Results 21 to 30 of about 11,999,664 (286)

About trigonometric-polynomial bounds of sinc function

open access: yesMathematical Sciences and Applications E-Notes, 2020
In this article, we establish sharp trigonometric-polynomial bounds for unnormalized sinc function.
R. Dhaigude   +2 more
semanticscholar   +4 more sources

Numerical solution of system of second-order integro-differential equations using nonclassical sinc collocation method

open access: yesBoundary Value Problems, 2023
In this paper, a nonclassical sinc collocation method is constructed for the numerical solution of systems of second-order integro-differential equations of the Volterra and Fredholm types.
Mohammad Ghasemi   +2 more
doaj   +2 more sources

Numerical solution of singular boundary value problems using Green’s function and Sinc-Collocation method

open access: yesJournal of King Saud University - Science, 2020
This study is the construction of the Green’s function and Sinc function for a class of nonhomogeneous singular boundary value problems (SBVPs). The equivalent Volterra-Fredholm integral equations can be derived from SBVPs by applying Green’s function ...
Jalil Rashidinia
exaly   +2 more sources

High-Order Sinc-Correlated Model Vortex Beams

open access: yesPhotonics, 2023
We propose a new partially coherent vortex source model in which the spatial correlation function is a sinc function on the difference from the q-th power of the coordinates of two points of the source field.
Jixian Wang   +4 more
doaj   +2 more sources

Analysis of Generalized Nonlinear Quadrature for Novel Fractional-Order Chaotic Systems Using Sinc Shape Function

open access: yesMathematics, 2023
This paper introduces the generalized fractional differential quadrature method, which is based on the generalized Caputo type and is used for the first time to solve nonlinear fractional differential equations.
Abdelfattah Mustafa   +2 more
doaj   +2 more sources

Sinc-function based Network

open access: yes, 1998
The purpose of this paper is to describe a neural network (SNN), that is based on Shannons ideas of reconstruction of a real continuous function from its samples. The basic function, used in this network, is the Sinc-function. Two learning algorithms are
Madsen, Per Printz
core   +5 more sources

Sinc-Galerkin method and a higher-order method for a 1D and 2D time-fractional diffusion equations

open access: yesBoundary Value Problems
In this article, a new numerical algorithm for solving a 1-dimensional (1D) and 2-dimensional (2D) time-fractional diffusion equation is proposed. The Sinc-Galerkin scheme is considered for spatial discretization, and a higher-order finite difference ...
Man Luo, Da Xu, Xianmin Pan
doaj   +2 more sources

A new fractional derivative involving the normalized sinc function without singular kernel

open access: yes, 2018
In this paper, a new fractional derivative involving the normalized sinc function without singular kernel is proposed. The Laplace transform is used to find the analytical solution of the anomalous heat-diffusion problems. The comparative results between
Baleanu, Dumitru   +3 more
core   +3 more sources

Numerical Solution of the Fredholme-Volterra Integral Equation by the Sinc Function

open access: yesAmerican Journal of Computational Mathematics, 2012
In this paper, we use the Sinc Function to solve the Fredholme-Volterra Integral Equations. By using collocation method we estimate a solution for Fredholme-Volterra Integral Equations.
A. S. Shamloo, Sanam Shahkar, A. Madadi
exaly   +2 more sources

Series expansions for powers of sinc function and closed-form expressions for specific partial bell polynomials [PDF]

open access: yesApplicable Analysis and Discrete Mathematics, 2022
In the paper, with the aid of the Fa? di Bruno formula, in terms of the central factorial numbers and the Stirling numbers of the second kinds, the authors derive several series expansions for any positive integer powers of the sinc and sinhc ...
Feng Qi (祁锋), Peter Taylor
semanticscholar   +1 more source

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