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Issue Info: 
  • Year: 

    2021
  • Volume: 

    7
  • Issue: 

    31
  • Pages: 

    205-215
Measures: 
  • Citations: 

    0
  • Views: 

    168
  • Downloads: 

    0
Abstract: 

In this paper, we solve the Cooper-Schmidt equation in a way that is consistent with Jacuzzi and Airfoil foundations. This PDE equation is one of the most important equations in physics and chemistry. This nonlinear equation in mechanical engineering appears as a wave phenomenon, and in plasma physics discusses systems that are composed of positive and negative charged particles that can move freely. Comparison of the level of hot electron production and its surface causes the harmonic emission of some source signals and the heat electrons in the plasma are radiated spherically [1]. The Cooper-Schmidt equation plays an important role in nonlinear wave scattering. Individual waves are propagated in the nonlinear scattering of media. These waves maintain a stable shape. Due to the dynamic equilibrium and nonlinearity of this equation, an approximate solution has been proposed in many papers [12, 13]. In this paper, by applying numerical methods to the desired equation, nonlinear devices can be obtained that can be obtained by the method. Solved nonlinear systems, such as Newton's iterative method. The existence, uniqueness of the answer, and convergence of methods are examined.

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Issue Info: 
  • Year: 

    2013
  • Volume: 

    44
Measures: 
  • Views: 

    177
  • Downloads: 

    102
Abstract: 

IN THIS ARTICLE, WE APPLY JACOBI POLYNOMIAL TO SOLVE RICCATI DIFFERENTIAL EQUATION OF FRACTIONAL ORDER. A GENERAL FORMULA FOR THE JACOBI OPERATIONAL MATRIX OF FRACTIONAL INTEGRAL OPERATOR IS CONSTRUCT. THE NUMERICAL RESULTS FOR THE EXAMPLES DEMONSTRATE THE EFFICIENCY OF THE PRESENT METHOD.

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Issue Info: 
  • Year: 

    2021
  • Volume: 

    6
  • Issue: 

    4
  • Pages: 

    819-830
Measures: 
  • Citations: 

    0
  • Views: 

    51
  • Downloads: 

    22
Abstract: 

In this paper, we present an efficient and accurate method for calculating the Black-Scholes differential equations and solve the Black-Scholes equations using Jacoby and Airfoil orthogonal bases, with the collocation method. The BlackScholes equation is a partial differential equation, which describes the price of choice in terms of time and the collocation method is a method of deter-mining coefficients. Then we show the computational results and examine the performance of the method for the two options, the price of basic assets and its issues. These results show that the Jacoby method is more efficient in solving the Black Scholes equation, and the method error is less and the convergence rate is higher. In this paper, by applying numerical methods to the desired equation, nonlinear devices can be solved by nonlinear solution methods, such as Newton's iterative method. The existence, uniqueness of the solution, and convergence of the methods are examined, and we will show in an example that by repeating then |𝑢, 𝑛, +1−, 𝑢, 𝑛, | |𝑢, 𝑛, | < ε, can be reached and this indicates the accuracy of the response to In this paper, we present an efficient and accurate method for calculating the Black-Scholes differential equations and solve the Black-Scholes equations using Jacoby and Airfoil orthogonal bases, with the collocation method. The BlackScholes equation is a partial differential equation, which describes the price of choice in terms of time and the collocation method is a method of deter-mining coefficients. Then we show the computational results and examine the performance of the method for the two options, the price of basic assets and its issues. These results show that the Jacoby method is more efficient in solving the Black Scholes equation, and the method error is less and the convergence rate is higher. In this paper, by applying numerical methods to the desired equation, nonlinear devices can be solved by nonlinear solution methods, such as Newton's iterative method.

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Issue Info: 
  • Year: 

    2023
  • Volume: 

    44
  • Issue: 

    3
  • Pages: 

    9-16
Measures: 
  • Citations: 

    0
  • Views: 

    37
  • Downloads: 

    10
Abstract: 

In this paper, the polarized structure functions of  and nuclei have been computed in the second order of the Feynman diagram with and without considering SU(3) symmetry in spin dependence for the partonic distribution of nucleons. For this purpose and at first, the polarized structure functions of the nucleons in nuclei are obtained, using JACOBI POLYNOMIALs. In this regard, two different and prevalent phenomenological models are used to obtain the required polarized partition distributions. Finally, in deriving the nuclear structure functions, effective nuclear corrections are also imposed. The results show that most of the plots for polarized nuclear longitudinal structure functions, resulted from the used phenomenological model whereas symmetry breaking is taken into account, are more compatible with the available experimental data, there is no considerable difference between the data compatibility with curves of both models for polarized nuclear transverse structure functions.

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Issue Info: 
  • Year: 

    2015
  • Volume: 

    46
Measures: 
  • Views: 

    182
  • Downloads: 

    118
Abstract: 

IN THIS PAPER, FOR GIVEN N EIGENVALUES L1, L2, ..., LN, WE CONSTRUCT A JACOBI MATRIX JÎ RN×N. ALSO, THE ALGORITHM AND NUMERICAL EXAMPLES OF THIS METHOD WILL BE EXPRESSED.

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Issue Info: 
  • Year: 

    2016
  • Volume: 

    7
  • Issue: 

    1
  • Pages: 

    93-101
Measures: 
  • Citations: 

    0
  • Views: 

    242
  • Downloads: 

    103
Abstract: 

Our aim in this paper is to prove an analog of Younis's Theorem on the image under the JACOBI transform of a class functions satisfying a generalized Dini-Lipschitz condition in the space Lp ( ; )(R+), (1 < p  2). It is a version of Titchmarsh's theorem on the description of the image under the Fourier transform of a class of functions satisfying the Dini-Lipschitz condition in Lp.

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Author(s): 

LORKOJORI Z. | MIKAEILVAND N.

Issue Info: 
  • Year: 

    2010
  • Volume: 

    2
  • Issue: 

    3
  • Pages: 

    181-187
Measures: 
  • Citations: 

    1
  • Views: 

    353
  • Downloads: 

    105
Abstract: 

In 2009 B. Zheng et al. proposed two modified Gauss-Seidel (MGS) methods for linear system with M-matrices. In this paper, we use the preconditioners introduced by B. Zheng et al. For modified JACOBI method. The comparison theorems and numerical examples show that the proposed methods are superior to the classical JACOBI method.

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Writer: 

MIRZAEI H.

Issue Info: 
  • Year: 

    2016
  • Volume: 

    47
Measures: 
  • Views: 

    169
  • Downloads: 

    94
Abstract: 

IN THIS PAPER, WE CONSIDER CONSTRUCTING OF PSEUDO-SYMMETRIC JACOBI MATRICES. WE DENOTE THE MATRIX OBTAINED BY KNOKING THE (M+1) TH ROW AND COLUMN OF THE MATRIX J BY JM+1. USING TWO SPECTRA, THE SPECTRUM OF PSEUDO- SYMMETRIC JACOBI MATRIX J AND SPECTRUM OF MATRIX JM+1, WE PROPOSE AN ALGORITHM FOR CONSTRUCTING THE ORIGINAL MATRIX J. WE GIVE CONDITIONS ON GIVEN SPECTRAL DATA FOR EXISTENCE AND UNIQUELY RECONSTRUCTION.

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Issue Info: 
  • Year: 

    2018
  • Volume: 

    13
  • Issue: 

    2
  • Pages: 

    143-161
Measures: 
  • Citations: 

    0
  • Views: 

    368
  • Downloads: 

    223
Abstract: 

The aim of this paper is to introduce two new extensions of the JACOBI and Laguerre POLYNOMIALs as the eigenfunctions of two non-classical Sturm-Liouville problems. We prove some important properties of these operators such as: These sets of functions are orthogonal with respect to a positive definite inner product defined over the compact intervals [-1; 1] and [0,¥), respectively and also these sequences form two new orthogonal bases for the corresponding Hilbert spaces. Finally, the spectral and Rayleigh-Ritz methods are carry out using these basis functions to solve some examples. Our numerical results are compared with other existing results to confirm the efficiency and accuracy of our method.

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Author(s): 

DERRIENNIC M.M.

Issue Info: 
  • Year: 

    2005
  • Volume: 

    76
  • Issue: 

    -
  • Pages: 

    269-290
Measures: 
  • Citations: 

    1
  • Views: 

    157
  • Downloads: 

    0
Keywords: 
Abstract: 

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