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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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48 results for Schwarzschild spaces

Study finds new minimal surfaces in Schwarzschild space.

problem Existence of non-totally geodesic minimal surfaces in Schwarzschild space.
method Family of properly embedded free boundary minimal hypersurfaces of revolution.
result Existence of new minimal surfaces with circular boundaries in Schwarzschild space.

Paper extends foliation results in higher dimensions for Schwarzschild spaces.

problem Existence of foliations by constant harmonic mean curvature hypersurfaces in asymptotically Schwarzschild manifolds.
method Generalization to higher dimensions, proving existence under arbitrary dimensionality.
result Existence of foliations by constant harmonic mean curvature hypersurfaces in asymptotically Schwarzschild manifolds of arbitrary dimension.

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.

The paper proves the stability of a flow in Schwarzschild space.

problem Stability of area preserving mean curvature flow in asymptotic Schwarzschild space.
method Demonstrates existence and exponential convergence of the flow for all time.
result The flow converges to a round sphere or a constant mean curvature surface.

The paper studies constant harmonic mean curvature surfaces in Schwarzschild spaces, proving they foliate the space.

problem Investigating constant harmonic mean curvature surfaces in Schwarzschild spaces.
method Volume-preserving harmonic mean curvature flow in asymptotically Schwarzschild spaces.
result These surfaces form a foliation of the space outside a large ball.

Stability of Schwarzschild singularity in near-Schwarzschild black holes under perturbations.

problem Stability of the Schwarzschild singularity in near-Schwarzschild black holes.
method Energy methods and new approach to Einstein vacuum equations in axial symmetry.
result The solution displays asymptocially-velocity-term-dominated dynamics and approaches a different Kasner solution at each point of the singularity.

Building upon the work of Brendle, Marques and Neves on the construction of counterexamples to Min-Oo's conjecture, we exhibit deformations of the de Sitter-Schwarzschild space of dimension n3n\geq 3 satisfying the dominant energy condition and agreeing with the standard metric along the event and cosmological horizons…

2014-11-06abs ↗pdf ↗

Proves stability of Schwarzschild black holes without symmetry assumptions.

problem Stability of Schwarzschild black holes under general conditions.
method Teleologically normalised double null gauges, analysis of linear stability, and control of non-linearities.
result Proves non-linear asymptotic stability of Schwarzschild family as solutions to Einstein vacuum equations.

Scattering theory for linearised gravity on Schwarzschild black hole exterior.

problem Constructing a scattering theory for linearised gravity equations on Schwarzschild background.
method Building on previous work, constructing Hilbert space-isomorphisms for finite energy initial data and scattering states.
result Past and future linear memories are related by an antipodal map for Bondi-normalised solutions.

In this note we address the problem of finding Abelian instantons of finite energy on the Euclidean Schwarzschild manifold. This amounts to construct self-dual L^2 harmonic 2-forms on the space. Gibbons found a non-topological L^2 harmonic form in the Taub-NUT metric, leading to Abelian instantons with continuous energ…

2000-03-27abs ↗pdf ↗

We find necessary and sufficient conditions for existence of a locally isometric embedding of a vacuum space-time into a conformally-flat 5-space. We explicitly construct such embeddings for any spherically symmetric Lorentzian metric in 3+13+1 dimensions as a hypersurface in R4,1R^{4, 1}. For the Schwarzschild metric the…

2018-12-13abs ↗pdf ↗

Study linear perturbations in Schwarzschild black hole spacetime.

problem Linear perturbations of Schwarzschild black hole spacetime.
method Investigate linearised perturbation of constant mass aspect function foliation at null infinity.
result Linearised perturbations of Bondi energy and mass vanish, and all linear momentum can be achieved.

Scattering theory developed for linearised gravity near Schwarzschild black hole.

problem Linear stability of Schwarzschild spacetime and scattering of gravitational waves.
method Physical-space Chandrasekhar transformation and Teukolsky-Starobinsky correspondence.
result Construction of scattering theory for spin 2 Teukolsky equations.

Extends Hopf's theorem to de Sitter-Schwarzschild and Reissner-Nordstrom manifolds.

problem Finding constant mean curvature surfaces in specific spacetimes.
method Partial differential equations in the complex plane, generalizing holomorphy.
result Extends Hopf's theorem to new spacetime geometries.

Local well-posedness proved for Bartnik static extension near Schwarzschild spheres.

problem Proving well-posedness for the Bartnik static extension problem near Schwarzschild spheres.
method Introduced a geodesic gauge to formulate governing equations as coupled elliptic and transport equations; used Bochner-measurable functions for transport equations.
result Established local well-posedness for arbitrary Bartnik data near Schwarzschild spheres, including those with small mean curvature.

Study on static manifolds with boundary and rigidity of curvature.

problem Understanding the rigidity of scalar curvature and mean curvature on manifolds with boundary.
method Analyzing maps of scalar curvature in the interior and mean curvature on the boundary, discussing geometric properties of static manifolds.
result Classification and rigidity theorems for simple non-generic domains in space forms and Schwarzschild manifold.

Existence proved for static vacuum extensions near Schwarzschild spheres.

problem Proving existence of static vacuum extensions near Schwarzschild spheres.
method Existence and local uniqueness of static vacuum extensions for Bartnik data on a sphere near a Schwarzschild sphere.
result Existence of static vacuum extensions near Schwarzschild spheres.

Proves a Minkowski inequality for star-shaped hypersurfaces in warped cylinders.

problem Proving a Minkowski inequality for specific types of hypersurfaces.
method Using weakly mean convex and star-shaped hypersurfaces in warped cylinders, and applying the inverse mean curvature flow.
result Sharp inequality holds for outward minimizing hypersurfaces in Schwarzschild and hyperbolic spaces.

The study finds regular null hypersurfaces in a perturbed Schwarzschild black hole exterior.

problem Existence of regular null hypersurfaces in a perturbed Schwarzschild black hole.
method Proof of existence for null hypersurfaces in a perturbed Schwarzschild spacetime.
result Existence of many foliations by regular null hypersurfaces in the exterior region of a perturbed Schwarzschild black hole.

Study on free boundary minimal hypersurfaces in Schwarzschild space, proving zero Morse index for certain hypersurfaces.

problem Analyzing free boundary minimal hypersurfaces in the Riemannian Schwarzschild space.
method Variational methods and geometric analysis.
result Zero Morse index for certain free boundary rotationally symmetric totally geodesic hypersurfaces in the Riemannian Schwarzschild space.

Study on minimal hypersurfaces in Schwarzschild manifolds intersecting the horizon orthogonally.

problem Behavior of minimal hypersurfaces in Schwarzschild manifolds intersecting the horizon orthogonally.
method Analysis of free boundary minimal hypersurfaces and totally geodesic hyperplanes in Schwarzschild nn-manifolds.
result A free boundary minimal hypersurface and a totally geodesic hyperplane must intersect when the distance between them is achieved in a bounded region.

Higher-dimensional Schwarzschild spacetimes violate the Penrose property.

problem Causal behavior of higher-dimensional Schwarzschild spacetimes.
method Analyzing causal properties in (2+1)(2+1), (3+1)(3+1), and (d+1)(d+1) dimensions.
result The Penrose property does not hold for (d+1)(d+1) dimensional Schwarzschild if d>3d>3.

Schwarzschild 3-manifold stability proven for 3D Penrose inequality.

problem Stability of the Schwarzschild 3-manifold in the context of the 3D Riemannian Penrose inequality.
method Pointed measured Gromov-Hausdorff topology, negligible domains and boundary area perturbations.
result Schwarzschild 3-manifold stability proven for 3D Penrose inequality.

Global existence and geometry of constant mass aspect function foliation in perturbed Schwarzschild spacetime studied.

problem Null Penrose inequality on a null hypersurface.
method Global existence of constant mass aspect function foliation on a nearly spherically symmetric incoming null hypersurface in a vacuum perturbed Schwarzschild spacetime.
result Geometry of the constant mass aspect function foliation compared to the spherically symmetric foliation in the Schwarzschild spacetime.

Motivated by the quasi-local mass problem in general relativity, we study the rigidity of isometric immersions with the same mean curvature into a warped product space. As a corollary of our main result, two star-shaped hypersurfaces in a spatial Schwarzschild or AdS-Schwarzschild manifold with nonzero mass differ only…

2018-02-12abs ↗pdf ↗

Study on spacelike submanifolds in generalized Schwarzschild spacetimes with lightlike foliations.

problem Characterizing spacelike submanifolds in generalized Schwarzschild spacetimes.
method Analyzing submanifolds under lightlike foliations and using explicit formulas for mean curvature.
result Derived characterizations of slices and specific cases like Schwarzschild and Reissner-Nordström spacetimes.

The first irreducible solution of the SU(2)\mathrm{SU} (2) self-duality equations on the Euclidean Schwarzschild (ES) manifold was found by Charap and Duff in 1977, only 2 years later than the famous BPST instantons on R4\mathbb{R}^4 were discovered. While soon after, in 1978, the ADHM construction gave a complete descrip…

2017-10-31abs ↗pdf ↗

The Minkowski inequality is a classical inequality in differential geometry, giving a bound from below, on the total mean curvature of a convex surface in Euclidean space, in terms of its area. Recently there has been interest in proving versions of this inequality for manifolds other than R^n; for example, such an ine…

2017-09-19abs ↗pdf ↗

The paper examines stability of Minkowski inequalities in warped product spaces.

problem Stability of Minkowski-type inequalities for hypersurfaces in warped product spaces.
method Established a stability estimate for the norm of the traceless second fundamental form.
result Proved stability of Minkowski inequalities in specific warped product examples.

Paper defines semi-quasi-Einstein manifolds and applies to Schwarzschild and Kottler spacetimes.

problem Defining and studying semi-quasi-Einstein manifolds.
method Introduced from a semi symmetric metric connection, analyzed with curvature conditions and Killing generators.
result Schwarzschild and Kottler spacetimes exhibit semi-quasi-Einstein structure.

Establishes a Penrose-type inequality for static spacetimes.

problem Finding a lower bound on the total mass of static spacetimes.
method Analyzes (n+1)-dimensional asymptotically flat standard static spacetimes under timelike convergence condition.
result Extends Penrose-type inequalities to all dimensions and characterizes equality conditions.