Results 1 to 10 of about 331,959 (146)

To the generalization of the Newton-Kantorovich theorem. [PDF]

open access: yesVisnik Harkivsʹkogo Nacionalʹnogo Universitetu im. V.N. Karazina. Cepiâ Matematika, Prikladna Matematika i Mehanika, 2017
Constructive conditions for solvability are obtained, as well as an iterative scheme for finding solutions of the nonlinear equation that generalize the well-known Newton-Kantorovich theorem.
S. M. Chuiko
doaj   +4 more sources

Remarks on the Afriat's Theorem and the Monge-Kantorovich Problem [PDF]

open access: yesSSRN Electronic Journal, 2013
The famous Afriat's theorem from the theory of revealed preferences establishes necessary and suffient conditions for existence of utility function for a given set of choices and prices. The result on existence of a {\it homogeneous} utility function can be considered as a particular fact of the Monge-Kantorovich mass transportation theory.
Kolesnikov, Alexander V.   +2 more
openaire   +5 more sources

Approximation properties of λ-Kantorovich operators

open access: yesJournal of Inequalities and Applications, 2018
In the present paper, we study a new type of Bernstein operators depending on the parameter λ∈[−1,1] $\lambda\in[-1,1]$. The Kantorovich modification of these sequences of linear positive operators will be considered.
Ana-Maria Acu   +2 more
doaj   +3 more sources

A Newton-Kantorovich-SOR type theorem

open access: yesOpen Mathematics, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Finta Béla
doaj   +3 more sources

Equivalent theorem of approximation by linear combination of weighted Baskakov–Kantorovich operators in Orlicz spaces

open access: yesJournal of Inequalities and Applications, 2019
In this paper, we introduce the Orlicz space corresponding to the Young function and, by virtue of the equivalent theorem between the modified K-functional and modulus of smoothness, establish the direct, inverse, and equivalent theorems for linear ...
Ling-Xiong Han, Bai-Ni Guo, Feng Qi
doaj   +3 more sources

Higher order Kantorovich-type Szász–Mirakjan operators

open access: yesJournal of Inequalities and Applications, 2022
In this paper, we define new higher order Kantorovich-type Szász–Mirakjan operators, we give some approximation properties of these operators in terms of various moduli of continuity. We prove a local approximation theorem, a Korovkin-type theorem, and a
Pembe Sabancigil   +2 more
doaj   +1 more source

A new kind of variant of the Kantorovich type modification operators introduced by D. D. Stancu

open access: yesResults in Applied Mathematics, 2021
In the present article we investigate a variant of the Kantorovich type modification defined by Kajla (2018) i.e. we introduce a function ζ(ϰ)in the operators defined by Kajla (2018) s.t.
Abhishek Kumar
doaj   +1 more source

Dunkl generalization of q-Szász-Mirakjan Kantorovich operators which preserve some test functions

open access: yesJournal of Inequalities and Applications, 2016
In this paper we introduce q-Szász-Mirakjan-Kantorovich operators generated by a Dunkl generalization of the exponential function and we propose two different modifications of the q-Szász-Mirakjan-Kantorovich operators which preserve some test functions.
Mohammad Mursaleen   +2 more
doaj   +1 more source

Extensions of Kantorovich-type theorems for Newton’s method [PDF]

open access: yesApplicationes Mathematicae, 2020
Summary: We extend the applicability of Newton's method, so we can approximate a locally unique solution of a nonlinear equation in a Banach space setting in cases not covered before. To achieve this, we find a more precise set containing the Newton iterates than in earlier works.
Argyros, Ioannis K.   +2 more
openaire   +2 more sources

The convergence theorem for fourth-order super-Halley method in weaker conditions

open access: yesJournal of Inequalities and Applications, 2016
In this paper, we establish the Newton-Kantorovich convergence theorem of a fourth-order super-Halley method under weaker conditions in Banach space, which is used to solve the nonlinear equations.
Lin Zheng
doaj   +1 more source

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