Results 31 to 40 of about 85,893 (168)

On ( p , q ) $(p,q)$ -Szász-Mirakyan operators and their approximation properties

open access: yesJournal of Inequalities and Applications, 2017
In the present paper, we introduce a new modification of Szász-Mirakyan operators based on ( p , q ) $(p, q)$ -integers and investigate their approximation properties. We obtain weighted approximation and Voronovskaya-type theorem for new operators.
M Mursaleen   +2 more
doaj   +1 more source

Complexity of Weighted Approximation over Rd

open access: yesJournal of Complexity, 2000
AbstractWe study approximation of multivariate functions defined over Rd. We assume that all rth order partial derivatives of the functions considered are continuous and uniformly bounded. Approximation algorithms U(f) only use the values of f or its partial derivatives up to order r.
Grzegorz W. Wasilkowski   +1 more
openaire   +1 more source

Certain Generalized q-Operators

open access: yesDemonstratio Mathematica, 2015
The applications of q-calculus in the approximation theory is a very interesting area of research in the recent years, several new q-operators were introduced and their behaviour were discussed by many researchers.
Prakash Om   +2 more
doaj   +1 more source

Approximate BDD Minimization by Weighted A. [PDF]

open access: yes2009 IEEE International Symposium on Circuits and Systems, 2009
Reduced ordered Binary Decision Diagrams (BDDs) are a data structure for efficient representation and manipulation of Boolean functions. They are frequently used in logic synthesis. The size of BDDs depends on a chosen variable ordering, i.e. the size may vary from linear to exponential, and the existence of a polynomial algorithm to approximate the ...
Rüdiger Ebendt, Rolf Drechsler
openaire   +6 more sources

Riemann–Liouville Fractional Integral Form of Modified Baskakov-Type Operators: Approximation Properties and Statistical Convergence

open access: yesMathematics
In this paper, a generalized sequence of Baskakov operators connected to the Riemann–Liouville fractional integral is introduced. These sequences of operators deal with smooth approximation behavior in a wider class, i.e., a class of measurable functions
Tripuresh Mishra   +3 more
doaj   +1 more source

A new approach to nonlinear singular integral operators depending on three parameters

open access: yesOpen Mathematics, 2016
In this paper, we present some theorems on weighted approximation by two dimensional nonlinear singular integral operators in the following form: Tλ(f;x,y)=∬R2Kλ(t−x,s−y,f(t,s))dsdt,(x,y)∈R2,λ∈Λ,$${T_\lambda }(f;x,y) = \iint\limits_{{\mathbb{R}^2}}K_ ...
Uysal Gumrah
doaj   +1 more source

Chebyshev Approximations by Least Squares Method

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2020
We consider the problem of linear approximation in the form of the minimization problem of the weighted Chebyshev norm, and that in the form of the minimization problem of the weighted Euclidean norm of the residual vector.
V.I. Zorkaltsev, E. V. Gubiy
doaj   +1 more source

On Weighted Polynomial Approximation With Gaps [PDF]

open access: yesNagoya Mathematical Journal, 2005
Let α be a nonnegative continuous function on ℝ. In this paper, the author obtains a necessary and sufficient condition for polynomials with gaps to be dense in Cα, where Cα is the weighted Banach space of complex continuous functions ƒ on ℝ with ƒ(t) exp(−α(t)) vanishing at infinity.
openaire   +3 more sources

Approximation by weighted polynomials

open access: yesJournal of Approximation Theory, 2003
The paper is devoted to the study of approximation by weighted polynomials. The author proves that if \(xQ'(x)\) is increasing on \((0,\infty)\) and \(w(x)= \exp(-Q(x))\) is the corresponding weight on \([0,\infty)\), then every continuous function that vanishes outside.
openaire   +1 more source

Rigorous approximated determinization of weighted automata [PDF]

open access: yesTheoretical Computer Science, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Benjamin Aminof   +2 more
openaire   +1 more source

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