersurface in a slab in R4\mathbb{R}^4 must be a hyperplane.