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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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124248371495 · Jun 202019922001200920172026
48 results for growth estimation

The study provides volume growth estimates for specific types of manifolds.

problem Estimating volume growth for Ricci solitons and quasi-Einstein manifolds.
method Similar to classical results, the study proves volume growth estimates for gradient Ricci solitons and quasi-Einstein manifolds.
result Sharp volume growth estimates for gradient shrinking Ricci solitons and upper bound volume growth estimates for quasi-Einstein manifolds.

Sharp heat kernel and Green's function estimates on Euclidean volume growth manifolds.

problem Estimating heat kernels and Green's functions on specific Riemannian manifolds.
method Analyzing noncompact Riemannian manifolds with nonnegative Ricci curvature and Euclidean volume growth.
result Sharp Moser-Trudinger inequalities on manifolds with Euclidean volume growth.

New methods estimate transport-growth pairs in unbalanced optimal transport.

problem Statistical guarantees for Monge-type estimation in unbalanced optimal transport remain limited.
method Developed two estimators for transport-growth pairs under different setups.
result Achieved minimax optimal rate for estimation of transport-growth pairs.

Study on polynomial growth functions and forms on gradient Ricci solitons.

problem Estimating dimensions of polynomial growth holomorphic functions and forms.
method Relating to spectral data of the ff-Laplacian, proving estimates under curvature assumptions.
result Sharp dimension estimates and almost sharp frequency estimates for polynomial growth holomorphic functions.

Estimates growth of reciprocal classes in Hecke groups.

problem Estimating the growth of reciprocal conjugacy classes in Hecke groups.
method Using free product structure and word lengths of reciprocal elements, with tools from basic probability theory.
result Estimates the asymptotic growth of reciprocal conjugacy classes in Hecke groups.

We study the growth rate of harmonic functions in two aspects: gradient estimate and frequency. We obtain the sharp gradient estimate of positive harmonic function in geodesic ball of complete surface with nonnegative curvature. On complete Riemannian manifolds with non-negative Ricci curvature and maximal volume growt…

2019-12-05abs ↗pdf ↗

Optimizes dimension estimate for holomorphic functions on Kähler manifolds.

problem Determining the optimal dimension for holomorphic functions with polynomial growth.
method Analyzes Kähler manifolds with non-negative holomorphic bisectional curvature.
result Identifies the specific gap and optimal dimension for maximal volume growth.

We derive a precise estimate on the volume growth of the level set of a potential function on a complete noncompact Riemannian manifold. As applications, we obtain the volume growth rate of a complete noncompact self-shrinker and a gradient shrinking Ricci soliton. We also prove the equivalence of weighted volume finit…

2011-06-24abs ↗pdf ↗

Sharp Liouville theorem for minimal graphs on manifolds with nonnegative Ricci curvature.

problem Characterizing smooth solutions to minimal hypersurface equations on manifolds with nonnegative Ricci curvature.
method Gradient estimate for minimal graphs over ΣΣ with small linear growth of the negative parts of graphic functions via iteration.
result Every smooth solution uu to minimal hypersurface equation on ΣΣ is a constant provided uu has sublinear growth for its negative part.

Study polynomial growth harmonic functions on infinite penny graphs.

problem Finite-dimensional property of polynomial growth harmonic functions on infinite penny graphs.
method Asymptotically sharp dimensional estimate for ancient solutions of the heat equation.
result Proved the asymptotically sharp dimensional estimate.

Method improves microbial biomass yield estimation from noisy data.

problem Estimating microbial biomass yields from noisy cell counts and substrate measurements.
method Probabilistic macrochemical modeling to relax cell weight assumptions and improve robustness.
result Model provides accurate uncertainty estimates of key parameters.

Paper characterizes DLN distribution, its properties, and estimation methods.

problem No specific problem stated, focuses on DLN distribution properties.
method Characterization of PDF, CDF, moments; generalization to N-dimensions; methods to handle double-exponential nature.
result Characterization of DLN distribution and its properties, including estimation methods.

We obtain area growth estimates for constant mean curvature graphs in E(κ,τ)\mathbb{E}(κ,τ)-spaces with κ0κ\leq 0, by finding sharp upper bounds for the volume of geodesic balls in E(κ,τ)\mathbb{E}(κ,τ). We focus on complete graphs and graphs with zero boundary values. For instance, we prove that entire graphs in $\mathbb{E}(κ…

2015-04-20abs ↗pdf ↗

Enhanced Gordon growth model for valuing financial products.

problem Valuation of financial products with time-varying interest rates and dividends.
method Dynamic Gordon growth model with time-varying spot interest rate and dividends, risk-neutral valuation, locally risk-minimizing strategy.
result Pricing and hedging formulas for dividend-paying European options and equity-linked life insurance products.

We study volume growth, entropy and stability for translating solitons of mean curvature flow. First, we prove that every complete properly immersed translator has at least linear volume growth. Then, by using Huisken's monotonicity formula, we compute the entropy of the grim reaper and the bowl solitons. We also give …

2016-12-15abs ↗pdf ↗

We first estimate the average growth of a company's annual income and its variance by using both real company data and a numerical model which we already introduced a couple of years ago. Investment strategies expecting for income growth is evaluated based on the numerical model. Our numerical simulation suggests the p…

2003-03-17abs ↗pdf ↗

Introduced by Gromov in the nineties, the systolic growth of a Lie group gives the smallest possible covolume of a lattice with a given systole. In a simply connected nilpotent Lie group, this function has polynomial growth, but can grow faster than the volume growth. We express this systolic growth function in terms o…

2016-12-02abs ↗pdf ↗

TLRF improves timely COVID-19 outbreak detection with small sample size counties.

problem Balancing accuracy and speed in estimating COVID-19 case growth rates.
method Transfer Learning Random Forest (TLRF) framework for growth rate estimation.
result TLRF outperforms existing methods in predicting case growth rates and timely outbreak detection.

In this article we use Ricci flow to show that complete PIC1 manifolds with maximal volume growth are diffeomorphic to Rn\mathbb{R}^n. One of the key ingredients is local estimates of curvature lower bounds on an initial time interval of the Ricci flow. As another application of these estimates we obtain pseudolocality…

2018-11-08abs ↗pdf ↗

In this paper we derive a precise estimate on the growth of potential functions of complete noncompact shrinking solitons. Based on this, we prove that a complete noncompact gradient shrinking Ricci soliton has at most Euclidean volume growth. The latter result can be viewed as an analog of the well-known theorem of Bi…

2009-03-23abs ↗pdf ↗

Estimates area and spectrum of stable minimal surfaces in Euclidean and hyperbolic spaces.

problem Estimating the growth of area and spectrum of stable minimal surfaces.
method Elementary argument and stability inequality for Euclidean space; explicit area growth estimate for hyperbolic space; scalar curvature lower bound for spectrum.
result Minimal surfaces in Euclidean space grow like the Euclidean plane, and in hyperbolic space, explicit area growth estimates are derived.

We construct unbounded positive C2C^2-solutions of the equation Δu+Ku(n+2)/(n2)=0Δu + K u^{(n + 2)/(n - 2)} = 0 in Rn{\R}^n (equipped with Euclidean metric gog_o) such that KK is bounded between two positive numbers in Rn{\R}^n, the conformal metric g=u4/(n2)gog = u^{4/(n - 2)} g_o is complete, and the volume growth of gg can be arbitrarily…

2000-02-01abs ↗pdf ↗

In this paper, we show an optimal volume growth for self-shrinkers, and estimate a lower bound of the first eigenvalue of L\mathcal{L} operator on self-shrinkers, inspired by the first eigenvalue conjecture on minimal hypersurfaces in the unit sphere by Yau \cite{SY}. By the eigenvalue estimates, we can prove a compac…

2011-01-07abs ↗pdf ↗

By applying an average method in PDE, we obtain a dichotomy between "constancy" and "infinity" of the warping functions on complete noncompact Riemannian manifolds for an appropriate isometric immersion of a multiply warped product manifold N1×f2N2××fkNkN_1\times_{f_2} N_2 \times \cdots \times _{f_k} N_k\, into a Riemannian mani…

2018-09-15abs ↗pdf ↗

Study geometric and analytical properties of ρρ-Einstein solitons.

problem Characterize geometric and analytical features of ρρ-Einstein solitons.
method Analyze the spectrum of the drifted Laplacian operator and prove volume growth estimates.
result Establish new volume growth estimates for geodesic balls of complete noncompact ρρ-Einstein solitons.

Framework generates realistic crop images for growth modeling.

problem Modeling crop growth over time with precision and detail.
method Two-stage framework: image prediction and growth estimation models.
result Framework accurately predicts crop images with varying conditions.

Bayesian Causal Forests model assesses part-time work's impact on student growth.

problem Estimating causal effects of part-time work on student growth in mathematics achievement.
method Longitudinal Bayesian Causal Forests model combining non-parametric and difference-in-differences methods.
result Negative impact of part-time work for most students, potential benefits for those with low school belonging, widening achievement gap identified.