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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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48 results for CMC hypersurface

No proper biharmonic CMC compact hypersurface in a specific warped product space.

problem Existence of proper biharmonic CMC hypersurfaces in a warped product space.
method Finding necessary and sufficient conditions for proper biharmonic CMC hypersurfaces in a special warped product space.
result No proper biharmonic CMC compact hypersurface exists in the specified space.

We study the constant mean curvature (CMC) hypersurfaces in hyperbolic space whose asymptotic boundaries are closed codimension-1 submanifolds in sphere at infinity. We consider CMC hypersurfaces as generalizations of minimal hypersurfaces. We naturally generalize some notions of minimal hypersurfaces like being area m…

2005-08-17abs ↗pdf ↗

The paper constructs all cmc hypersurfaces with two principal curvatures.

problem Finding all hypersurfaces with constant mean curvature and two principal curvatures.
method Explicit immersions and parameter analysis for hypersurfaces in space forms.
result The family of cmc hypersurfaces with two principal curvatures depends on two parameters, H and C.

The paper proves that for a given metric, there exists another metric where the number of constant mean curvature hypersurfaces increases.

problem Existence of multiple constant mean curvature hypersurfaces for varying Riemannian metrics.
method Proves the existence of a new metric such that the number of cCMCc-CMC hypersurfaces increases.
result There exists a metric hh such that the number of cCMCc-CMC hypersurfaces in (M,h)(M,h) is strictly greater than in (M,g)(M,g).

The paper proves properties of triharmonic CMC hypersurfaces with specific curvature conditions.

problem Characterizing triharmonic CMC hypersurfaces with distinct principal curvatures.
method Analyzing critical points of the tri-energy and applying geometric properties.
result Proves conditions for constant scalar curvature and minimality of hypersurfaces.

The paper studies triharmonic hypersurfaces in space forms and proves their properties.

problem Characterizing triharmonic hypersurfaces in different space forms.
method Analyzing hypersurfaces in spheres, hyperbolic spaces, and Euclidean spaces using CMC (constant mean curvature) and triharmonic properties.
result Properties of triharmonic hypersurfaces in Euclidean space, including minimality.

The paper extends radius estimates for stable hypersurfaces in 2, 3, and 4 dimensions.

problem Estimating the radius of nearly stable hypersurfaces in specific dimensions.
method Generalizing existing radius estimates for CMC hypersurfaces in Riemannian manifolds with bounded curvature.
result Radius estimates for nearly stable hypersurfaces in 2, 3, and 4 dimensions are extended.

The paper proves properties of triharmonic CMC hypersurfaces with limited curvature types.

problem Characterizing triharmonic CMC hypersurfaces with specific curvature constraints.
method Analyzing critical points of the triharmonic energy and applying geometric inequalities.
result Proves constant scalar curvature for triharmonic CMC hypersurfaces with at most 3 distinct principal curvatures.

Study finds non-CMC biconservative hypersurfaces in spheres, proving their existence but not embeddability.

problem Characterizing and proving the existence of non-CMC biconservative hypersurfaces in spheres.
method Analyzing pp-elastic curves of profile curves of biconservative rotational hypersurfaces in space forms.
result Existence of a discrete biparametric family of non-CMC closed biconservative hypersurfaces in Sn(ρ)\mathbb{S}^n(ρ), none of which can be embedded.

The paper classifies CMC free boundary hypersurfaces in rotational domains.

problem Existence and uniqueness of free boundary constant mean curvature hypersurfaces in rotational domains.
method Classification and construction of CMC free boundary hypersurfaces under specific conditions.
result Classification of CMC free boundary hypersurfaces as topological disks or annuli.

It is known that the totally umbilical hypersurfaces in the (n+1)-dimensional spheres are characterized as the only hypersurfaces with weak stability index 0. That is, a compact hypersurface with constant mean curvature, cmc, in S^{n+1}, different from an Euclidean sphere, must have stability index greater than or equa…

2012-02-09abs ↗pdf ↗

We prove that any regular domain in Minkowski space is uniquely foliated by spacelike constant mean curvature (CMC) hypersurfaces. This completes the classification of entire spacelike CMC hypersurfaces in Minkowski space initiated by Choi and Treibergs. As an application, we prove that any entire surface of constant G…

2019-12-11abs ↗pdf ↗

In this paper we give the precise index growth for the embedded hypersurfaces of revolution with constant mean curvature (cmc) 1 in Rn\R^{n} (Delaunay unduloids). When n=3n=3, using the asymptotics result of Korevaar, Kusner and Solomon, we derive an explicit asymptotic index growth rate for finite topology cmc 1 surfac…

2000-11-07abs ↗pdf ↗

The paper bounds eigenvalues of the Jacobi operator and derives rigidity results for CMC hypersurfaces.

problem Bounding the first eigenvalue of the Jacobi operator for CMC hypersurfaces.
method Geometric upper bounds for eigenvalues and rigidity results.
result New rigidity results for the area and length of CMC hypersurfaces.

Let (Mn+1,g)(M^{n+1},g) be a closed Riemannian manifold, n+13n+1\geq 3. We will prove that for all mNm \in \mathbb{N}, there exists c(m)>0c^{*}(m)>0, which depends on gg, such that if 0<c<c(m)0<c<c^{*}(m), (M,g)(M,g) contains at least mm many closed cc-CMC hypersurfaces with optimal regularity. More quantitatively, there exists a consta…

2019-10-02abs ↗pdf ↗

Study proves upper semicontinuity of index plus nullity for minimal and H-CMC hypersurfaces.

problem Proving upper semicontinuity of index plus nullity for minimal and H-CMC hypersurfaces.
method Analyzing a weighted eigenvalue problem and using a Lorentz-Sobolev inequality to study eigenfunctions and index/nullity in neck regions.
result Upper semicontinuity of index plus nullity for minimal and H-CMC hypersurfaces proved.

Constructs CMC hypersurfaces in S^4 from piecewise-smooth unions of spheres.

problem Creating smooth CMC hypersurfaces from piecewise-smooth unions of spheres.
method Gluing totally umbilical 3-spheres to specific Clifford hypersurfaces, forming a smooth one-parameter family of CMC hypersurfaces.
result Desingularization of piecewise-smooth hypersurfaces yields smooth CMC hypersurfaces with embedded and non-embedded types.

The paper studies the stability of volume and area preserving mean curvature flows in Schwarzschild and asymptotic Schwarzschild spaces.

problem Investigating the stability of mean curvature flows in specific spacetime geometries.
method Combining center manifold analysis with global existence results for flows near isoperimetric hypersurfaces.
result Global existence and convergence to constant mean curvature (CMC) hypersurfaces for flows in asymptotic Schwarzschild space.

We study deformations of free boundary constant mean curvature (CMC) hypersurfaces whose Jacobi operator is degenerate due to symmetries of the ambient space. The value of the mean curvature and the ambient metric are allowed to vary simultaneously, provided that the infinitesimal ambient symmetries change smoothly. We…

2014-11-03abs ↗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.

In this paper, we develop a min-max theory for the construction of constant mean curvature (CMC) hypersurfaces of prescribed mean curvature in an arbitrary closed manifold. As a corollary, we prove the existence of a nontrivial, smooth, closed, almost embedded, CMC hypersurface of any given mean curvature cc. Moreover…

2017-07-25abs ↗pdf ↗

Study CMC hypersurfaces in H2imesH2\mathbb{H}^2 imes\mathbb{H}^2 with a specific symmetry.

problem Constant mean curvature hypersurfaces with double horocyclic symmetry in H2imesH2\mathbb{H}^2 imes\mathbb{H}^2.
method Reduction to a single ODE, solving explicitly, classifying solutions.
result Existence and uniqueness of double horocyclic CMC hypersurfaces.

Study on free-boundary CMC hypersurfaces in upper hemisphere, proving Morse index and eigenvalue bounds.

problem Analyzing the Morse index and eigenvalues of free-boundary CMC hypersurfaces in the upper hemisphere.
method Proved results using the norm squared of the second fundamental form and eigenvalue estimates.
result Proved bounds on Morse index and eigenvalues for free-boundary CMC hypersurfaces.

New method improves curvature estimates for stable surfaces.

problem Curvature estimates for stable surfaces in Rn+1\mathbb{R}^{n+1}.
method Replacing Young's inequality with Hölder's inequality simplifies and improves curvature estimates.
result The new method yields a strictly smaller constant and a natural extension to CMC settings.

In this paper we consider smooth oriented hypersurfaces in 2-step nilpotent Lie groups with a left invariant metric and derive an expression for the Laplacian of the Gauss map for such hypersurfaces in the general case and in some particular cases. In the case of CMC-hypersurface in the (2m+1)-dimensional Heisenberg gr…

2008-03-14abs ↗pdf ↗

The paper proves the existence of embedded hypersurfaces of constant mean curvature in manifolds with positive Ricci curvature.

problem Proving the existence of embedded hypersurfaces of constant mean curvature in manifolds with positive Ricci curvature.
method Using the Allen--Cahn min-max scheme with a non-zero constant prescribing function.
result The existence of embedded, closed λ-CMC hypersurfaces with Morse index 1 for any prescribed non-zero constant λ.

Given a vector field XX in a Riemannian manifold, a hypersurface is said to have a canonical principal direction relative to XX if the projection of XX onto the tangent space of the hypersurface gives a principal direction. We give different ways for building these hypersurfaces, as well as a number of useful charac…

2011-10-10abs ↗pdf ↗