Results 31 to 40 of about 16,217 (190)

Two Modifications of the Homotopy Perturbation Method for ‎Nonlinear Oscillators [PDF]

Journal of Applied and Computational Mechanics, 2020
Nonlinear vibration arises in engineering and physics, and the periodic motion of these nonlinear oscillatory systems have rich dynamics. An estimation of amplitude-frequency relationship of a nonlinear oscillator is much needed, therefore, well-known ...
Naveed Anjum, Ji-Huan He
doaj   +1 more source

Li–He’s modified homotopy perturbation method coupled with the energy method for the dropping shock response of a tangent nonlinear packaging system

Journal of Low Frequency Noise, Vibration and Active Control, 2021
This paper couples Li–He’s homotopy perturbation method with the energy method to obtain an approximate solution of a tangent nonlinear packaging system.
Qiu-Ping Ji, Jun Wang, Li-Xin Lu, Chang-Feng Ge   +3 more
doaj   +1 more source

On the convergence of Homotopy perturbation method

Journal of the Egyptian Mathematical Society, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ayati, Zainab, Biazar, Jafar
openaire   +1 more source

Two binary stars gravitational waves: homotopy perturbation method [PDF]

Indian Journal of Physics, 2012
The manuscript considers the important problem of solve equation wave around a black hole. We have solved that by using Homotopy perturbation methods. Homotopy perturbation is one of the newest methods for numerical analysis of deferential equations. Our conclusions have far reaching consequences for comparison of theoritical physics and experimental ...
Zare, M., Jalili, O., Delshadmanesh, M.
openaire   +2 more sources

An Accelerated Homotopy Perturbation Method for Solving Nonlinear Two-Dimensional Volterra-Fredholm Integrodifferential Equations

Advances in Mathematical Physics, 2017
We propose and apply coupling of the variational iteration method (VIM) and homotopy perturbation method (HPM) to solve nonlinear mixed Volterra-Fredholm integrodifferential equations (VFIDE).
F. A. Hendi, M. M. Al-Qarni
doaj   +1 more source

Calculating Luminosity Distance versus Redshift in FLRW Cosmology via Homotopy Perturbation Method

, 2016
We propose an efficient analytical method for estimating the luminosity distance in a homogenous Friedmann-Lema\^itre-Robertson-Walker (FLRW) model of the Universe.
Shchigolev, V. K.
core   +1 more source

Homotopy Perturbation Method for Pneumonia–HIV Co-Infection

Foundations, 2022
It is well known that HIV (human immunodeficiency virus) weakens the immune system of individuals, resulting in risk of other infections, such as pneumonia. The most frequent viral pneumonia seen in individuals infected with HIV is cytomegalovirus (CMV).
Nita H. Shah, Nisha Sheoran
openaire   +2 more sources

A computational approach for fractional convection-diffusion equation via integral transforms

Ain Shams Engineering Journal, 2018
In this paper, two efficient analytic techniques namely the homotopy analysis transform method (HATM) and homotopy perturbation Sumudu transform method (HPSTM) are implemented to give a series solution of fractional convection-diffusion equation which ...
Jagdev Singh, Ram Swroop, Devendra Kumar
doaj   +1 more source

Approximate solution to the fractional Lane-Emden type equations

, 2017
In this paper, approximate solutions for a class of fractional Lane - Emden type equations based on the series expansion method are presented. Various examples are introduced and discussed.
Abdel-Salam, Emad A-B., Nouh, M. I.
core   +1 more source

An improved homotopy perturbation method for solving local fractional nonlinear oscillators

Journal of Low Frequency Noise, Vibration and Active Control, 2019
Local fractional nonlinear oscillators are studied by a modification of the homotopy perturbation method coupled with the variational iteration method.
Yong-Ju Yang, Shun-Qin Wang
doaj   +1 more source