Results 1 to 10 of about 46,297 (150)

Estimating the Local Radius of Convergence for Picard Iteration [PDF]

open access: yesAlgorithms, 2017
In this paper, we propose an algorithm to estimate the radius of convergence for the Picard iteration in the setting of a real Hilbert space. Numerical experiments show that the proposed algorithm provides convergence balls close to or even identical to ...
Ştefan Măruşter
doaj   +6 more sources

Local Convergence and Radius of Convergence for Modified Newton Method [PDF]

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2017
We investigate the local convergence of modified Newton method, i.e., the classical Newton method in which the derivative is periodically re-evaluated.
Măruşter Ştefan
doaj   +3 more sources

Local convergence radius for the Mann-type iteration [PDF]

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2015
A procedure to estimate the local convergence radius for a Mann-type iteration is given in the setting of a finite dimensional space. In particular we obtain the estimation of radius for classical Newton method.
Măruşter Ştefan
doaj   +3 more sources

On the radius of convergence of q-series

open access: yesIndagationes Mathematicae, 1992
The main result of this paper is that for every ...
exaly   +3 more sources

Linear convergence of the NQZ algorithm for finding the H-spectral radius of nonnegative tensors. [PDF]

open access: yesPLoS ONE
The R-linear convergence of the NQZ algorithm for computing the H-spectral radius of a class of weakly irreducible nonnegative tensors is established by utilizing the directed graphs of tensors. Meanwhile, an upper bound for the root convergence factor R
Hongbin Lv, Meixiang Chen
doaj   +2 more sources

The effect of feedback on the Volterra series convergence radius

open access: yesФизика волновых процессов и радиотехнические системы, 2013
This paper describes the destructive effects of both external and internal feedback on the convergence of the iterative process for finding the Volterra kernels in strongly nonlinear electronic circuits. There is investigated the location of the critical
A.M. Bobreshov, N.N. Mymrikova
doaj   +1 more source

Convergence of hydrodynamic modes: insights from kinetic theory and holography

open access: yesSciPost Physics, 2021
We study the mechanisms setting the radius of convergence of hydrodynamic dispersion relations in kinetic theory in the relaxation time approximation.
Michal P. Heller, Alexandre Serantes, Michał Spaliński, Viktor Svensson, Benjamin Withers
doaj   +1 more source

Extended convergence analysis of Newton-Potra solver for equations

open access: yesJournal of Numerical Analysis and Approximation Theory, 2020
In the paper a local and a semi-local convergence of combined iterative process for solving nonlinear operator equations is investigated. This solver is built based on Newton solver and has R-convergence order 1.839....
Ioannis Argyros   +3 more
doaj   +7 more sources

Regularization of Diagrammatic Series with Zero Convergence Radius [PDF]

open access: yesPhysical Review Letters, 2010
The divergence of perturbative expansions for the vast majority of macroscopic systems, which follows from Dyson's collapse argument, prevents Feynman's diagrammatic technique from being directly used for controllable studies of strongly interacting systems.
Pollet, L   +2 more
openaire   +3 more sources

Elastic Theory Has Zero Radius of Convergence [PDF]

open access: yesPhysical Review Letters, 1996
Nonlinear elastic theory studies the elastic constants of a material (such as Young's modulus or bulk modulus) as a power series in the applied load. The inverse bulk modulus K, for example depends on the compression P: $ {1/ K(P)} = c_0 + c_1 P + c_2 P^2 \cdots + c_n P^n + \cdots $.
Buchel, Alex, Sethna, James P.
openaire   +3 more sources

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