Results 11 to 20 of about 306,033 (284)

On of solving nonlinear Noether integral-differential boundary value problems by the of Newton-Kantorovich method

open access: yesНауковий вісник Ужгородського університету. Серія: Математика і інформатика, 2018
Constructive conditions for the existence of a nonlinear Noether integral-differential boundary value problem are found. An iterative scheme with quadratic convergence is constructed to find the solution of a nonlinear integral-differential boundary ...
С. М. Чуйко   +2 more
doaj   +1 more source

A new approach for the bigeometric newton method

open access: yesMANAS: Journal of Engineering, 2023
In this study, quadratic convergent new bigeometric Newton's method (nBGNM) was developed. For this, the basic definitions and theorems of bigeometric analysis, which is one of the non-Newtonian analysis, were used. Using the bigeometric Taylor expansion,
Numan Yalçın, Ercan Celık
doaj   +1 more source

Analyzing weak lensing of the cosmic microwave background using the likelihood function [PDF]

open access: yes, 2002
Future experiments will produce high-resolution temperature maps of the cosmic microwave background (CMB) and are expected to reveal the signature of gravitational lensing by intervening large-scale structures.
Hirata, Christopher M., Seljak, Uroš
core   +2 more sources

Quadratic convergence of vortex methods [PDF]

open access: yesMathematics of Computation, 1989
We prove quadratic convergence for two-dimensional vortex methods with positive cutoffs. The result is established for flows with initial vorticity three times continuously differentiable and compact support. The proof is based on a refined version of a convergence result.
openaire   +1 more source

On the convergence of the quadratic method [PDF]

open access: yes, 2014
The convergence of the so-called quadratic method for computing eigenvalue enclosures of general self-adjoint operators is examined. Explicit asymptotic bounds for convergence to isolated eigenvalues are found.
Boulton, Lyonell, Hobiny, Aatef
core   +3 more sources

A structure-preserving doubling algorithm for solving a class of quadratic matrix equation with M-matrix

open access: yesElectronic Research Archive, 2022
Consider the problem of finding the maximal nonpositive solvent $ \varPhi $ of the quadratic matrix equation (QME) $ X^2 + BX + C = 0 $ with $ B $ being a nonsingular $ M $-matrix and $ C $ an $ M $-matrix such that $ B^{-1}C\ge 0 $. Such QME arises from
Cairong Chen
doaj   +1 more source

Nonquadratic estimators of a quadratic functional [PDF]

open access: yes, 2005
Estimation of a quadratic functional over parameter spaces that are not quadratically convex is considered. It is shown, in contrast to the theory for quadratically convex parameter spaces, that optimal quadratic rules are often rate suboptimal.
Cai, T. Tony, Low, Mark G.
core   +4 more sources

Approximate Zeros of Quadratically Convergent Algorithms [PDF]

open access: yesMathematics of Computation, 1994
Smale’s condition for a point to be an approximate zero of a function for Newton’s method is extended to the general quadratically convergent iterative algorithm. It is shown in which way the bound in the condition is affected by the characteristics of the algorithm.
openaire   +1 more source

The Polynomial Pivots as Initial Values for a New Root-Finding Iterative Method

open access: yesJournal of Applied Mathematics, 2015
A new iterative method for polynomial root-finding based on the development of two novel recursive functions is proposed. In addition, the concept of polynomial pivots associated with these functions is introduced.
Mario Lázaro   +3 more
doaj   +1 more source

New convergence analysis of a class of smoothing Newton-type methods for second-order cone complementarity problem

open access: yesAIMS Mathematics, 2022
In this paper we propose a class of smoothing Newton-type methods for solving the second-order cone complementarity problem (SOCCP). The proposed method design is based on a special regularized Chen-Harker-Kanzow-Smale (CHKS) smoothing function. When the
Li Dong, Jingyong Tang
doaj   +1 more source

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