Results 11 to 20 of about 631 (89)

Iterates of q-Bernstein operators on triangular domain with all curved sides

open access: yesDemonstratio Mathematica, 2022
In this article, Phillips-type Bernstein operators (ℬm,qtF)(t,s)({{\mathcal{ {\mathcal B} }}}_{m,q}^{t}F)\left(t,s) and (ℬn,qsF)(t,s)({{\mathcal{ {\mathcal B} }}}_{n,q}^{s}F)\left(t,s), their products, and Boolean sum based on q-integer have been studied
Iliyas Mohammad   +4 more
doaj   +1 more source

About a dubious proof of a correct result about closed Newton Cotes error formulas

open access: yesOpen Mathematics, 2023
In this study, we comment about a wrong proof, at least incomplete, of the closed Newton Cotes error formulas for integration in a closed interval [a,b].\left[a,b].
López David J.   +4 more
doaj   +1 more source

Facial expression video generation based-on spatio-temporal convolutional GAN: FEV-GAN

open access: yesIntelligent Systems with Applications, 2022
Facial expression generation has always been an intriguing task for scientists and researchers all over the globe. In this context, we present our novel approach for generating videos of the six basic facial expressions.
Hamza Bouzid, Lahoucine Ballihi
doaj   +1 more source

Empirical mode decomposition with shape-preserving spline interpolation

open access: yesResults in Applied Mathematics, 2020
Empirical mode decomposition (EMD) is a popular, novel, user-friendly algorithm to decompose a given signal into its constituting components, utilizing spline interpolation.
Maria D. van der Walt
doaj   +1 more source

Strict positive definiteness on spheres via disk polynomials

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 31, Issue 12, Page 715-724, 2002., 2002
We characterize complex strictly positive definite functions on spheres in two cases, the unit sphere of ℂq, q ≥ 3, and the unit sphere of the complex ℓ2. The results depend upon the Fourier‐like expansion of the functions in terms of disk polynomials and, among other things, they enlarge the classes of strictly positive definite functions on real ...
V. A. Menegatto, A. P. Peron
wiley   +1 more source

Integral representations for Padé‐type operators

open access: yesJournal of Applied Mathematics, Volume 2, Issue 2, Page 51-69, 2002., 2002
The main purpose of this paper is to consider an explicit form of the Padé‐type operators. To do so, we consider the representation of Padé‐type approximants to the Fourier series of the harmonic functions in the open disk and of the L p‐functions on the circle by means of integral formulas, and, then we define the corresponding Padé‐type operators. We
Nicholas J. Daras
wiley   +1 more source

A note on the rate of convergence for Chebyshev-Lobatto and Radau systems

open access: yesOpen Mathematics, 2016
This paper is devoted to Hermite interpolation with Chebyshev-Lobatto and Chebyshev-Radau nodal points. The aim of this piece of work is to establish the rate of convergence for some types of smooth functions.
Berriochoa Elías   +3 more
doaj   +1 more source

Stečkin inequalities for summability methods

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 20, Issue 1, Page 93-100, 1997., 1995
Stečkin proved an inequality on Fejér means of Fourier series He said, “Proving similar inequality for other summability method is an interesting problem.” We generalize Stečkin′s inequality and give various applications to summability methods.
Jia-Ding Cao
wiley   +1 more source

The growth, spread, and mutation of internet phenomena: A study of memes

open access: yesResults in Applied Mathematics, 2020
An internet memes is defined as “an image, video, piece of text, etc., typically humorous in nature, that is copied and spread rapidly by Internet users, often with slight variations” (Oxford Living Dictionary, 2018). Such units of information are spread
Adam Lonnberg   +2 more
doaj   +1 more source

The Paley‐Wiener‐Levinson theorem revisited

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 20, Issue 2, Page 229-234, 1997., 1995
In this paper a new proof of the Paley‐Wiener‐Levinson theorem is presented. This proof is based upon the isometry between the Paley‐Wiener space and that of the square‐integrable functions in [−π, π], on one hand, and a Titchmarsh′s theorem which allows recovering bandlimited, entire functions from their zeros, on the other hand.
A. G. García
wiley   +1 more source

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