Results 11 to 20 of about 2,007 (185)

On the Study of Oscillating Viscous Flows by Using the Adomian-Padé Approximation

open access: yesJournal of Applied Mathematics, 2015
The Adomian-Padé technique is applied to examine two oscillating viscous flows, the Stokes’ second problem and the pressure-driven pulsating flow. Main purposes for studying oscillating flows are not only to verify the accuracy of the approximation ...
Chi-Min Liu
doaj   +2 more sources

Padé Approximant and Minimax Rational Approximation in Standard Cosmology

open access: yesGalaxies, 2016
The luminosity distance in the standard cosmology as given by ΛCDM and, consequently, the distance modulus for supernovae can be defined by the Padé approximant.
Lorenzo Zaninetti
doaj   +2 more sources

Analytical Dual Flip Angle R1 Calculation Outside the Small-Angle Regime. [PDF]

open access: yesMagn Reson Med
ABSTRACT Purpose To evaluate a new analytical estimator for R1 and apparent proton density (A$$ A $$) from short‐TR dual flip angle data which does not rely on the small flip angle approximation and can thus be applied to a broader range of data, especially where relatively large flip angles are needed to achieve sufficient T1‐weighting for R1 ...
Edwards LJ   +6 more
europepmc   +2 more sources

Local-Hybrid Functional With a Composite Local Mixing Function Built From a Neural Network and a Strong-Correlation Model. [PDF]

open access: yesJ Comput Chem
A new local hybrid functional, LH25nP, is reported, that uses a neural‐network local mixing function for the position‐dependence of exact‐exchange admixture trained with a human‐designed strong‐correlation factor. It thereby escapes the usual zero‐sum game between delocalization and static‐correlation errors.
Wodyński A, Kaupp M.
europepmc   +2 more sources

The quadratic Hermite-Padé approximation [PDF]

open access: yes, 1989
This thesis is concerned with the existence, behaviour and performance of the quadratic Hermite-Padé approximation. It starts with the definition of the general Hermite-Padé approximation. Some of the problems which arise, particularly those of finding
Brookes, Richard G.
core   +1 more source

Series Expansion and Fourth-Order Global Padé Approximation for a Rough Heston Solution

open access: yesMathematics, 2020
The rough Heston model has recently been shown to be extremely consistent with the observed empirical data in the financial market. However, the shortcoming of the model is that the conventional numerical method to compute option prices under it requires
Siow Woon Jeng, Adem Kilicman
doaj   +1 more source

Robust Padé Approximation via SVD. [PDF]

open access: yes, 2013
Padé approximation is considered from the point of view of robust methods of numerical linear algebra, in particular, the singular value decomposition. This leads to an algorithm for practical computation that bypasses most problems of solution of nearly-
Gonnet, P   +6 more
core   +1 more source

A New Biased Model Order Reduction for Higher Order Interval Systems

open access: yesAdvances in Electrical and Electronic Engineering, 2016
This paper presents a new biased method for order reduction of linear continuous time interval systems. This method is based on the Stability equation method, Pade approximation and Kharitonov’s theorem. The higher order interval system is represented by
Mangipudi Siva Kumar, Gulshad Begum
doaj   +1 more source

The GDTM-Padé Technique for the Nonlinear Lattice Equations

open access: yesAbstract and Applied Analysis, 2012
The GDTM-Padé technique is a combination of the generalized differential transform method and the Padé approximation. We apply this technique to solve the two nonlinear lattice equations, which results in the high accuracy of the GDTM-Padé solutions ...
Junfeng Lu
doaj   +1 more source

Differential Quadrature Method for Fully Intrinsic Equations of Geometrically Exact Beams

open access: yesAerospace, 2022
In this paper, a differential quadrature method of high-order precision (DQ−Pade), which is equivalent to the generalized Pade approximation for approximating the end of a time or spatial interval, is used to solve nonlinear fully intrinsic equations of ...
Lidao Chen, Yong Liu
doaj   +1 more source

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