Results 51 to 60 of about 63,646 (142)

Preserving properties of some Szasz-Mirakyan type operators

open access: yesJournal of Numerical Analysis and Approximation Theory
For a family of Szasz-Mirakyan type operators we prove that they preserve convex-type functions and that a monotonicity property verified by Cheney and Sharma in the case Szasz-Mirakyan operators holds for the variation study here.
Jorge Bustamante
doaj   +1 more source

IMPLEMENTATION OF 3D VOF TRACKING ALGORITHM BASED ON BINARY SPACE-PARTITIONING

open access: yesActa Polytechnica, 2017
The paper focuses on modelling free surface flow. The interface is modelled using the Volume-Of-Fluid method, where the advection of volume fractions is treated by a purely geometrical method.
Filip Kolařík, Bořek Patzák
doaj   +1 more source

On Szász-Mirakyan type operators preserving polynomials

open access: yesJournal of Numerical Analysis and Approximation Theory, 2017
In this paper, a modification of Szász-Mirakyan operators is studied [1] which generalizes the Szász-Mirakyan operators with the property that the linear combination \(e_2 + \alpha e_1\) of the Korovkin's test functions \(e_1\) and \(e_2\) are ...
Ovgu Gurel Yilmaz   +2 more
doaj   +2 more sources

A novel parameterized multiquadric quasi-interpolation operator with its optimal parameters

open access: yesResults in Applied Mathematics
The shape parameter c plays a crucial role in determining the accuracy and effectiveness of multiquadric quasi-interpolation algorithm. However, a few works discuss the shape parameter c in multiquadric quasi-interpolation operator.
Hualin Xiao, Dan Qu
doaj   +1 more source

Shape preserving properties of the Bernstein polynomials with integer coefficients

open access: yesAnnual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and Informatics, 2019
The Bernstein polynomials with integer coefficients do not generally preserve monotonicity and convexity. We establish sufficient conditions under which they do. We also observe that they are asymptotically shape preserving.
openaire   +3 more sources

Approximation and Shape Preserving Properties of Neural Network Operators

open access: yesResults in Mathematics
Abstract In this paper, approximation and shape preserving properties for the so-called neural network (NN) operators have been faced. First, the case of the general NN operators based on sigmoidal function has been considered; moreover, theorems relating to uniform convergence, Korovkin-type results, and endpoint behavior have been ...
Ana-Maria Acu   +3 more
openaire   +1 more source

Proper hereditary shape equivalences preserve property C

open access: yesTopology and its Applications, 1985
A space X has property C provided each sequence \(\{\) \({\mathcal U}_ n: n\in N\}\) of open covers of X admits an open cover \({\mathcal V}=\cup \{{\mathcal V}_ n: n\in N\}\) of X such that for each n, \({\mathcal V}_ n\) refines \({\mathcal U}_ n\) and is a collection of pairwise disjoint sets.
openaire   +1 more source

Shape-Preserving and Convergence Properties for the q-Szász-Mirakjan Operators for Fixed q∈(0,1)

open access: yesAbstract and Applied Analysis, 2014
We introduce a q-generalization of Szász-Mirakjan operators Sn,q and discuss their properties for fixed q∈(0,1). We show that the q-Szász-Mirakjan operators Sn,q have good shape-preserving properties.
Heping Wang, Fagui Pu, Kai Wang
doaj   +1 more source

Shape-preserving and convergence properties for the \(q\)-Szász-Mirakjan operators for fixed \(q \in(0,1)\)

open access: yesAbstract and Applied Analysis, 2014
Summary: We introduce a \(q\)-generalization of Szász-Mirakjan operators \(S_{n, q}\) and discuss their properties for fixed \(q \in(0,1)\). We show that the \(q\)-Szász-Mirakjan operators \(S_{n, q}\) have good shape-preserving properties. For example, \(S_{n, q}\) are variation-diminishing, and preserve monotonicity, convexity, and concave modulus of
Wang, Heping, Pu, Fagui, Wang, Kai
openaire   +4 more sources

On Soardi's Bernstein operators of second kind

open access: yesJournal of Numerical Analysis and Approximation Theory, 2000
We solve a problem, raised by Paolo Soardi, concerning the shape preserving properties of the Bernstein operators of second kind. We establish also a Voronovskaja-type formula for these operators.
Ioan Raşa
doaj   +2 more sources

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