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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.

169,341 papers · 148 categories

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48 results for remainder

Improved estimate for remainder term in Weyl law for congruence subgroups of Chevalley groups.

problem Improving the remainder term estimate in the Weyl law for congruence subgroups of Chevalley groups.
method Sharpened the Weyl law remainder term estimate for simply connected Chevalley groups.
result Power saving estimate for the remainder term.

Improved remainder estimate for eigenvalue asymptotics on manifolds with group actions.

problem Asymptotic distribution of eigenvalues of invariant elliptic operators.
method Refined stationary phase approximation and singular critical sets analysis.
result Asymptotic multiplicity formula for families of irreducible representations.

Paper introduces statistical CRT for robust multiple parameter estimation.

problem Ambiguity resolution problem with exponential failure probability.
method Proposes a wrapped Gaussian mixture model and two novel approaches for robust estimation.
result Statistically based scheme achieves stronger robustness, especially in low SNR.

Paper sharpens Hardy and Rellich inequalities on nonreversible Finsler manifolds.

problem Quantitative Hardy and Rellich inequalities on nonreversible Finsler manifolds.
method Sharp constants of inequalities refined with remainder terms for specific curvature conditions.
result Results hold globally for nonreversible Finsler manifolds with certain curvature properties.

Study heat traces for drifting Laplacian and Schrödinger operators on manifolds.

problem Analyzing heat traces for drifting Laplacian and Schrödinger operators on manifolds.
method Proved asymptotic expansions and remainder estimates for heat traces under different regularity conditions.
result The asymptotic behavior of the remainder is determined by higher regularity of the potential or weight function.

We prove an asymptotic formula for the number of integer points in a family of bounded domains in the Euclidean space with smooth boundary, which remain unchanged along some linear subspace and stretch out in the directions, orthogonal to this subspace. A more precise estimate for the remainder is obtained in the case …

2010-06-25abs ↗pdf ↗

Simple quantile regression method wins GEFCom2017 probabilistic load forecasting competition.

problem Probabilistic load forecasting in electricity markets.
method Quantile regression applied to log-transformed hourly load data, considering seasonalities and long-term trend.
result Method placed second in open data track and fourth in definite data track.

Paper proves convergence of MDL to Einstein-Hilbert with boundary term.

problem Proving convergence of discrete MDL to continuous Einstein-Hilbert action.
method Proves \(Γ\)-convergence using diffeomorphism-natural discrete MDL-type functional.
result Identifies Carathéodory densities and obtains \(\liminf/\limsup\) bounds.

Study embeddings between Barron spaces with various activation functions, focusing on RePU.

problem Understanding the influence of activation functions on infinitely wide neural networks.
method Prove embeddings by constructing push-forward maps on measures representing functions.
result Barron spaces with RePU activation have a hierarchical structure similar to Sobolev spaces.

Optimal portfolio selection in incomplete markets analyzed with SPDEs and HJB equations.

problem Optimal portfolio selection in incomplete markets with forward investment performance criteria.
method Analysis of SPDEs and HJB equations, expansion and remainder estimates.
result Explicit formulae for leading and first order terms of forward investment process and optimal feedback portfolios.

Study links Hopf differentials to curvature line flows on time-like CMC surfaces.

problem Understanding the relationship between Hopf differentials and curvature line flows on time-like CMC surfaces.
method Investigation of Hopf differentials and curvature line flows on time-like CMC surfaces in Lorentzian 3-space forms.
result The index of a curvature line flow at an umbilic point depends on the remainder of the Hopf differential's order modulo four.

We introduce a fractional Yamabe flow involving nonlocal conformally invariant operators on the conformal infinity of asymptotically hyperbolic manifolds, and show that on the conformal spheres $(\Sn, [g_{\Sn}])$, it converges to the standard sphere up to a Möbius diffeomorphism. This result allows us to obtain extinct…

2011-10-25abs ↗pdf ↗

Researchers extend asymptotic analysis to Bergman projections with Gevrey weights.

problem Analyzing Bergman projections with Gevrey weights.
method Extending direct approach to semiclassical asymptotics to Gevrey weights using Fourier integral operators.
result Gevrey symbol amplitude of asymptotic Bergman projection with Gevrey weights and Gevrey-type growth rate.

This paper analyzes quantiles of heavy-tailed distributions, separating projection direction and quantile threshold effects.

problem Analyzing quantiles of heavy-tailed distributions with estimated parameters.
method Introduces a Q-Q orthogonality formulation to separate projection-direction and quantile-threshold effects.
result Decomposes the difference between empirical and population quantiles into three terms.

In this paper we study minimal and constant mean curvature (cmc) periodic surfaces in H^2 x R. More precisely, we consider quotients of H^2 x R by discrete groups of isometries generated by horizontal hyperbolic translations f and/or a vertical translation T. In the quotient by the Z^2 subgroup of the isometry group ge…

2011-06-29abs ↗pdf ↗

Solutions near infinity to special Lagrangian equations are asymptotic to quadratic polynomials with logarithmic terms.

problem Solving special Lagrangian equations near infinity with specific conditions.
method Modified Kelvin transforms to characterize remainders in asymptotic expansions.
result Remainders in asymptotic expansions are characterized by a single smooth function in even dimensions and Cn1,αC^{n-1,α} in odd dimensions.

The paper explores how dynamic preconditioning affects the CLT in online averaging.

problem When does dynamic preconditioning preserve the Polyak-Ruppert CLT?
method The authors decompose the averaged error and identify a stabilization-rate threshold for the CLT to hold.
result The CLT holds if the dynamic remainder vanishes in L2L^2 and the stabilization rate exceeds a threshold.

We study the free energy of the Laughlin state on curved backgrounds, starting from the free field representation. A simple argument, based on the computation of the gravitational effective action from the transformation properties of Green functions under the change of the metric, allows to compute the first three ter…

2014-10-24abs ↗pdf ↗

Algorithm learns principal curves from data streams in a sequential manner.

problem Summarizing large data streams using PCA is challenging due to theoretical and algorithmic issues.
method Proposes a novel sequential algorithm for learning principal curves from data streams.
result Supports regret bounds with optimal sublinear remainder terms.

Let p be an odd regular prime, and assume that the Lichtenbaum-Quillen conjecture holds for K(Z[1/p]) at p. Then the p-primary homotopy type of the smooth Whitehead spectrum Wh(*) is described. A suspended copy of the cokernel-of-J spectrum splits off, and the torsion homotopy of the remainder equals the torsion homoto…

2003-04-24abs ↗pdf ↗

New method bounds high-dimensional regression without estimating design covariance.

problem High-dimensional linear regression with random design.
method Error-in-operator approach that incorporates design covariance into empirical risk minimization.
result Dimension-free bounds on excess prediction risk derived.

The paper proves inequalities for closed surfaces involving mean curvature.

problem Proving geometric inequalities for closed surfaces in Euclidean space.
method Verification of inequalities for convex surfaces and addressing Topping's conjecture.
result Optimal scaling law between Willmore energy and isoperimetric ratio for convex surfaces.