Results 61 to 70 of about 102,915 (146)
Random Homogenization in a Domain with Light Concentrated Masses
In the paper, we consider an elliptic problem in a domain with singular stochastic perturbation of the density located near the boundary, depending on a small parameter.
Gregory A. Chechkin +1 more
doaj +1 more source
Likelihood inference for small variance components
In this paper, we develop likelihood-based methods for making inferences about the components of variance in a general normal mixed linear model. In particular, we use local asymptotic approximations to construct confidence intervals for the components ...
Stern, S.E., Welsh, A.H.
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Asymptotic estimates of the solution for a singularly perturbed Cauchy problem
The article focuses on the initial problem for a third-order linear integro-differential equation with a small parameter at the higher derivatives, assuming that the roots of the additional characteristic equation have opposite signs.
N.U. Bukanay +2 more
doaj +1 more source
Robust generalized cross-validation for choosing the regularization parameter
Let fλ be the regularized solution for the problem of estimating a function or vector f0 from noisy data yi ≤ Lif0 + εi, i ≤ 1, ..., n, where Li are linear functionals.
Lukas, M.A.
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Consistent parameter estimation for partially observed diffusions with small noise [PDF]
International audienceIn this paper we provide a consistency result for the MLE for partially observed diffusion processes with small noise intensities. We prove that if the underlying deterministic system enjoys an identifiability property, then any MLE
James, Matthew R., Le Gland, François
core +1 more source
An approximate group classification of a perturbed subdiffusion equation
A problem of the Lie point approximate symmetry group classification of a perturbed subdiffusion equation with a small parameter is solved. The classification is performed with respect to anomalous diffusion coefficient which is considered as a function ...
Stanislav Yu Lukashchuk
doaj +1 more source
In this paper the contact problem of a rigid sphere against an elastic plastic sphere and a spherical elastic plastic cavity is studied by means of finite element simulation for a wide range of radius ratios.
陈伟民 +3 more
core +1 more source
Bootstrap for estimating the mean squared error of the spatial EBLUP [PDF]
This work assumes that the small area quantities of interest follow a Fay-Herriot model with spatially correlated random area effects. Under this model, parametric and nonparametric bootstrap procedures are proposed for estimating the mean squared ...
MOLINA ISABEL +6 more
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Regular maps with small parameters [PDF]
AbstractRegular maps of type {p, q}r and the associated groups Gp,q,r are considered for small values for p, q and r. In particular, it is shown that the groups G4,6,6 and G5,5,6 are Abelian-by-infinite, and there are infinitely many regular maps of each of the types {4, 6}6, {5, 5}6, {5, 6}6 and {6, 6}6.
openaire +2 more sources
A Global Approach to Parameter Estimation of Chaotic Dynamical Systems
We present a novel approach to parameter estimation of systems with complicated dynamics, as well as evidence for the existence of a universal power law that enables us to quantify the dependence of global geometry on small changes in the ...
Siapas, Athanassios G.
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