نتایج جستجو برای: تقریب pade

تعداد نتایج: 4622  

2003
OLEG L. POLYANSKY JONATHAN TENNYSON

The superiority of the convergence behavior of effective rotational Hamiltonians expressed in terms of Pade approximants over more conventional power series Hamiltonians is well known. For diatomics it is suggested that the failure of the conventional expansions is due to singularities in the complex Jplane. This theory is supported by numerical calculations on rotationally excited Ha with both...

Journal: :Symmetry 2023

The temperature distribution in a conductive-radiative rectangular profiled annular fin with internal heat generation is scrutinized the present investigation. nonlinear variation of thermal conductivity and transfer coefficient governed by power law considered. analytical approximation for non-dimensional profile obtained using differential transform method (DTM)-Pade approximant. nondimension...

Journal: :Thermal Science 2022

In this paper, univariate Pade approximation is applied to fractional power sries solutions of integro-differential equations with non-local boundary conditions. As it seen from comparisons, gives reliable and numerical results.

2013
A. S. Darwich

QSP-10 APPLICATION OF AN IN SILICO PHYSIOLOGICALLY BASED PHARMACOKINETIC MODEL TO SIMULATE ORAL DRUG BIOAVAILABILITY OF ATORVASTATIN ACID AND CYCLOSPORINE POST BARIATRIC SURGERY. A. S. Darwich,1 D. Pade,2 K. Rowland-Yeo,2 M. Jamei,2 A. Åsberg,3 H. Christensen,3 D. M. Ashcroft,1 A. Rostami-Hodjegan1; 1Centre for Applied Pharmacokinetic Research, University of Manchester, Manchester, United Kingd...

2016
K. SENTHILKUMAR

This paper is devoted to introduce analytic solutions by Differential Transform Method-Pade approximants with theoretical study for the problem of the hydromagnetic flow due to a permeable stretching surface embedded in a porous medium in the presence of transverse magnetic field. The governing momentum equation which is a nonlinear partial differential equation is reduced into a nonlinear ordi...

2013
Govind Sharma Ankit Agarawal Vivek K. Dwivedi

In wireless communication the effect of multipath as well as shadowing takes place simultaneously over the channel and this phenomena leads to composite fading. G-distribution is frequently encountered distribution in wireless fading environment. Combination of multipath fading and shadowing model are used as composite fading model. This composite fading model is named as Gdistribution. G-distr...

2014
Andrea Mambrini Dario Izzo

We study a coarse grained parallelization scheme (thread based) aimed at solving complex multi-objective problems by means of decomposition. Our scheme is loosely based on the MOEA/D framework. The resulting algorithm, called Parallel Decomposition (PaDe), makes use of the asynchronous generalized island model to solve the various decomposed problems. Efficient exchange of chromosomic material ...

2010
Oscar P. Bruno Fernando Reitich

We present a method of enhanced convergence for the approximation of analytic functions. This method introduces conformal transformations in the approximation problems in order to help extract the values of a given analytic function from its Taylor expansion. We show that conformal transformations can extend the radius of convergence of a power series far into infinity, enhance substantially it...

2007
Philip Korman

We express radial solutions of semilinear elliptic equations on Rn as convergent power series in r, and then use Pade approximants to compute both ground state solutions, and solutions to Dirichlet problem. Using a similar approach we have discovered existence of singular solutions for a class of subcritical problems. We prove convergence of the power series by modifying the classical method of...

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