Results 31 to 40 of about 10,062 (264)

Some New Results of Mitrinović–Cusa’s and Related Inequalities Based on the Interpolation and Approximation Method

open access: yesJournal of Mathematics, 2021
In this paper, new refinements and improvements of Mitrinović–Cusa’s and related inequalities are presented. First, we give new polynomial bounds for sinc(x) and cos(x) functions using the interpolation and approximation method.
Lina Zhang, Xuesi Ma
doaj   +1 more source

On multidimensional sinc-Gauss sampling formulas for analytic functions. ETNA - Electronic Transactions on Numerical Analysis

open access: yes, 2022
Using complex analysis, we present new error estimates for multidimensional sinc-Gauss sampling formulas for multivariate analytic functions and their partial derivatives, which are valid for wide classes of functions.
Al-Haddad, Felwah H.   +1 more
core   +1 more source

Polynomial-Exponential Bounds for Some Trigonometric and Hyperbolic Functions

open access: yesAxioms, 2021
Recent advances in mathematical inequalities suggest that bounds of polynomial-exponential-type are appropriate for evaluating key trigonometric functions.
Yogesh J. Bagul   +3 more
doaj   +1 more source

Electromagnetic Scattering From Arbitrary Flat Plates: Analysis of the Problem by Using Method of Moments With Different Sinc Type Basis Functions [PDF]

open access: yes, 2011
In this paper, three dimensional electromagnetic scattering problem is solved by using pulse-sinc type basis functions in the Method of Moments (MoM) procedure.
Kuştepeli, Alp   +2 more
core   +2 more sources

Acoustic Green's Functions using the 2D Sinc-Galerkin Method [PDF]

open access: yes, 2014
In many acoustic problems, the radiated sound field is dominated by scattering effects. Green's functions represent the scattering behaviour of a particular geometry and are required to propagate acoustic disturbances through complex geometries using ...
Dupère, Iain D. J.   +1 more
core   +1 more source

Applying Haar-Sinc Spectral Method for Solving time-fractional Burger Equation [PDF]

open access: yesMathematics and Computational Sciences
Haar-Sinc spectral method is used for the numerical approximation of time fractional Burgers’equations with variable and constant coefficients. The main idea in this method is using a linear discretization of time and space by combination of Haar and ...
Ali Pirkhedri
doaj   +1 more source

Refinements of some classical inequalities involving sinc and hyperbolic sinc functions

open access: yes, 2022
Several bounds of trigonometric-exponential and hyperbolic-exponential type for sinc and hyperbolic sinc functions are presented. In an attempt to generalize the results, some known inequalities are sharpened and extended.
Thool, Sumedh B.   +3 more
core  

A collocation method for solving boundary value problems of fractional order

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
In this paper, the sinc collocation method is used to obtain the solution of the second-order fractional boundary value problems based on the conformable fractional derivative. For this purpose a theorem is proved to represent the terms having fractional
Sertan Alkan, Aydin Seçer
doaj   +1 more source

Fibonacci wavelet method for solving time-fractional telegraph equations with Dirichlet boundary conditions

open access: yesResults in Physics, 2021
In this article, a new and efficient operational matrix method based on the amalgamation of Fibonacci wavelets and block pulse functions is proposed for the solutions of time-fractional telegraph equations with Dirichlet boundary conditions.
Firdous A. Shah   +4 more
doaj   +1 more source

Some Aspects in n-dimensional almost Periodic functions iii

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2011
The properties of almost periodical functions and some new results have been published in [CA1], [CA2] and [CA3] In this paper we show some new definitions in order to analize some singularities.
Vernor Arguedas Troyo, Edwin Castro
doaj   +1 more source

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