Results 1 to 10 of about 221,329 (275)

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

Constrained Interpolation via Cubic Hermite Splines

open access: yesپژوهش‌های ریاضی, 2018
Introduction In industrial designing and manufacturing, it is often required to generate a smooth function approximating a given set of data which preserves certain shape properties of the data such as positivity, monotonicity, or convexity, that is, a ...
,
doaj  

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

Shape Preserving Properties of Some Positive Linear Operators on Unbounded Intervals

open access: yesJournal of Approximation Theory, 1998
The author studies certain positive averaging operators on spaces of continuous functions that preserve monotonicity, convexity, or Hölder continuity. This is motivated by applications to regularity of semigroups generated by certain elliptic second-order differential operators.
openaire   +3 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

On Baskakov operators preserving the exponential function

open access: yesJournal of Numerical Analysis and Approximation Theory, 2017
In this paper, we are concerned about the King-type Baskakov operators defined by means of the preserving functions \(e_{0}\) and \(e^{2ax},\ a>0\) fixed.
Ovgu Gurel Yilmaz, Vijay Gupta, Ali Aral
doaj   +2 more sources

Approximation and geometric properties of some complex Bernstein-Stancu polynomials in compact disks

open access: yesJournal of Numerical Analysis and Approximation Theory, 2007
In this paper, the order of simultaneous approximation, convergence results of the iterates and shape preserving properties, for complex Bernstein-Stancu polynomials (depending on one parameter) attached to analytic functions on compact disks are ...
Sorin G. Gal
doaj   +2 more sources

Solvent-Free Patterning of Colloidal Quantum Dot Films Utilizing Shape Memory Polymers

open access: yesMicromachines, 2017
Colloidal quantum dots (QDs) with properties that can be tuned by size, shape, and composition are promising for the next generation of photonic and electronic devices.
Hohyun Keum   +5 more
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

Home - About - Disclaimer - Privacy