Results 71 to 80 of about 5,260,799 (222)

Bivariate Chebyshev polynomials of the fifth kind for variable-order time-fractional partial integro-differential equations with weakly singular kernel

open access: yesAdvances in Difference Equations, 2021
The shifted Chebyshev polynomials of the fifth kind (SCPFK) and the collocation method are employed to achieve approximate solutions of a category of the functional equations, namely variable-order time-fractional weakly singular partial integro ...
Khadijeh Sadri   +4 more
doaj   +1 more source

q-Chebyshev polynomials [PDF]

open access: yes, 2012
In this overview paper a direct approach to q-Chebyshev polynomials and their elementary properties is given. Special emphasis is placed on analogies with the classical case.
Johann Cigler   +2 more
core  

Kinematic model-independent reconstruction of Palatini $f(R)$ cosmology

open access: yes, 2018
A kinematic treatment to trace out the form of $f(R)$ cosmology, within the Palatini formalism, is discussed by only postulating the universe homogeneity and isotropy.
Capozziello, Salvatore   +2 more
core   +1 more source

Chebyshev–Halley methods for analytic functions

open access: yesJournal of Computational and Applied Mathematics, 2008
The Chebyshev-Halley iteration method \[ z^{n+1}=z^n - u_f(z^n)\left[1+\frac{L_f(z^n)}{2(1-\alpha L_f(z^n))}\right] \] is discussed for approximating zeros of an analytic function \(f(z)\). Here \(u_f(z)=\frac{f(z)}{f'(z)}\) and \(L_f(z)=\frac{f(z)f''(z)}{(f'(z))^2}\). \(\alpha\) is a real constant.
openaire   +1 more source

Bending Analysis of Thickness‐ and Shear‐Deformable Materially Imperfect Composite Shells With von Kármán‐Type Geometric Nonlinearities

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Geometrically nonlinear static analysis of materially imperfect composite doubly curved shells is investigated via the generalised differential quadrature method. The effects of both shear and thickness deformation are considered through a thickness‐ and shear‐deformable third‐order theory formulated in curvilinear coordinates, while the ...
Behrouz Karami   +3 more
wiley   +1 more source

Bivariate Chebyshev Type Inequalities for Alpha Diamond Integrals via Time Scale Calculus

open access: yesJournal of Mathematics
In this article, some generalizations of inequalities involving Chebyshev functional depending upon two parameters, for the class of twice differentiable functions on time scales, are studied.
Khaled Aldwoah   +5 more
doaj   +1 more source

Linear Chebyshev Approximation of Complex-Valued Functions [PDF]

open access: yesMathematics of Computation, 1978
This paper is concerned with Chebyshev approximation by linear functions to complex-valued data. The problem is nonlinear, and we present a convergent algorithm for its solution. We also pose a related linear problem which is simple to solve, and which produces approximations which are near-best in the Chebyshev sense within a factor of
Barrodale, I.   +2 more
openaire   +2 more sources

Elastoplasticity Informed Kolmogorov–Arnold Networks Using Chebyshev Polynomials

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Multilayer perceptron (MLP) networks are predominantly used to develop data‐driven constitutive models for granular materials. They offer a compelling alternative to traditional physics‐based constitutive models in predicting non‐linear responses of these materials, for example, elastoplasticity, under various loading conditions. To attain the
Farinaz Mostajeran, Salah A. Faroughi
wiley   +1 more source

On Chebyshev Functional and Ostrowski-Grus Type Inequalities for Two Coordinates

open access: yesInternational Journal of Analysis and Applications, 2016
In this paper, we construct Chebyshev functional and Gruss inequality on two coordinates. Also we establish Ostrowski-Gruss type inequality on two coordinates. Related mean value theorems of Lagrange and Cauchy type are also given.
Atiq Ur Rehman, Ghulam Farid
doaj   +2 more sources

Unsupervised Functional Link Artificial Neural Networks for Cluster Analysis

open access: yesIEEE Access, 2020
In this paper, we propose a novel method of cluster analysis called unsupervised functional link artificial neural networks (UFLANNs), which inherit the best characteristics of functional link artificial neural networks and self-organizing feature maps ...
Bhabani Shankar Prasad Mishra   +3 more
doaj   +1 more source

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