Results 31 to 40 of about 317,488 (309)

Approximation by q-Bernstein-Stancu-Kantorovich operators with shifted knots of real parameters [PDF]

open access: yesFilomat, 2022
Our main purpose of this article is to study the convergence and other related properties of q-Bernstein-Kantorovich operators including the shifted knots of real positive numbers.
M. Mursaleen   +2 more
semanticscholar   +1 more source

APPROXIMATION OF CLASSES OF PERIODIC MULTIVARIABLE FUNCTIONS BY LINEAR POSITIVE OPERATORS [PDF]

open access: yes, 2006
In an N-dimensional space, we consider the approximation of classes of translation-invariant periodic functions by a linear operator whose kernel is the product of two kernels one of which is positive.
Bushev, Dmytro Mykolayovych   +3 more
core   +1 more source

A generalization of Kantorovich operators for convex compact subsets [PDF]

open access: yes, 2016
In this paper we introduce and study a new sequence of positive linear operators acting on function spaces defined on a convex compact subset. Their construction depends on a given Markov operator, a positive real number and a sequence of probability ...
Altomare, Francesco   +3 more
core   +2 more sources

Approximation numbers of composition operators on $H^p$ spaces of Dirichlet series [PDF]

open access: yes, 2015
By a theorem of Bayart, $\varphi$ generates a bounded composition operator on the Hardy space $\Hp$of Dirichlet series ($1\le p1/2$ if $c_0=0$ and is either identically zero or maps the right half-plane into itself if $c_0$ is positive.
Bayart, Frédéric   +2 more
core   +3 more sources

Statistical rates in approximation by positive linear operators [PDF]

open access: yesMiskolc Mathematical Notes, 2011
This study is the continuation of our former work [O. Duman and E. Erkus,, Comput. Math. Appl. 52 (2006) 967-974] in which we obtained a statistical Korovkin-type approximation theorem for a sequence of positive linear operators defined on the space of all real-valued continuous and 2 pi periodic functions on the real m-dimensional space. In this paper,
openaire   +3 more sources

Approximation numbers of composition operators on the $H^2$ space of Dirichlet series [PDF]

open access: yes, 2014
By a theorem of Gordon and Hedenmalm, $\varphi$ generates a bounded composition operator on the Hilbert space $\mathscr{H}^2$ of Dirichlet series $\sum_n b_n n^{-s}$ with square-summable coefficients $b_n$ if and only if $\varphi(s)=c_0 s+\psi(s)$, where
Queffélec, Hervé, Seip, Kristian
core   +1 more source

Large N limit of SO(N) gauge theory of fermions and bosons [PDF]

open access: yes, 2002
In this paper we study the large N_c limit of SO(N_c) gauge theory coupled to a Majorana field and a real scalar field in 1+1 dimensions extending ideas of Rajeev. We show that the phase space of the resulting classical theory of bilinears, which are the
Aoki K.   +18 more
core   +2 more sources

Statistical fuzzy approximation by fuzzy positive linear operators

open access: yesComputers & Mathematics with Applications, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Anastassiou, George A., Duman, Oktay
openaire   +2 more sources

Statistical Blending-Type Approximation by a Class of Operators That Includes Shape Parameters λ and α

open access: yesMathematics, 2022
This paper is devoted to studying the statistical approximation properties of a sequence of univariate and bivariate blending-type Bernstein operators that includes shape parameters α and λ and a positive integer.
Qingbo Cai   +3 more
semanticscholar   +1 more source

Approximation of functions of two variables by certain linear positive operators

open access: yes, 2007
We introduce certain linear positive operators and study some approximation properties of these operators in the space of functions, continuous on a compact set, of two variables.
Bascanbaz-Tunca, Gulen   +2 more
core   +1 more source

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