Results 11 to 20 of about 2,360,976 (284)

Oscillation in a posteriori error estimation [PDF]

open access: yesNumerische Mathematik, 2021
AbstractIn a posteriori error analysis, the relationship between error and estimator is usually spoiled by so-called oscillation terms, which cannot be bounded by the error. In order to remedy, we devise a new approach where the oscillation has the following two properties.
Christian Kreuzer, Andreas Veeser
openaire   +4 more sources

A Computational Technique for Solving Three-Dimensional Mixed Volterra–Fredholm Integral Equations

open access: yesFractal and Fractional, 2023
In this article, a novel and efficient approach based on Lucas polynomials is introduced for solving three-dimensional mixed Volterra–Fredholm integral equations for the two types (3D-MVFIEK2).
Amr M. S. Mahdy   +3 more
doaj   +1 more source

Mesh-Free MLS-Based Error-Recovery Technique for Finite Element Incompressible Elastic Computations

open access: yesApplied Sciences, 2023
The finite element error and adaptive analysis are implemented in finite element procedures to increase the reliability of numerical analyses. In this paper, the mesh-free error-recovery technique based on moving least squares (MLS) interpolation is ...
Nabil Ben Kahla   +2 more
doaj   +1 more source

Global error estimation of linear multistep methods through the Runge-Kutta methods [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2016
In this paper, we study the global truncation error of the linear multistep methods (LMM) in terms of local truncation error of the corresponding Runge-Kutta schemes. The key idea is the representation of LMM with a corresponding Runge-Kutta method.
Javad Farzi
doaj   +1 more source

DAEM: A Data- and Application-Aware Error Analysis Methodology for Approximate Adders

open access: yesInformation, 2023
Approximate adders are some of the fundamental arithmetic operators that are being employed in error-resilient applications, to achieve performance/energy/area gains.
Muhammad Abdullah Hanif   +2 more
doaj   +1 more source

An efficient Legendre-Galerkin approximation for the fourth-order equation with singular potential and SSP boundary condition

open access: yesOpen Mathematics, 2023
In this article, we develop an efficient Legendre-Galerkin approximation based on a reduced-dimension scheme for the fourth-order equation with singular potential and simply supported plate (SSP) boundary conditions in a circular domain. First, we deduce
Zou Shuimu, Zhang Jun
doaj   +1 more source

Can I Trust This Location Estimate? Reproducibly Benchmarking the Methods of Dynamic Accuracy Estimation of Localization

open access: yesSensors, 2022
Despite the great attention that the research community has paid to the creation of novel indoor positioning methods, a rather limited volume of works has focused on the confidence that Indoor Positioning Systems (IPS) assign to the position estimates ...
Grigorios G. Anagnostopoulos   +1 more
doaj   +1 more source

Goal Oriented Time Adaptivity Using Local Error Estimates

open access: yesAlgorithms, 2020
We consider initial value problems (IVPs) where we are interested in a quantity of interest (QoI) that is the integral in time of a functional of the solution. For these, we analyze goal oriented time adaptive methods that use only local error estimates.
Peter Meisrimel, Philipp Birken
doaj   +1 more source

Constrained Phase Noise Estimation in OFDM Using Scattered Pilots Without Decision Feedback [PDF]

open access: yes, 2016
In this paper, we consider an OFDM radio link corrupted by oscillator phase noise in the receiver, namely the problem of estimating and compensating for the impairment.
Mathecken, Pramod   +3 more
core   +2 more sources

Adaptive resizing-based multi-resolution particle method

open access: yesMechanical Engineering Journal, 2021
Multi-resolution techniques are essential for the performance of large-scale simulations of computational fluid dynamics with particle methods. In this study, a novel adaptive multi-resolution scheme has been developed for the least squares moving ...
Axel SÖDERSTEN   +4 more
doaj   +1 more source

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