نتایج جستجو برای: fractional order of rational chebyshev functions

تعداد نتایج: 21245600  

Journal: :Mathematical Problems in Engineering 2021

In this paper, we consider a class of fractional-order differential equations and investigate two aspects these equations. First, the existence unique solution, then, using new control functions, Gauss hypergeometric stability. We use Chebyshev Bielecki norms in order to prove by Picard method. Finally, give some examples illustrate our results.

2012
Kourosh Parand Zahra Delafkar Fatemeh Baharifard

The problem of natural convection about a cone embedded in a porous medium at local Rayleigh numbers based on the boundary layer approximation and the Darcy’s law have been studied before. Similarity solutions for a full cone with the prescribed wall temperature or surface heat flux boundary conditions which is the power function of distance from the vertex of the inverted cone give us a third-...

Journal: :international journal of mathematical modelling and computations 0
y. ordokhani department of applied mathematics, faculty of mathematical sciences, alzahra university, tehran, iran. n. rahimi department of applied mathematics, faculty of mathematical sciences, alzahra university, tehran, iran.

abstract. in this paper, we implement numerical solution of differential equations of frac- tional order based on hybrid functions consisting of block-pulse function and rationalized haar functions. for this purpose, the properties of hybrid of rationalized haar functions are presented. in addition, the operational matrix of the fractional integration is obtained and is utilized to convert compu...

Journal: :ISA transactions 2015
Anindya Pakhira Saptarshi Das Indranil Pan Shantanu Das

This paper uses the Continued Fraction Expansion (CFE) method for analog realization of fractional order differ-integrator and few special classes of fractional order (FO) controllers viz. Fractional Order Proportional-Integral-Derivative (FOPID) controller, FO[PD] controller and FO lead-lag compensator. Contemporary researchers have given several formulations for rational approximation of frac...

Journal: :international journal of industrial mathematics 0
m. mashoof‎ department of mathematics, lahijan branch, islamic azad university, lahijan, ‎iran.‎ a. h. refahi ‎sheikhani‎ department of mathematics, lahijan branch, islamic azad university, lahijan, ‎iran.‎

in recent years, there has been greater attempt to find numerical solutions of differential equations using wavelet's methods. the following method is based on vector forms of haar-wavelet functions. in this paper, we will introduce one dimensional haar-wavelet functions and the haar-wavelet operational matrices of the fractional order integration. also the haar-wavelet operational matrice...

2016
SOTIRIS K. NTOUYAS PRAVEEN AGARWAL JESSADA TARIBOON S. K. NTOUYAS P. AGARWAL J. TARIBOON

In this paper, we investigate some new Pólya-Szegö type integral inequalities involving the Riemann-Liouville fractional integral operator, and use them to prove some fractional integral inequalities of Chebyshev type, concerning the integral of the product of two functions and the product of two integrals. Certain special cases are also considered. Finally, examples for constructing the boundi...

Journal: :sahand communications in mathematical analysis 0
somayeh nemati department of mathematics, faculty of mathematical sciences, university of mazandaran, babolsar, iran.

in this paper, we consider the second-kind chebyshev polynomials (skcps) for the numerical solution of the fractional optimal control problems (focps). firstly, an introduction of the fractional calculus and properties of the shifted skcps are given and then operational matrix of fractional integration is introduced. next, these properties are used together with the legendre-gauss quadrature fo...

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