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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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163325488650 · Jun 202019922001200920172026
48 results for local Bernstein estimates

Article provides Bernstein gradient estimates for heat equations with potential terms.

problem Gradient estimates for heat equations with potential terms on weighted Riemannian manifolds.
method Derived Bernstein type gradient estimates for two systems of heat equations with linear, exponential, and combined potentials.
result Resolves part of the problem raised by Bhattacharyya et al. in \cite{SB-1}.

The study sharpens local Bernstein estimates for Laplace eigenfunctions on compact manifolds.

problem Understanding local growth properties of Laplace eigenfunctions on compact Riemannian manifolds.
method Refined Donnelly-Fefferman method based on L2L^{2}--Carleman estimates, combined with elliptic regularity and patching of local Carleman estimates.
result Almost sharp local LpL^{p}--Bernstein inequalities for p[1,]p\in[1,\infty].

In this paper, we consider three typical problems on a locally finite connected graph. The first one is to study the Bochner formula for the Laplacian operator on a locally finite connected graph. We use the Bochner formula to derive the Bernstein type estimate of the heat equation. The second is to derive the Reilly t…

2013-04-01abs ↗pdf ↗

Extends Onsager's conjecture to Besov spaces on manifolds with boundary.

problem Proving Onsager's conjecture on Riemannian manifolds with boundary.
method Constructing Hodge-Neumann heat kernel, obtaining off-diagonal decay and local Bernstein estimates.
result Extends Onsager's conjecture to Besov spaces B^3,V13\widehat{B}_{3,V}^{\frac{1}{3}}.

Adaptive Bernstein copulas improve risk management by preventing overfitting and reducing simulation effort.

problem Overfitting and high simulation effort in estimating dependence models.
method Constructive approach to Bernstein copulas with an admissible discrete skeleton.
result Comparison of different copula approaches in risk management shows improved accuracy and efficiency.

A new method for high-dimensional classification using Bernstein polynomials.

problem Computational difficulties in high-dimensional SVM hinge loss.
method Proposes Bernstein support vector machine (BernSVM) and two efficient algorithms.
result Achieves a prediction accuracy rate of slog(p)/n\sqrt{s\log(p)/n} with high probability.

Survey Bernstein-type theorems for graphical surfaces in Euclidean and Lorentz-Minkowski spaces.

problem Proving theorems for minimal and constant mean curvature graphs in Euclidean and Lorentz-Minkowski spaces.
method Explains several proofs and provides mean curvature estimates for graphs in Euclidean and Lorentz-Minkowski spaces.
result Bernstein-type theorems for constant mean curvature graphs in Euclidean 3-space and space-like graphs in Lorentz-Minkowski 3-space.

In this paper we introduce a local approach for the study of maximal surfaces immersed into a Lorentzian product space of the form M2×R1M^2\times R_1, where M2M^2 is a connected Riemannian surface and M2×R1M^2\times R_1 is endowed with the product Lorentzian metric. Specifically, we establish a local integral inequality for …

2009-04-22abs ↗pdf ↗

Study introduces new Bernstein inequalities for dependent data in Hilbert spaces.

problem Learning from non-independent and non-identically distributed data.
method Data-dependent Bernstein inequalities tailored for vector-valued processes in Hilbert space.
result Achieved novel risk bounds for covariance operator estimation and operator learning.

We define a relative entropy for two expanding solutions to mean curvature flow of hypersurfaces, asymptotic to the same cone at infinity. Adapting work of White and using recent results of Bernstein and Bernstein-Wang, we show that expanders with vanishing relative entropy are unique in a generic sense. This also impl…

2018-12-20abs ↗pdf ↗

In this paper, we derive curvature estimates for strongly stable hypersurfaces with constant mean curvature immersed in Rn+1\mathbb{R}^{n+1}, which show that the locally controlled volume growth yields a globally controlled volume growth if M=\partial M=\emptyset. Moreover, we deduce a Bernstein-type theorem for complete…

2012-12-14abs ↗pdf ↗

Curvature estimate for stable free boundary minimal hypersurfaces in wedge-shaped manifolds.

problem Estimating curvature of stable free boundary minimal hypersurfaces in wedge-shaped manifolds.
method Compactness theorem and Schoen-Simon-Yau estimates.
result Curvature estimate for free boundary minimal hypersurfaces in wedge-shaped manifolds.

A weighted area estimate for entire graphs with bounded weighted mean curvature in Gauss space is given by a simple proof. Bernstein type theorems for self shrinkers (\cite {wa}) as well as for graphic λλ-hypersurfaces (\cite{ chwe2}) follow immediately as consequences.

2018-03-01abs ↗pdf ↗

Paper estimates curvature of minimal surfaces in a specific geometric space.

problem Estimating curvature of minimal hypersurfaces in Heisenberg groups.
method Extending Simons formula and Kato inequality to sub-Riemannian setting, applying to stable hypersurfaces.
result Integral curvature estimates for stable hypersurfaces in Heisenberg groups.

The paper extends Bernstein Theorem for minimal spacelike surfaces in 4D Minkowski space.

problem Analyzing Bernstein property for minimal spacelike surfaces in 4D Minkowski space.
method Study of an extension of the Bernstein Theorem for minimal spacelike surfaces in R^4_1.
result The Bernstein property does not hold in general for graphic spacelike surfaces in R^4_1.

Paper studies curvature of stable surfaces meeting at a common boundary.

problem Stable multiple junction surfaces and their curvature estimates.
method Derived LpL^p estimate of curvature for stable multiple junction surfaces.
result Bernstein Theorem holds for stable multiple junction surfaces in certain cases.

The paper proposes a new method for probabilistic load forecasting using Bernstein-Polynomial Normalizing Flows.

problem High variability in short-term load forecasting at the low-voltage level due to fluctuating demand and increasing electrification.
method Flexible conditional density forecasting based on Bernstein polynomial normalizing flows with neural network control.
result Density predictions outperform traditional methods for 24h-ahead load forecasting.

This paper is devoted to the study of geometric structures modeled on homogeneous spaces G/P, where G is a real or complex semisimple Lie group and PGP\subset G is a parabolic subgroup. We use methods from differential geometry and very elementary finite-dimensional representation theory to construct sequences of invar…

2000-01-28abs ↗pdf ↗

Improved analysis of UCRL2 with empirical Bernstein inequality reduces exploration-exploitation regret.

problem Exploration-exploitation in communicating Markov Decision Processes.
method Analysis of UCRL2 with Empirical Bernstein inequalities (UCRL2B).
result Regret bound of O~(DΓSAT)\widetilde{O}(\sqrt{DΓS A T}) for UCRL2B.

We present Bernstein-Sato identities for scalar-, spinor- and differential form-valued distribution kernels on Euclidean space associated to conformal symmetry breaking operators. The associated Bernstein-Sato operators lead to partially new formulae for conformal symmetry breaking differential operators on functions, …

2017-11-05abs ↗pdf ↗

The paper proves Calabi-Bernstein type results for minimal and maximal surfaces in 3D and 3D-L spacetime.

problem Characterizing minimal and maximal surfaces in 3D and 3D-L spacetime.
method Analyzing surfaces with specific properties and using geometric and functional methods.
result Calabi-Bernstein type results for critical points of a weighted area functional in R3\mathbb{R}^{3} and L3\mathbb{L}^{3}.