[HTML][HTML] Accurate solution of the Thomas–Fermi equation using the fractional order of rational Chebyshev functions

K Parand, M Delkhosh - Journal of Computational and Applied …, 2017 - Elsevier
In this paper, the nonlinear singular Thomas–Fermi differential equation for neutral atoms is
solved using the fractional order of rational Chebyshev orthogonal functions (FRCs) of the …

Efficient image denoising technique using the meshless method: Investigation of operator splitting RBF collocation method for two anisotropic diffusion-based PDEs

Y Lotfi, K Parand - Computers & Mathematics with Applications, 2022 - Elsevier
Images taken and stored digitally are often degraded by noise, so that the perceived image
quality is significantly decreased in the presence of noise and human gaze behavior is …

The rational Chebyshev of second kind collocation method for solving a class of astrophysics problems

K Parand, S Khaleqi - The European Physical Journal Plus, 2016 - Springer
The Lane-Emden equation has been used to model several phenomena in theoretical
physics, mathematical physics and astrophysics such as the theory of stellar structure. This …

An innovative combination of deep Q-networks and context-free grammars for symbolic solutions to differential equations

HD Mazraeh, K Parand - Engineering Applications of Artificial Intelligence, 2025 - Elsevier
In this research paper, we propose a novel approach that combines deep Q-networks with
context-free grammars to solve differential equations symbolically. Our method utilizes the …

Solving Ordinary Differential Equations by LS-SVM

M Razzaghi, S Shekarpaz, A Rajabi - Learning with Fractional Orthogonal …, 2023 - Springer
In this chapter, we propose a machine learning method for solving a class of linear and
nonlinear ordinary differential equations (ODEs) which is based on the least squares …

New numerical solutions for solving Kidder equation by using the rational Jacobi functions

K Parand, P Mazaheri, M Delkhosh, A Ghaderi - SeMA Journal, 2017 - Springer
In this paper, a new method based on rational Jacobi functions (RJ) is proposed that utilizes
quasilinearization method to solve non-linear singular Kidder equation on unbounded …

A local meshless method for Cauchy problem of elliptic PDEs in annulus domains

A Shirzadi, F Takhtabnoos - Inverse problems in science and …, 2016 - Taylor & Francis
This paper is concerned with the development of a meshless local approach based on the
finite collocation method for solving Cauchy problems of 2-D elliptic PDEs in annulus …

Generalized Lagrangian Jacobi Gauss collocation method for solving unsteady isothermal gas through a micro-nano porous medium

K Parand, S Latifi, M Delkhosh, MM Moayeri - The European Physical …, 2018 - Springer
In the present paper, a new method based on the Generalized Lagrangian Jacobi Gauss
(GLJG) collocation method is proposed. The nonlinear Kidder equation, which explains …

The novel learning solutions to nonlinear differential models on a semi-infinite domain

Z Hajimohammadi, S Shekarpaz, K Parand - Engineering with Computers, 2023 - Springer
The aim of this paper is to introduce a new numerical approach named least-squares
support vector machines based on generalized Laguerre functions collocation …

Exponential function method for solving nonlinear ordinary differential equations with constant coefficients on a semi-infinite domain

E Chadwick, A Hatam, S Kazem - Proceedings-Mathematical Sciences, 2016 - Springer
A new approach, named the exponential function method (EFM) is used to obtain solutions
to nonlinear ordinary differential equations with constant coefficients in a semi-infinite …