Results 21 to 30 of about 63,984 (305)

High-frequency asymptotics for the modified Helmholtz equation in a half-plane [PDF]

open access: goldBoundary Value Problems, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Huang Min-hai
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A Modified Natural BEM for Exterior Problems of the Helmholtz Equation [PDF]

open access: hybridAdvances in Intelligent Systems Research, 2015
In this paper, a modified natural boundary element method (MNBEM) by using a modified DtN operator to improve the natural boundary element method (NBEM) is proposed for Neumann BVPs of the Helmholtz equation on unbounded domains. We prove the existence and the uniqueness of the solution of its variational problem in L 2 (Γ), and obtain L 2 error ...
Quan Zheng, Yue Gao
openalex   +3 more sources

Boundary value problems for modified Helmholtz equations and applications [PDF]

open access: goldBoundary Value Problems, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Longfei Gu, Zunwei Fu
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PENENTUAN JENIS FUNGSI BASIS RADIAL DALAM DUAL RECIPROCITY BOUNDARY ELEMENT METHOD

open access: yesMajalah Ilmiah Matematika dan Statistika, 2021
Problems involving modified Helmholtz equation are considered in this paper. To solve the problem numerically, dual reciprocity boundary element method (DRBEM) is employed.
Millatuz Zahroh
doaj   +1 more source

A Modified SSOR Preconditioning Strategy for Helmholtz Equations [PDF]

open access: yesJournal of Applied Mathematics, 2011
The finite difference method discretization of Helmholtz equations usually leads to the large spare linear systems. Since the coefficient matrix is frequently indefinite, it is difficult to solve iteratively. In this paper, a modified symmetric successive overrelaxation (MSSOR) preconditioning strategy is constructed based on the coefficient matrix and
Wu, Shi-Liang, Li, Cui-Xia
openaire   +4 more sources

Application of DRBEM for 2D sine-Gordon equation

open access: yesJournal of Taibah University for Science, 2021
This research paper introduces an application of dual reciprocity boundary element method (DRBEM) for the solution of sine-Gordon equation (SGE) in two-space dimension. Initially, the time derivatives are expanded using central difference schemes.
Nagehan Alsoy-Akgün
doaj   +1 more source

A diffraction problem for the biharmonic wave equation in one-dimensional periodic structures

open access: yesResults in Applied Mathematics, 2023
This work concerns the propagation of flexural waves through one-dimensional periodic structures embedded in thin elastic plates. We show that the out-of-plane displacement of the plate only contains the Helmholtz wave component and the modified ...
Junhong Yue   +3 more
doaj   +1 more source

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