Results 101 to 110 of about 22,208 (203)

Chebyshev Approximations to the Gamma Function [PDF]

open access: yesMathematics of Computation, 1961
Werner, Helmut, Collinge, Robert
openaire   +1 more source

Numerical Studies for Fractional Functional Differential Equations with Delay Based on BDF-Type Shifted Chebyshev Approximations

open access: yesAbstract and Applied Analysis, 2015
Fractional functional differential equations with delay (FDDEs) have recently played a significant role in modeling of many real areas of sciences such as physics, engineering, biology, medicine, and economics.
V. G. Pimenov, A. S. Hendy
doaj   +1 more source

A Single Layer Functional Link Artificial Neural Network based on Chebyshev Polynomials for Neural Evaluations of Nonlinear Nth Order Fuzzy Differential Equations

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2018
Bearing in mind the considerable importance of fuzzy differential equations (FDEs) in different fields of science and engineering, in this paper, nonlinear nth order FDEs are approximated, heuristically.
Ara Asmat   +2 more
doaj   +1 more source

Noncommutative Chebyshev inequality involving the Hadamard product

open access: yes, 2018
We present several operator extensions of the Chebyshev inequality for Hilbert space operators. The main version deals with the synchronous Hadamard property for Hilbert space operators.
Bakherad, Mojtaba   +1 more
core  

Numerical Solution of a Class of Functional-Differential Equations Using Jacobi Pseudospectral Method

open access: yesAbstract and Applied Analysis, 2013
The shifted Jacobi-Gauss-Lobatto pseudospectral (SJGLP) method is applied to neutral functional-differential equations (NFDEs) with proportional delays.
A. H. Bhrawy, M. A. Alghamdi, D. Baleanu
doaj   +1 more source

Asymptotic formulae of generalized Chebyshev functions

open access: yes, 1996
Let \(G_2\) denote the set of squares of integers and let \(Q_r\) (\(r\)-integer) be the set of \(r\)-free numbers \((Q_1= \{1\})\). Moreover, for a fixed \(r,k,m\) and \(N\in G_2\cap Q_r\), \(\omega(r)\leq r-1\), let \(C_{r,k}\) denote the set of positive integers \(n\) such that \(n=N\) or \(n= pmN\) with \((pm,N)=1\).
Calderón, Catalina   +1 more
openaire   +2 more sources

Quantum Chebyshev probabilistic models for fragmentation functions

open access: yesCommunications Physics
Quantum generative modeling is emerging as a powerful tool for advancing data analysis in high-energy physics, where complex multivariate distributions are common. However, efficiently learning and sampling these distributions remains challenging. We propose a quantum protocol for a bivariate probabilistic model based on shifted Chebyshev polynomials ...
Jorge J. Martínez de Lejarza   +4 more
openaire   +2 more sources

A Chebyshev Set and its Distance Function

open access: yesJournal of Approximation Theory, 2002
Let \(K\) be a Chebyshev subset of a smooth Banach space \(B\). An old open question in Banach space geometry asks if \(K\) must be convex. The answer is not known even if \(B\) is a Hilbert space. There are many beautiful partial results. For example, compact Chebyshev subsets of a smooth Banach space are convex.
openaire   +1 more source

SOLUTION OF SINGULAR INTEGRAL EQUATION FOR ELASTICITY THEORY WITH THE HELP OF ASYMPTOTIC POLYNOMIAL FUNCTION

open access: yesНаука и техника, 2014
The paper offers a new method for approximate solution of one type of singular integral equations for elasticity theory which have been studied by other authors.
V. P. Gribkova, S. M. Kozlov
doaj  

A NORM INEQUALITY FOR CHEBYSHEV CENTRES [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 1995
In this paper, we study the Chebyshev centres of bounded subsets of normed spaces and obtain a norm inequality for relative centres. In particular, we prove that if T is a remotal subset of an inner product space H, and F is a star-shaped set at a ...
doaj  

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