Results 41 to 50 of about 11,295 (169)

ALGEBRAIC NONLINEARITY IN VOLTERRA-HAMMERSTEIN EQUATIONS [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 1999
Here a posteriori error estimate for the numerical solution of nonlinear Voltena- Hammerstein equations is given. We present an error upper bound for nonlinear Voltena-Hammastein integral equations, in which the form of nonlinearity is algebraic and ...
doaj  

A Mollification Regularization Method for the Inverse Source Problem for a Time Fractional Diffusion Equation

open access: yesMathematics, 2019
We consider a time-fractional diffusion equation for an inverse problem to determine an unknown source term, whereby the input data is obtained at a certain time. In general, the inverse problems are ill-posed in the sense of Hadamard. Therefore, in this
Le Dinh Long   +3 more
doaj   +1 more source

cgMSI: pathogen detection within species from nanopore metagenomic sequencing data

open access: yesBMC Bioinformatics, 2023
Background Metagenomic sequencing is an unbiased approach that can potentially detect all the known and unidentified strains in pathogen detection. Recently, nanopore sequencing has been emerging as a highly potential tool for rapid pathogen detection ...
Xu Zhu   +5 more
doaj   +1 more source

An a posteriori error estimator for model adaptivity in electrocardiology [PDF]

open access: yesComputer Methods in Applied Mechanics and Engineering, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mirabella, L., Nobile, F., Veneziani, A.
openaire   +2 more sources

A Posteriori Error Estimates for Axisymmetric and Nonlinear Problems

open access: yesAdvances in Computational Mathematics, 2001
Suppose \(x_1\), \(x_2\), \(x_3\) denote the cylidrical coordinates in \(\mathbb{R}^3\). The authors first study the axisymmetric solution of \[ -\sum^3_{i=1} {\partial\over\partial x_i} \Biggl(A_i{\partial U\over\partial x_i}\Biggr)= F, \] in a rotation body with mixed Dirichlet and Neumann boundary conditions in order to establish a posteriori ...
Krízek, M, Nemec, J, Vejchodský, T
openaire   +4 more sources

On the Influence of the Extrinsic Information Scaling Coefficient on the Performance of Single and Double Binary Turbo Codes

open access: yesAdvances in Electrical and Computer Engineering, 2013
This paper presents a study on the influence of the extrinsic information scaling coefficient value (eic) on the bit and frame error rate (BER/FER), for single and double binary turbo codes (S/DBTC) decoded with maximum a posteriori (MAP) and maximum ...
BALTA, H., DOUILLARD, C.
doaj   +1 more source

A Posteriori Error Estimates for Maxwell’s Eigenvalue Problem

open access: yesJournal of Scientific Computing, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Daniele Boffi   +3 more
openaire   +4 more sources

Nodal auxiliary a posteriori error estimates

open access: yesMathematics of Computation
We introduce and explain key relations between a posteriori error estimates and subspace correction methods viewed as preconditioners for problems in infinite dimensional Hilbert spaces. We set the stage using the Finite Element Exterior Calculus and Nodal Auxiliary Space Preconditioning.
Yuwen Li 0001, Ludmil T. Zikatanov
openaire   +3 more sources

Singular Cauchy Problem for a Nonlinear Fractional Differential Equation

open access: yesMathematics
The paper studies a nonlinear equation including both fractional and ordinary derivatives. The singular Cauchy problem is considered. The theorem of the existence of uniqueness of a solution in the neighborhood of a fixed singular point of algebraic type
Victor Orlov
doaj   +1 more source

divand-1.0: n-dimensional variational data analysis for ocean observations [PDF]

open access: yesGeoscientific Model Development, 2014
A tool for multidimensional variational analysis (divand) is presented. It allows the interpolation and analysis of observations on curvilinear orthogonal grids in an arbitrary high dimensional space by minimizing a cost function.
A. Barth   +4 more
doaj   +1 more source

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