Search Results - "Razzaghi, M"
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An approximate method for solving fractional optimal control problems by hybrid functions
Published in Journal of vibration and control (01-05-2018)“…In this paper, a new numerical method for solving fractional optimal control problems by using hybrid functions is presented. The Riemann–Liouville fractional…”
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2
Orthonormal discrete Legendre polynomials for stochastic distributed‐order time‐fractional fourth‐order delay sub‐diffusion equation
Published in Mathematical methods in the applied sciences (01-12-2024)“…In this study, the stochastic distributed‐order time‐fractional version of the fourth‐order delay sub‐diffusion equation is defined by employing the Caputo…”
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3
Extended Chebyshev cardinal wavelets for nonlinear fractional delay optimal control problems
Published in International journal of systems science (04-04-2022)“…In this study, a new family of cardinal wavelets called the extended Chebyshev cardinal wavelets is introduced to investigate problems on arbitrary finite…”
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4
A new class of orthonormal basis functions: application for fractional optimal control problems
Published in International journal of systems science (25-01-2022)“…This study aims to generate a novel set of basis functions called the orthonormal piecewise Chelyshkov functions to solve a certain category of optimal control…”
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5
A numerical solution for fractional optimal control problems via Bernoulli polynomials
Published in Journal of vibration and control (01-10-2016)“…This paper presents a new numerical method for solving fractional optimal control problems (FOCPs). The fractional derivative in the dynamic system is…”
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6
Antifungal activity and mechanism of action of dichloromethane extract fraction A from Streptomyces libani against Aspergillus fumigatus
Published in Journal of applied microbiology (01-09-2021)“…Aims This study aimed to investigate the mechanism of antifungal action of Streptomyces libani dichloromethane extract fraction A (DCEFA) against Aspergillus…”
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7
Application of the extended Chebyshev cardinal wavelets in solving fractional optimal control problems with ABC fractional derivative
Published in International journal of systems science (10-09-2022)“…In this study, two categories of fractional optimal control problems are investigated. One category is optimal control problems, which includes a fractional…”
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8
Generalized Twin Support Vector Machines
Published in Neural processing letters (01-04-2021)“…In this paper, we propose two efficient approaches of twin support vector machines (TWSVM). The first approach is to reformulate the TWSVM formulation by…”
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9
A highly accurate method for multi-term time fractional diffusion equation in two dimensions with ψ-Caputo fractional derivative
Published in Results in applied mathematics (01-08-2024)“…In this study, the ψ-Caputo fractional derivative (as a generalization of the classical Caputo derivative where the fractional derivative is defined with…”
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10
A hybrid spectral approach based on 2D cardinal and classical second kind Chebyshev polynomials for time fractional 3D Sobolev equation
Published in Mathematical methods in the applied sciences (01-12-2023)“…In this work, the Caputo fractional derivative defines the time fractional 3D Sobolev equation. The 2D shifted second kind Chebyshev cardinal polynomials…”
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11
Numerical solution of different kinds of fractional‐order optimal control problems using generalized Lucas wavelets and the least squares method
Published in Optimal control applications & methods (01-11-2024)“…Generalized Lucas wavelets (GLWs) have two more parameters (α$$ \alpha $$ and β$$ \beta $$), comparing with some existing classical wavelet functions. In this…”
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12
Least squares support vector regression for solving Volterra integral equations
Published in Engineering with computers (01-04-2022)“…In this paper, a numerical approach is proposed based on least squares support vector regression for solving Volterra integral equations of the first and…”
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13
Jacobi polynomials method for a coupled system of Hadamard fractional Klein–Gordon–Schrödinger equations
Published in Alexandria engineering journal (01-11-2024)“…In this work, the Caputo-type Hadamard fractional derivative is utilized to introduce a coupled system of time fractional Klein–Gordon-Schrödinger equations…”
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14
Numerical solution of nonlinear fractional integro-differential equations by hybrid functions
Published in Engineering analysis with boundary elements (01-07-2015)“…In this paper, a new numerical method for solving nonlinear fractional integro-differential equations is presented. The method is based upon hybrid functions…”
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15
Fractional Chebyshev cardinal wavelets: application for fractional quadratic integro-differential equations
Published in International journal of computer mathematics (04-03-2023)“…This paper introduces a new set of the basis functions called the fractional Chebyshev cardinal wavelets and details their properties. These wavelets have a…”
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16
Orthonormal Bernoulli polynomials for space–time fractal-fractional modified Benjamin–Bona–Mahony type equations
Published in Engineering with computers (01-08-2022)“…In this study, a new fractal-fractional (FF) derivative is defined by coupling the local conformable derivative and non-local Caputo fractional derivative…”
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17
Hybrid functions approach for nonlinear constrained optimal control problems
Published in Communications in nonlinear science & numerical simulation (01-04-2012)“…► Hybrid functions consisting of the combination of block-pulse with polynomial series have been shown to be a powerful tool. ► The hybrid of block-pulse and…”
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18
A discrete spectral method for time fractional fourth-order 2D diffusion-wave equation involving ψ-Caputo fractional derivative
Published in Results in applied mathematics (01-08-2024)“…In this work, the ψ-Caputo fractional derivative, as a generalization of the classical Caputo fractional derivative in which the fractional derivative of a…”
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19
Orthonormal Chelyshkov polynomials for multi-term time fractional two-dimensional telegraph type equations
Published in Results in physics (01-12-2023)“…In this study, multi-term time fractional 2D telegraph type equations, as a new category of fractional differential equations, are introduced. The orthonormal…”
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20
Optimal Control of Delay Systems by Using a Hybrid Functions Approximation
Published in Journal of optimization theory and applications (01-05-2012)“…In this paper, a new numerical method for solving the optimal control of linear time-varying delay systems with quadratic performance index is presented. The…”
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