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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.

169,051 papers · 148 categories

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12.5%25.0%37.5%50.0% · Sep 199319922001200920172026
48 results for Gromov's volume spectrum

Given MM a Riemannian manifold with (possibly empty) boundary, we show that its volume spectrum {ωp(M)}pN\{ω_p(M)\}_{p\in\mathbb{N}} satisfies a Weyl law that was conjectured by Gromov.

2016-07-29abs ↗pdf ↗

Proves multiplicity one for min-max minimal hypersurfaces in specific manifolds.

problem Proving multiplicity one for min-max minimal hypersurfaces in specific manifolds.
method Using min-max theory for hypersurfaces with prescribed mean curvature and approximating min-max values.
result Confirms a conjecture by Marques-Neves for min-max minimal hypersurfaces in bumpy metrics.

Enhanced Bishop-Gromov theorem for homogeneous and inhomogeneous spaces.

problem Bounding the volume growth of geodesic balls in spaces.
method Introducing coefficient shuffling and using the Raychaudhuri equation, geodesic flow conservation, and the full spectrum of Ricci curvature.
result Upper bounds on the average rate of growth of geodesics for finite-volume inhomogeneous spaces.

We show that a noncompact manifold with bounded sectional curvature, whose ends are sufficiently Gromov-Hausdorff close to rays, has a finite dimensional space of square-integrable harmonic forms. In the special case of a finite-volume manifold with pinched negative sectional curvature, we show that the essential spect…

1999-08-26abs ↗pdf ↗

In this paper, we prove the existence of the free boundary minimal hypersurface of least area in compact manifolds with boundary. Such hypersurface can be viewed as the ground state of the volume spectrum introduced by Gromov. Moreover, we characterize the orientation and Morse index of them.

2018-01-22abs ↗pdf ↗

Paper proves new theorems about curvature in weighted manifolds.

problem Understanding curvature in weighted manifolds.
method Proved spectral comparison and splitting theorems for infinity-Bakry-Emery Ricci curvature.
result Results extend existing theorems and provide new supplements.

Paper proves Gromov's conjecture on manifolds with certain group properties.

problem Gromov's conjecture on positive scalar curvature and simplicial volume.
method Proves conjecture under a fundamental group decay property.
result Proves Gromov's conjecture for manifolds with a weakened rapid decay property.

The volume spectrum of fiber bundles is bounded by the product of the base's volume spectrum and the fiber's volume.

problem Bounding the volume spectrum of fiber bundles and understanding its relationship with the base and fibers.
method Established an inequality relating the volume spectrum of a fiber bundle to the volume spectrum of its base and the volume of the largest fiber.
result The volume spectrum of a fiber bundle is bounded by the product of the volume spectrum of the base and the volume of the largest fiber.

We define a new spectrum for compact length spaces and Riemannian manifolds called the "covering spectrum" which roughly measures the size of the one dimensional holes in the space. More specifically, the covering spectrum is a set of real numbers δ>0δ>0 which identify the distinct δδ covers of the space. We investigat…

2003-11-22abs ↗pdf ↗

The paper establishes a sub-additive inequality for volume and ε-phase-transition spectra of Riemannian manifolds.

problem Analyzing the volume and ε-phase-transition spectra of Riemannian manifolds.
method Using the Almgren-Pitts width and Allen-Cahn approach.
result Proves sub-additive inequalities for volume and ε-phase-transition spectra.

Researchers create a new compactification of character varieties using geometric and algebraic methods.

problem Compactifying character varieties of finitely generated groups in PSL2(R)\mathrm{PSL}_2(\mathbb{R}).
method Geometric interpretation of elements of the real spectrum compactification as Γ-actions on R\mathbb{R}-trees, endowed with an orientation.
result Continuous surjection from real spectrum compactification to oriented Gromov equivariant compactification.

Let kk and kk' be two knots in 3-sphere. Say kk 1--dominates kk', if there is a proper degree 1 map $f\co E(k)\to E(k')$, between knot exterior of kik_i. Theorem: Suppose that any companion of kk is prime. If kk 1--dominates kk' with the same Gromov volume, then kk' can be obtained from kk by finitely many de-…

2008-01-13abs ↗pdf ↗

This study improves graph coarsening methods by preserving graph spectrum and distances.

problem Solving large-scale graph problems by working on a smaller graph.
method Developed a geometric approach using Gromov--Wasserstein distance to minimize the difference between graph distances and their coarsened versions.
result Minimizing the difference between graph distances and their coarsened versions can be achieved using the weighted kernel KK-means method.

In this paper, we prove that the systolic volume of a closed aspherical 3-manifold is bounded below in terms of complexity. Systolic volume is defined as the optimal constant in a systolic inequality. Babenko showed that the systolic volume is a homotopy invariant. Moreover, Gromov proved that the systolic volume depen…

2015-09-25abs ↗pdf ↗

Study on simplicial volume and Euler characteristic of aspherical manifolds.

problem Whether vanishing simplicial volume implies vanishing Euler characteristic.
method Various strategies for both affirmative and negative answers, context with other problems, and comparative analysis of additivity properties.
result Found counterexamples among aspherical spaces that are homology equivalent to manifolds but not manifolds themselves.

The curvature-dimension condition implies a new weighted scalar curvature.

problem Studying the properties of the nn-volumic scalar curvature.
method Using the curvature-dimension condition mCD(κ,n){ m CD}(κ,n) and smGH-convergence.
result The stability of nn-volumic scalar curvature κ\geq κ under smGH-convergence.

Essential spectrum of differential forms on curved manifolds is connected.

problem Understanding the essential spectrum of differential forms on curved manifolds.
method Using Gromov-Hausdorff convergence and Weyl criterion, the authors show the essential spectrum is a connected interval.
result The essential spectrum of the Hodge Laplacian on differential forms is a connected interval over complete manifolds with vanishing curvature at infinity.

In this article we study the spectrum of totally geodesic surfaces of a finite volume hyperbolic 3-manifold. We show that for arithmetic hyperbolic 3-manifolds that contain a totally geodesic surface, this spectrum determines the commensurability class. In addition, we show that any finite volume hyperbolic 3-manifold …

2009-01-26abs ↗pdf ↗

Study on length spectrum of random hyperbolic 3-manifolds.

problem Understanding the length spectrum of random hyperbolic 3-manifolds.
method Modeling random hyperbolic 3-manifolds using truncated tetrahedra and analyzing their length spectrum as volume tends to infinity.
result The length spectrum converges in distribution to a Poisson point process with a computable intensity λ as volume increases.

In this paper, we derive a relative volume comparison estimate along Ricci flow and apply it to studying the Gromov-Hausdorff convergence of Kähler-Ricci flow on a minimal manifold. This new estimate generalizes Perelman's no local collapsing estimate and can be regarded as an analogue of the Bishop-Gromov volume compa…

2018-02-26abs ↗pdf ↗

The paper compares two spectrum definitions and finds stability in one modification.

problem Generalizing eigenvalues to arbitrary functionals with stability.
method Comparison of Gromov's homotopy significant spectrum and Krasnoskii spectrum, with a modified definition of the homotopy significant spectrum.
result The modified homotopy significant spectrum is stable, and Cheeger constant corresponds to Krasnoskii eigenvalue.

In this paper, we study the spectrums of faithful dimension pairs on a closed Finsler manifold and obtain a Gromov type and a Buser type lower bounds for eigenvalues. Furthermore, for the Lusternik-Schnirelmann spectrum, we not only obtain a better lower bound, but also estimate the multiplicity of each eigenvalue.

2018-06-14abs ↗pdf ↗

Infinite volume requires no atoms at the bottom of the spectrum for certain groups.

problem Determining conditions for infinite volume in certain algebraic groups.
method Analyzing the spectral properties of Laplace operators on symmetric spaces.
result The bottom of the L2L^2-spectrum being an atom is necessary and sufficient for finite volume.

We generalize and strengthen the theorem of Gromov that every compact Riemannian manifold of diameter at most D has a set of generators g_1,...,g_k of length at most 2D and relators of the form g_ig_m = g_j . In particular, we obtain an explicit bound for the number k of generators in terms of the number "short loops" …

2012-05-05abs ↗pdf ↗

We show how a suitably twisted Spin-cobordism spectrum connects to the question of existence of metrics of positive scalar curvature on closed, smooth manifolds by building on fundamental work of Gromov, Lawson, Rosenberg, Stolz and others. We then investigate this parametrised spectrum, compute its mod 2mod~2-cohomology …

2013-11-13abs ↗pdf ↗

Lorentzian versions of classical Riemannian volume comparison theorems by Gunther, Bishop and Bishop-Gromov, are stated for suitable natural subsets of general semi-Riemannian manifolds. The problem is more subtle in the Bishop-Gromov case, which is extensively discussed. For the general semi-Riemannian case, a local v…

1998-11-27abs ↗pdf ↗

The paper proves geometric rigidity using harmonic twisted spinors and scalar curvature comparison.

problem Proving geometric rigidity for closed Riemannian spin manifolds with specific properties.
method Using Gromov's exact-lift two-form method and harmonic spinors to analyze scalar curvature.
result The original metric is Einstein, and the universal cover is real hyperbolic in the positive-spectrum case.

Here we explore a variety of properties of intrinsic flat convergence. We introduce the sliced filling volume and interval sliced filling volume and explore the relationship between these notions, the tetrahedral property and the disappearance of points under intrinsic flat convergence. We prove two new Gromov-Hausdorf…

2012-10-15abs ↗pdf ↗

Proves optimal volume growth for certain nonnegative Ricci curvature manifolds.

problem Volume growth of manifolds with nonnegative Ricci curvature and positive bi-Ricci curvature.
method Analyzes bi-Ricci curvature and uses Gromov's volume bound conjecture analogy.
result Proves optimal volume growth for manifolds with specific curvature conditions.

The study shows almost maximal volume entropy rigidity for certain manifolds with integral Ricci curvature.

problem Volume entropy rigidity for manifolds with lower integral Ricci curvature bound.
method Analyzing manifolds with specific integral Ricci curvature bounds, diameter, and volume entropy.
result The universal cover of the manifold is close to a hyperbolic space form under certain conditions.

We consider the volume entropy of closed flat surfaces of genus g2g\geq 2 and area 1. We show that a sequence of flat surfaces diverges in the moduli space if and only if the volume entropy converges to infinity. Equivalently the Hausdorff dimension of the Gromov boundary of the isometric universal cover tends to infin…

2011-01-10abs ↗pdf ↗