Results 1 to 10 of about 377,173 (164)

Asymptotic stability of the fundamental solution method

open access: yesJournal of Computational and Applied Mathematics, 1991
The Dirichlet problem for the Laplace equation is considered in the circle \(| x|\rho\). The coefficients \(c_ k\) are found from the collocation system \(Ac=g\). An asymptotic estimate for the vector \(u=\Lambda c\) of the type \(\| u\| \leq Kn\| g\|\) is proved with norms related to the space \(R^ n\).
openaire   +4 more sources

The Method of Fundamental Solutions for the 3D Laplace Inverse Geometric Problem on an Annular Domain

open access: yesFractal and Fractional, 2022
In this paper, we are interested in an inverse geometric problem for the three-dimensional Laplace equation to recover an inner boundary of an annular domain. This work is based on the method of fundamental solutions (MFS) by imposing the boundary Cauchy
Mojtaba Sajjadmanesh   +3 more
doaj   +1 more source

Inverse problem of incomplete boundaries and unknown parameters in two-dimensional Poisson equation

open access: yesNantong Daxue xuebao. Ziran kexue ban, 2022
The inverse problem of Poisson equation with incomplete boundary or unknown parameters have been solved by using the method of fundamental solutions (MFS) and Kalman filtering technique.
WANG Yue; JIANG Quan
doaj   +1 more source

Lid-driven cavity flow using dual reciprocity [PDF]

open access: yesMATEC Web of Conferences, 2020
The paper presents the use of the multi-domain dual reciprocity method of fundamental solutions (MD-MFSDR) for the analysis of the laminar viscous flow problem described by Navier-Stokes equations.
Mužík Juraj, Bulko Roman
doaj   +1 more source

A Localized Method of Fundamental Solution for Numerical Simulation of Nonlinear Heat Conduction

open access: yesMathematics, 2022
In this study, an efficient localized method of fundamental solution (LMFS) is applied to nonlinear heat conduction with mixed boundary conditions. Since the thermal conductivity is temperature-dependent, the Kirchhoff transformation is used to transform
Feng Wang, Yan-Cheng Liu, Hui Zheng
doaj   +1 more source

Numerical Simulations of Tank Sloshing Problems Based on Moving Pseudo-Boundary Method of Fundamental Solution

open access: yesJournal of Marine Science and Engineering, 2023
The moving pseudo-boundary method of fundamental solutions (MFS) was employed to solve the Laplace equation, which describes the potential flow in a two-dimensional (2D) numerical wave tank.
Chengyan Wang   +3 more
doaj   +1 more source

Applicability and applications of the method of fundamental solutions [PDF]

open access: yesMathematics of Computation, 2009
Summary: We investigate the applicability of the method of fundamental solutions for the solution of boundary value problems of elliptic partial differential equations and elliptic systems. More specifically, we study whether linear combinations of fundamental solutions can approximate the solutions of the boundary value problems under consideration ...
Smyrlis, Yiorgos-Sokratis   +1 more
openaire   +2 more sources

Asymptotic Solution of a Singularly Perturbed Integro-Differential Equation with Exponential Inhomogeneity

open access: yesAxioms, 2023
The integro-differential Cauchy problem with exponential inhomogeneity and with a spectral value that turns zero at an isolated point of the segment of the independent variable is considered.
Burkhan Kalimbetov   +2 more
doaj   +1 more source

Novel Numerical Method Based on the Analog Equation Method for a Class of Anisotropic Convection-Diffusion Problems

open access: yesFrontiers in Physics, 2022
In this work, a CMFS method based on the analogy equation method, the radial basis function and the method of fundamental solutions for linear and nonlinear convection-diffusion equations in anisotropic materials is presented.
L Zhang   +8 more
doaj   +1 more source

A well conditioned Method of Fundamental Solutions

open access: yesCoRR, 2021
The method of fundamental solutions (MFS) is a numerical method for solving boundary value problems involving linear partial differential equations. It is well known that it can be very effective assuming regularity of the domain and boundary conditions.
openaire   +2 more sources

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