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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.

169,051 papers · 148 categories

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78157235313 · Jun 202019922001200920182026
48 results for equivariant Gromov-Hausdorff convergence

Study shows dimension constraints for isometry groups in non-collapsed Riemannian manifolds.

problem Dimension constraints for isometry groups in non-collapsed Riemannian manifolds.
method Equivariant Gromov--Hausdorff convergence and lower Ricci curvature bounds.
result Dimension of isometry group is at least the limit superior of dimensions of subgroups.

The paper studies spectral convergence of connections on vector and principal bundles.

problem Continuity of eigenvalues of connection Laplacians on vector bundles.
method Introducing a new topology on metric measure spaces with isometric GG-actions to analyze convergence of GG-connections.
result Established spectral convergence of connections on vector and principal bundles.

Let a compact Lie group act isometrically on a non-collapsing sequence of compact Alexandrov spaces with fixed dimension and uniform lower curvature and upper diameter bounds. If the sequence of actions is equicontinuous and converges in the equivariant Gromov--Hausdorff topology, then the limit space is equivariantly …

2014-01-02abs ↗pdf ↗

The paper proves fibration theorems for manifolds with almost nonnegative Ricci curvature.

problem Proving fibration theorems for manifolds with specific curvature conditions.
method Using equivariant regularity theorems and Gromov-Hausdorff convergence.
result Closed manifolds with certain curvature conditions fiber over a b1b_1-torus.

Study on metric spaces with properties (ETR), (LBD) and their convergence.

problem Understanding orientability and convergence of metric measure spaces.
method Analysis of Gromov-Hausdorff and intrinsic flat convergence for spaces satisfying (ETR), (LBD).
result The pointed Gromov-Hausdorff limit coincides with the local flat limit.

Study of Calabi-Yau metrics on converging manifolds, resolving conjectures.

problem Understanding Calabi-Yau metrics on converging manifolds.
method Analysis of Gromov-Hausdorff limits of metrics on Calabi-Yau fibrations.
result Gromov-Hausdorff limit is homeomorphic to the base of the fibration and discriminant locus has high Hausdorff codimension.

The paper examines conditions for Gromov-Hausdorff convergence of metric quotients and provides examples of conic-flat surfaces.

problem Conditions for Gromov-Hausdorff convergence of metric quotients.
method Analyzes sufficient conditions for Gromov-Hausdorff convergence of metric quotients of a metric space.
result Concrete examples of sequences of two-dimensional conic-flat spheres converging to spheres with singularities.

We introduce a natural definition of LpL^p-convergence of maps, p1p \ge 1, in the case where the domain is a convergent sequence of measured metric space with respect to the measured Gromov-Hausdorff topology and the target is a Gromov-Hausdorff convergent sequence. With the LpL^p-convergence, we establish a theory of …

2005-05-20abs ↗pdf ↗

We give the definition of LpL^p-convergence of tensor fields with respect to the Gromov-Hausdorff topology and several fundamental properties of the convergence. We apply this to establish a Bochner-type inequality which keeps the term of Hessian on the Gromov-Hausdorff limit space of a sequence of Riemannian manifolds…

2012-12-10abs ↗pdf ↗

The paper establishes a new link between isometries and scaling nonvanishing property in manifolds with Ricci curvature.

problem Lack of links between large-scale and small-scale geometry in manifolds with Ricci curvature.
method Investigates isometric actions with scaling nonvanishing property and their implications on the structure of manifolds.
result Establishes a dimension monotonicity on the limit group associated with rescaling sequences of universal covers.

The paper connects geometric and topological concepts to bound distances between metric spaces.

problem Bounding distances between metric spaces using Gromov-Hausdorff distance.
method Using Borsuk-Ulam theorems and Vietoris-Rips complexes, the paper obstructs the existence of certain continuous maps between complexes to bound discontinuities of functions.
result The paper provides new bounds on Gromov-Hausdorff distances between spheres of different dimensions.

Defines a Gromov-Hausdorff-like distance for Riemannian manifolds.

problem Defining a distance function for isometric classes of compact Riemannian manifolds.
method Using the Hausdorff distance function in the tangent bundle with the Sasaki metric.
result The convergence of a sequence of compact Riemannian manifolds coincides with the R. S. Hamilton convergence.

Study continuity equation on Hopf and Inoue surfaces, proving estimates and convergence.

problem Analyzing the continuity equation on specific complex surfaces.
method Extended La Nave-Tian's continuity equation to Hermitian setting, proving estimates and Gromov-Hausdorff convergence.
result Proved a priori estimates for solutions on Hopf and Inoue surfaces, and convergence of Inoue surfaces to a circle.

Study geometric quantization and measured Gromov-Hausdorff convergence of frame bundle metrics.

problem Understanding the convergence of frame bundle metrics and their relation to Gromov-Hausdorff convergence.
method Analyzes the one-parameter family of Riemannian metrics on the frame bundle of a prequantum line bundle, considering the convergence to metric measure spaces with S1S^1-actions.
result The frame bundle metrics converge to metric measure spaces with S1S^1-actions, which depend on the choice of base point in Bohr-Sommerfeld fibers.

Global existence and convergence of pluriclosed flow on Oeljeklaus-Toma manifolds.

problem Global existence and convergence of pluriclosed flow on specific complex manifolds.
method Established global existence with arbitrary initial data and Gromov-Hausdorff convergence of blowdown limits.
result Gromov-Hausdorff convergence of blowdown limits to a torus under conjectural bounds.

Defines new metrics for Lorentzian spaces and their convergence.

problem Defining metrics for Lorentzian spaces and their convergence.
method Abstract approach to Lorentzian Gromov-Hausdorff distance and convergence, defining bounded Lorentzian-metric spaces, and proving stability under GH limits.
result GH limits of Lorentzian-metric spaces are isometric and homeomorphic.

The paper studies limits of sub-Riemannian Heisenberg manifolds and proves convergence under certain conditions.

problem The study of limits of sub-Riemannian Heisenberg manifolds and their properties.
method Analysis of Gromov-Hausdorff limits with upper and lower bounds on diameter and Popp's measure.
result The non-collapsed limits of sub-Riemannian Heisenberg manifolds converge to a compact Heisenberg manifold.

We investigate the case of the Kahler-Ricci flow blowing down disjoint exceptional divisors with normal bundle O(-k) to orbifold points. We prove smooth convergence outside the exceptional divisors and global Gromov-Hausdorff convergence. In addition, we establish the result that the Gromov-Hausdorff limit coincides wi…

2011-02-09abs ↗pdf ↗

Existence and convergence of ancient Ricci flow solutions on compact homogeneous spaces.

problem Existence and characterization of ancient solutions to the Ricci flow on compact homogeneous spaces.
method General existence theorem and Gromov-Hausdorff convergence under rescaling.
result Convergence of collapsed ancient solutions to Einstein metrics on torus fibrations.

Study on curvature blow-up and convergence of continuity method on Hirzebruch surface.

problem Curvature blow-up and convergence of continuity method on Hirzebruch surface.
method Continuity method applied to generalised Hirzebruch surface, focusing on Gromov-Hausdorff convergence and scalar curvature estimates.
result A general solution to the continuity method either exists or all times, or the scalar curvature blows up.

We discuss the behavior of (λ1.p(M))1/p(λ_{1. p}(M))^{1/p} with respect to the Gromov-Hausdorff topology and the variable pp, where λ1,p(M)λ_{1, p}(M) is the first positive eigenvalue of the pp-Laplacian on a compact Riemannian manifold MM. Applications include new estimates for the first eigenvalues of the pp-Laplacian on Rieman…

2013-10-01abs ↗pdf ↗

The paper converts metric bounds to distance function Hölder bounds and proves compactness theorems.

problem Proving geometric stability results with scalar curvature bounds.
method Transforming LpL^p bounds to Hölder bounds for distance functions.
result Compactness theorems and convergence guarantees for Riemannian manifolds.

Study shows no new Euclidean factors can appear in the limit of CAT(0) spaces.

problem Stability of Euclidean factors in CAT(0) spaces under convergence.
method GH-convergence of CAT(0) spaces with uniformly cocompact discrete groups of isometries.
result Dimension of the maximal Euclidean factor is the same for large jj.

Study of irreversible metric-measure spaces, proving convergence and stability results.

problem Understanding Gromov-Hausdorff convergence and stability in noncompact irreversible metric-measure spaces.
method Introducing a nondecreasing function to bound reversibility of larger balls, proving convergence/stability results in Gromov-Hausdorff topology.
result Satisfactory convergence/stability results in Gromov-Hausdorff topology for various irreversible spaces, including Finsler manifolds.