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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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144289433577 · Jun 202019922001200920182026
48 results for quantitative energy estimation

Study fractional Allen-Cahn equation and nonlocal minimal surfaces, improving energy and perimeter estimates.

problem Properties of solutions to fractional Allen-Cahn equation and stationary nonlocal minimal surfaces.
method Quantitative stratification principle applied to fractional Allen-Cahn equation, leading to optimal estimates.
result Sharp potential energy and perimeter estimates for fractional Allen-Cahn equation and nonlocal minimal surfaces.

Quantitative stability for nearly minimizing Yamabe metrics.

problem Understanding the stability of nearly minimizing metrics in Riemannian geometry.
method Proving quantitative closeness of nearly minimizing metrics to minimizing metrics in a specific sense.
result The distance between nearly minimizing metrics and minimizing metrics is controlled quadratically by the Yamabe energy deficit.

Estimates for Schrödinger operators on manifolds with bounded Ricci curvature.

problem Quantifying unique continuation for Schrödinger operators on manifolds with specific curvature conditions.
method Proving quantitative unique continuation estimates for Schrödinger operators on manifolds with Ricci curvature bounded below.
result Upper bound for energy range and constant in terms of Ricci curvature and parameters of relatively dense set.

Paper proposes energy-efficient DNN training methods.

problem Energy-constrained deployment of deep neural networks.
method Weighted sparse projection and layer input masking integrated into DNN training.
result Framework provides higher accuracy with same or lower energy budgets.

Sharp estimate shows maps with small energy defect are close to rational maps.

problem Quantitative rigidity of maps from S2S^2 to S2S^2 of general degree.
method Proved maps with small energy defect are essentially given by a collection of rational maps at different scales.
result Sharp quantitative rigidity estimate dist2Cδv(1+logδv)dist^2 \leq C δ_v(1+\vert\logδ_v\vert), sharpness shown.

The paper proves rigidity estimates for varifolds almost minimizing the Willmore energy.

problem Optimal rigidity estimates for varifolds almost minimizing the Willmore energy.
method Analyzes integral 2-varifolds with generalized mean curvature in Rn\mathbb{R}^n.
result Varifolds are close to the standard embedding of the round sphere in a quantitative way.

We show that the non pluripolar product of positive currents is a bimeromorphic invariant. Under some natural assumptions, we show that the (weighted) energy associated to big cohomology classes are also bimeromorphic invariants. We compare the weighted energy functionals of currents with respect to different cohomolog…

2013-11-28abs ↗pdf ↗

Alternative approach to rigidity of high-dimensional isometric immersions.

problem Rigidity of high-dimensional isometric immersions between compact manifolds.
method Quantitative rigidity estimates, reducing to Euclidean setting and applying Friesecke-James-Müller rigidity estimate.
result Quantitative results showing close proximity to isometric immersions for small stretching and bending energy.

In this paper, we prove estimates and quantitative regularity results for the harmonic map flow. First, we consider H^1_loc-maps u defined on a parabolic ball P\subset M\times R and with target manifold N, that have bounded Dirichlet-energy and Struwe-energy. We define a quantitative stratification, which groups togeth…

2013-08-12abs ↗pdf ↗

Study on stability of half-harmonic maps from R to S, proving non-degeneracy and quantitative stability.

problem Stability and non-degeneracy of half-harmonic maps from R to S.
method Analyzing the kernel of the linearized operator and using quantitative rigidity estimates.
result Uniform control of deviation for half-harmonic maps near Möbius transformations and Blaschke products.

For harmonic maps of degree 2, a similar quantitative stability estimate does not hold uniformly.

problem Investigate the quantitative stability of harmonic maps of degree 2.
method Prove a local quantitative stability result for harmonic maps of degree 2, showing dependence on the given harmonic map.
result A uniformly quantitative stability estimate does not hold for degree 2 harmonic maps.

Study of charged scalar fields on Reissner-Nordström spacetimes via energy estimates.

problem Understanding the behavior and stability of charged scalar fields on near-extremal Reissner-Nordström spacetimes.
method Global integrated energy decay and boundedness estimates for solutions to the charged scalar field equation.
result Established global, weighted integrated energy decay and boundedness estimates for solutions on (near-)extremal Reissner-Nordström(--de Sitter) spacetimes.

Quantitative estimates for QQ-curvature near minimizing metrics on Riemannian manifolds.

problem Estimating the QQ-curvature near minimizing metrics on Riemannian manifolds.
method Proving quantitative estimates for the total kk-th order QQ-curvature functional near minimizing metrics.
result Existence of quantitative estimates for the QQ-curvature deficit controlling higher powers of the distance to the minimizing set.

The paper analyzes the emergence of almost-honeycomb structures in low-energy planar clusters.

problem Understanding the formation of shapes resembling honeycombs in low-energy configurations.
method Detailed quantitative estimates and a revision of the global isoperimetric principle for honeycomb clusters.
result The majority of chambers in low-energy planar clusters are generalized hexagons, closely resembling regular hexagons.

The Clifford torus minimizes Willmore energy closely for small perturbations.

problem Finding the closest shape to the Clifford torus under small perturbations of Willmore energy.
method Analyzing integral 2-varifolds with specific properties and showing quantitative closeness to the Clifford torus.
result The support of the varifold is quantitatively close to the Clifford torus after a conformal transformation.

Study investigates singularity formation in α\alpha-Yang-Mills-Higgs fields on spheres.

problem Singularity formation in α\alpha-Yang-Mills-Higgs fields on spheres.
method Established α\alpha-energy identity, no-neck property through Hodge decomposition and new conservation law.
result Unified and quantitative framework for singularity formation in variational gauge theories.

Sharp inequalities and symmetries on Riemannian surfaces quantified.

problem Understanding symmetries and asymmetries in Riemannian surfaces.
method Introducing scattering energy to measure asymmetry and proving isoperimetric inequalities.
result Sharp quantitative isoperimetric inequalities and domains with vanishing scattering energy characterized.

Improved optimal regularity for harmonic almost complex structures.

problem Establishing optimal regularity for harmonic almost complex structures.
method Quantitative stratification method and rectifiability of singular strata.
result Optimal regularity theory for energy minimizing harmonic almost complex structures.

Paper examines stability of minimizing metrics on manifolds with boundary.

problem Stability of minimizing Yamabe metrics on compact manifolds with boundary.
method Investigates stability in the sense introduced by Escobar, showing closeness of nearly minimizing metrics.
result Quantitative closeness of nearly minimizing metrics to minimizing Yamabe metrics within their conformal class.

In this paper, we study the singular sets of FF-subharmonic functions u:B2(0n)Ru: B_{2}(0^{n})\rightarrow\mathbf{R}, where FF is a subequation. The singular set S(u)B2(0n)\mathcal{S}(u)\subset B_{2}(0^{n}) has a stratification $\mathcal{S}^{0}(u)\subset\mathcal{S}^{1}(u)\subset\cdots\subset\mathcal{S}^{k}(u)\subset\cdots\subset\mat…

2016-10-31abs ↗pdf ↗

Enhanced diffusion sampling improves rare event sampling in biomolecular simulations.

problem Efficiently sampling rare transition events in biomolecular systems.
method Quantitative steering protocols to generate biased ensembles and exact reweighting.
result Fast, accurate, and scalable estimation of equilibrium properties.

Enhanced diffusion sampling tackles rare event sampling in biomolecular simulations.

problem Efficiently sampling rare transition events in biomolecular simulations.
method Quantitative steering protocols to generate biased ensembles, followed by exact reweighting.
result Fast, accurate, and scalable estimation of equilibrium properties for folding free energies.

Paper revisits FRAME model, explaining instability and proposing a new metric.

problem Unstable training energy in FRAME model.
method Theoretical analysis using particle physics, proposing a new Wasserstein distance.
result Proposed Wasserstein distance stabilizes energy dissipation and maintains statistical consistency.

Given a principal bundle PMP\to M over a Riemannian manifold with compact structure group GG, let us consider a stationary Yang-Mills connection AA with energy MFA2Λ\int_M |F_A|^2\le Λ. If we consider a sequence of such connections AiA_i, then it is understood that up to subsequence we can converge AiAA_i\to A to a singu…

2016-10-10abs ↗pdf ↗

We show the existence of a thick thin decomposition of the domain of a pseudo holomorphic curve with boundary. The geometry of the thick part is bounded uniformly in the energy. Furthermore, in the thick part, there is a uniform bound on the differential which is exponential in the energy. The thin part consists of ann…

2013-11-29abs ↗pdf ↗

EBIL simplifies IL by estimating expert energy as reward, achieving effective performance.

problem Recovering optimal policy from expert demonstrations without reward signals.
method EBIL uses a two-stage solution: first estimating expert energy as reward, then learning policy.
result EBIL achieves effective performance and interpretable reward signals.

The paper proves a reverse isoperimetric inequality and applies it to analyze surface flows.

problem Analyzing the negative gradient flow of the Willmore energy plus volume.
method Proved a quantitative reverse isoperimetric inequality and applied it to the flow.
result Initial surfaces converge to a round point in finite or infinite time.

The paper develops quantitative estimates for holomorphic sections over bounded domains.

problem Establishing precise inequalities for holomorphic sections over bounded domains.
method Develops Sobolev-type inequalities and applies them to holomorphic sections of Hermitian vector bundles.
result Quantitative Carleman-type estimates for holomorphic sections are derived, improving on previous non-quantitative results.

Energy distance measures feature heterogeneity in federated learning.

problem Heterogeneity across data sources hinders model aggregation in federated learning.
method Introduced Taylor approximations of energy distance for efficient computation.
result Taylor approximations accurately capture feature discrepancies, improving convergence.

We propose the Margin Adaptation for Generative Adversarial Networks (MAGANs) algorithm, a novel training procedure for GANs to improve stability and performance by using an adaptive hinge loss function. We estimate the appropriate hinge loss margin with the expected energy of the target distribution, and derive princi…

2017-04-12abs ↗pdf ↗

Energy Transformer integrates attention, energy models, and associative memory.

problem Lack of clear theoretical foundations in attention mechanisms and straightforward design of energy functions in energy-based models.
method Proposes Energy Transformer, a sequence of attention layers with a specifically engineered energy function.
result Obtained strong results on graph anomaly detection and classification tasks.

In this paper we show a quantitative rigidity result for the minimizer of the Willmore functional among all projective planes in Rn\mathbb{R}^n with n4n\ge 4. We also construct an explicit counterexample to a corresponding rigidity result in codimension one, by showing that an Enneper surface might split-off during a b…

2014-08-09abs ↗pdf ↗

In this paper we prove several quantitative rigidity results for conformal immersions of surfaces in Rn\mathbb{R}^n with bounded total curvature. We show that (branched) conformal immersions which are close in energy to either a round sphere, a conformal Clifford torus, an inverted catenoid, an inverted Enneper's minim…

2014-05-28abs ↗pdf ↗

Sharp estimates lead to new comparison theorems in Riemannian and Kähler geometry.

problem Developing precise geometric inequalities for curvature assumptions.
method Quantitative Laplacian estimates and integral curvature assumptions.
result Derive quantitative comparison theorems for Riemannian and Kähler manifolds.

Quantitative Sobolev extensions lead to Neumann heat kernel bounds.

problem Bounding Neumann heat kernels for domains with integral Ricci curvature.
method Quantitative Sobolev extension operators and Neumann heat kernel estimates.
result Uniform bounds on Neumann heat kernels and eigenvalues.

Study proves quantitative results for isoperimetric problem outside convex bodies in the plane.

problem Quantitative estimates for the relative isoperimetric problem outside convex bodies in the plane.
method Flow approach and Łojasiewicz estimates to prove quantitative stability for minimizers.
result Explicit constants and optimal exponents/rates for Łojasiewicz estimates and rates of convergence for gradient flow.

Study magnetic Laplacians on hyperbolic surfaces, revealing three regimes of eigenfunction behavior.

problem Investigate semiclassical defect measures of magnetic Laplacians on hyperbolic surfaces.
method Analyze eigenfunctions in low, critical, and high energy regimes using quantum ergodicity and equidistribution.
result Eigenfunctions in different regimes converge to distinct measures: invariant, Liouville, or equidistributed.

In this paper we prove quantitative regularity results for stationary and minimizing extrinsic biharmonic maps. As an application, we determine sharp, dimension independent LpL^p bounds for kf\nabla^k f that do not require a small energy hypothesis. In particular, every minimizing biharmonic map is in W4,pW^{4,p} for all…

2014-10-21abs ↗pdf ↗