Results 11 to 20 of about 2,420,035 (290)

Cardinal approximation of functions by splines on an interval

open access: yesMathematical Modelling and Analysis, 2009
The cardinal interpolant of functions on the real line by splines is determined by certain formula free of solving large or infinite systems. We apply this formula to functions given on the interval [0,1] introducing special extensions of functions from [
Gennadi Vainikko
doaj   +1 more source

Multiadaptive Galerkin Methods for ODEs III: A Priori Error Estimates [PDF]

open access: yes, 2006
The multiadaptive continuous/discontinuous Galerkin methods mcG(q) and mdG(q) for the numerical solution of initial value problems for ordinary differential equations are based on piecewise polynomial approximation of degree q on partitions in time with ...
Anders Logg   +8 more
core   +1 more source

Errors on errors – Estimating cosmological parameter covariance [PDF]

open access: yesProceedings of the International Astronomical Union, 2014
AbstractCurrent and forthcoming cosmological data analyses share the challenge of huge datasets alongside increasingly tight requirements on the precision and accuracy of extracted cosmological parameters. The community is becoming increasingly aware that these requirements not only apply to the central values of parameters but, equally important, also
Joachimi, Benjamin, Taylor, Andy
openaire   +2 more sources

Data filtering based stochastic gradient algorithms for multivariable CARAR-like systems

open access: yesMathematical Modelling and Analysis, 2013
This paper considers identification problems for a multivariable controlled autoregressive system with autoregressive noises. A hierarchical generalized stochastic gradient algorithm and a filtering based hierarchical stochastic gradient algorithm are ...
Dongqing Wang, Tong Shan, Rui Ding
doaj   +1 more source

CAVEAT ON THE ERROR ANALYSIS FOR STEREOLOGICAL ESTIMATES

open access: yesImage Analysis and Stereology, 2011
It is frequently asked that how big a sample size, or how much measurement, is needed to achieve an accuratestereological estimate. The observed total error of a stereological estimate arises from individual difference (i.e.
Zhengwei Yang   +3 more
doaj   +1 more source

Standard Error of Empirical Bayes Estimate in NONMEM® VI. [PDF]

open access: yes, 2012
The pharmacokinetics/pharmacodynamics analysis software NONMEM® output provides model parameter estimates and associated standard errors. However, the standard error of empirical Bayes estimates of inter-subject variability is not available. A simple and
Bae, Kyun-Seop   +4 more
core   +2 more sources

Error estimates for extrapolations with matrix-product states [PDF]

open access: yes, 2018
We introduce a new error measure for matrix-product states without requiring the relatively costly two-site density matrix renormalization group (2DMRG).
Haegeman, J., Hubig, C., Schollwöck, U.
core   +3 more sources

A high accuracy numerical method based on spectral theory of compact operator for biharmonic eigenvalue equations

open access: yesJournal of Inequalities and Applications, 2016
In this study, a high accuracy numerical method based on the spectral theory of compact operator for biharmonic eigenvalue equations on a spherical domain is developed.
Zhendong Luo
doaj   +1 more source

Local convergence of the FEM for the integral fractional Laplacian

open access: yes, 2020
We provide for first order discretizations of the integral fractional Laplacian sharp local error estimates on proper subdomains in both the local $H^1$-norm and the localized energy norm.
Faustmann, Markus   +2 more
core   +2 more sources

A fully-discrete finite element approximation for the eddy currents problem

open access: yesIngeniería y Ciencia, 2013
The eddy current model is obtained from Maxwell’s equations by neglecting the displacement currents in the Amp`ere-Maxwell’s law and it is commonly used in many problems in sciences, engineering and industry (e.g, in induction heating, electromagnetic ...
Ramiro Acevedo, Gerardo Loaiza
doaj   +1 more source

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