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This paper presents a new method for the solution of multiscale stochastic differential equations at the diffusive time scale. In contrast to averaging-based methods, e.g., the heterogeneous multiscale method (HMM) or the equation-free…

数值分析 · 数学 2016-09-19 A. Abdulle , G. A. Pavliotis , U. Vaes

Multilinear systems of equations arise in various applications, such as numerical partial differential equations, data mining, and tensor complementarity problems. In this paper, we propose a homotopy method for finding the unique positive…

数值分析 · 数学 2017-01-27 Lixing Han

The non-linear collision-induced breakage equation has significant applications in particulate processes. Two semi-analytical techniques, namely homotopy analysis method (HAM) and accelerated homotopy perturbation method (AHPM) are…

数值分析 · 数学 2024-03-14 Sanjiv Kumar Bariwal , Saddam Hussain , Rajesh Kumar

Solving partial differential equations (PDEs) using neural networks has become a central focus in scientific machine learning. Training neural networks for singularly perturbed problems is particularly challenging due to certain parameters…

机器学习 · 计算机科学 2025-05-30 Chuqi Chen , Yahong Yang , Yang Xiang , Wenrui Hao

We comment on the new trend in mathematical physics that consists of obtaining Taylor series for fabricated linear and nonlinear unphysical models by means of homotopy perturbation method (HPM), homotopy analysis method (HAM) and Adomian…

数学物理 · 物理学 2009-10-02 Francisco M. Fernandez

This study introduces the Homotopy Perturbation Sumudu Transform Method (HPSTM), a novel hybrid approach combining the Sumudu transform with homotopy perturbation to solve nonlinear fractional partial differential equations (FPDEs),…

数值分析 · 数学 2025-07-18 Maryam Jalili

In this paper, we suggest a new Heterogeneous Multiscale Method (HMM) for the (time-harmonic) Maxwell scattering problem with high contrast. The method is constructed for a setting as in Bouchitt\'e, Bourel and Felbacq (C.R. Math. Acad.…

数值分析 · 数学 2017-10-27 Barbara Verfürth

The manuscript addresses the problem of finding all solutions of power flow equations or other similar nonlinear system of algebraic equations. This problem arises naturally in a number of power systems contexts, most importantly in the…

混沌动力学 · 物理学 2014-08-13 Dhagash Mehta , Hung Nguyen , Konstantin Turitsyn

A nonlinear Helmholtz equation (NLH) with high wave number and Sommerfeld radiation condition is approximated by the perfectly matched layer (PML) technique and then discretized by the linear finite element method (FEM).…

数值分析 · 数学 2022-07-12 Run Jiang , Yonglin Li , Haijun Wu , Jun Zou

This paper deals the implementation of \emph{homotopy perturbation transform method} (HPTM) for numerical computation of initial valued autonomous system of time-fractional partial differential equations (TFPDEs) with proportional delay,…

数值分析 · 数学 2018-02-19 Brajesh Kumar Singh , Pramod Kumar

In the present work, we attempt to find a new class of solutions for the spherically symmetric perfect fluid sphere by employing the Homotopy Perturbation Method (HPM), a new tool via which the mass polynomial function facilitates to tackle…

广义相对论与量子宇宙学 · 物理学 2018-10-09 Debabrata Deb , Sourav Roy Chowdhury , Saibal Ray , Farook Rahaman

We present a simple and easy to implement method for the numerical solution of a rather general class of Hamilton-Jacobi-Bellman (HJB) equations. In many cases, the considered problems have only a viscosity solution, to which, fortunately,…

计算金融 · 定量金融 2011-02-17 Jan Hendrik Witte , Christoph Reisinger

We study kinetic models of reversible enzyme reactions and compare two techniques for analytic approximate solutions of the model. Analytic approximate solutions of non-linear reaction equations for reversible enzyme reactions are…

定量方法 · 定量生物学 2013-01-17 S. Khoshnaw

The famous Perona-Malik (P-M) equation which was at first introduced for image restoration has been solved via various numerical methods. In this paper we will solve it for the first time via applying a new numerical method called Homotopy…

计算机视觉与模式识别 · 计算机科学 2010-08-17 Keyvan Yahya , Jafar Biazar , Hossein Azari , Pouyan Rafiei Fard

We analyze a recent application of homotopy perturbation method to some heat-like and wave-like models and show that its main results are merely the Taylor expansions of exponential and hyperbolic functions. Besides, the authors require…

数学物理 · 物理学 2008-11-18 Francisco M. Fernandez

While quantum computing provides an exponential advantage in solving linear differential equations, there are relatively few quantum algorithms for solving nonlinear differential equations. In our work, based on the homotopy perturbation…

量子物理 · 物理学 2021-12-23 Cheng Xue , Yu-Chun Wu , Guo-Ping Guo

A generalized equation is constructed for a class of classical oscillators with strong anharmonicity which are not exactly solvable. Aboodh transform based homotopy perturbation method (ATHPM) is applied to get the approximate analytical…

经典物理 · 物理学 2019-10-01 K. Manimegalai , Sagar Zephania C F , P. K. Bera , P. Bera , S. K. Das , Tapas Sil

In this paper we introduce a new method for exact decomposition of propagating, nonlinear magnetohydrodynamic (MHD) disturbances into their component eigenenergies associated with the familiar slow, Alfv\'en, and fast wave eigenmodes, and…

太阳与恒星天体物理 · 物理学 2024-02-09 Abbas Raboonik , Lucas Tarr , David Pontin

The Half-Space Matching (HSM) method has recently been developed as a new method for the solution of 2D scattering problems with complex backgrounds, providing an alternative to Perfectly Matched Layers (PML) or other artificial boundary…

Quantum scientific computing is to solve engineering and science problems such as simulation and optimization on quantum computers. Solving ordinary and partial differential equations (PDEs) is essential in simulations. However, existing…

数值分析 · 数学 2026-04-28 Eunsik Choi , Jungin E. Kim , Xueling Lu , Yan Wang