Results 31 to 40 of about 362,691 (237)

Asymptotic normality of quadratic estimators

open access: yesStochastic Processes and their Applications, 2016
We prove conditional asymptotic normality of a class of quadratic U-statistics that are dominated by their degenerate second order part and have kernels that change with the number of observations. These statistics arise in the construction of estimators in high-dimensional semi- and non-parametric models, and in the construction of nonparametric ...
Robins, J.M.   +3 more
openaire   +4 more sources

A Viscous Fluid Flow through a Thin Channel with Mixed Rigid-Elastic Boundary: Variational and Asymptotic Analysis

open access: yesAbstract and Applied Analysis, 2012
We study the nonsteady Stokes flow in a thin tube structure composed by two thin rectangles with lateral elastic boundaries which are connected by a domain with rigid boundaries.
R. Fares, G. P. Panasenko, R. Stavre
doaj   +1 more source

Asymptotic analysis of solutions to transmission problems in solids with many inclusions [PDF]

open access: yes, 2016
We construct an asymptotic approximation to the solution of a transmission problem for a body containing a region occupied by many small inclusions. The cluster of inclusions is characterised by two small parameters that determine the nominal diameter of
Nieves, Michael
core   +2 more sources

Inference for Inverse Power Lomax Distribution with Progressive First-Failure Censoring

open access: yesEntropy, 2021
This paper investigates the statistical inference of inverse power Lomax distribution parameters under progressive first-failure censored samples. The maximum likelihood estimates (MLEs) and the asymptotic confidence intervals are derived based on the ...
Xiaolin Shi, Yimin Shi
doaj   +1 more source

Asymptotic Rasmussen Invariant [PDF]

open access: yes, 2007
We use simple properties of the Rasmussen invariant of knots to study its asymptotic behaviour on the orbits of a smooth volume preserving vector field on a compact domain in the 3-space. A comparison with the asymptotic signature allows us to prove that
Baader, Sebastian
core   +4 more sources

Recursive parameter estimation: asymptotic expansion [PDF]

open access: yesAnnals of the Institute of Statistical Mathematics, 2008
We consider estimation procedures which are recursive in the sense that each successive estimator is obtained from the previous one by a simple adjustment. The model considered in the paper is very general as we do not impose any preliminary restrictions on the probabilistic nature of the observation process and cover a wide class of nonlinear ...
openaire   +3 more sources

Asymptotic Estimates of Hierarchical Modeling [PDF]

open access: yesMathematical Models and Methods in Applied Sciences, 2003
In this paper we propose a way to analyze certain classes of dimension reduction models for elliptic problems in thin domains. We develop asymptotic expansions for the exact and model solutions, having the thickness as small parameter. The modeling error is then estimated by comparing the respective expansions, and the upper bounds obtained make clear
Arnold, Douglas N.   +1 more
openaire   +1 more source

Fejer means of rational Fourier – Chebyshev series and approximation of function |x|s

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2019
Approximation properties of Fejer means of Fourier series by Chebyshev – Markov system of algebraic fractions and approximation by Fejer means of function |x|s, 0 < s < 2, on the interval [−1,1], are studied.
Pavel G. Patseika, Yauheni A. Rouba
doaj   +1 more source

Expanding solitons with non-negative curvature operator coming out of cones

open access: yes, 2012
We consider Ricci flow of complete Riemannian manifolds which have bounded non-negative curvature operator, non-zero asymptotic volume ratio and no boundary. We prove scale invariant estimates for these solutions.
Schulze, Felix, Simon, Miles
core   +1 more source

Probability Distributions for Quantum Stress Tensors Measured in a Finite Time Interval

open access: yes, 2015
A meaningful probability distribution for measurements of a quantum stress tensor operator can only be obtained if the operator is averaged in time or in spacetime. This averaging can be regarded as a description of the measurement process.
Fewster, Christopher J., Ford, L. H.
core   +1 more source

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