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Implementations Of Boundary-Domain Integro-Differential Equation For Dirichlet BVP With Variable Coefficient

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dc.contributor.authorNurul Akmal Mohameden_US
dc.contributor.authorNur Fadhilah Ibrahimen_US
dc.contributor.authorMohd Rozni Md Yusofen_US
dc.contributor.authorNurul Farihan Mohameden_US
dc.contributor.authorNurul Huda Mohameden_US
dc.date.accessioned2024-05-28T05:47:29Z
dc.date.available2024-05-28T05:47:29Z
dc.date.issued2016
dc.descriptionVol. 78 No. 6-5: Sciences and Mathematics Part IIen_US
dc.description.abstractIn this paper, we present the numerical results of the Boundary-Domain Integro-Differential Equation (BDIDE) associated to Dirichlet problem for an elliptic type Partial Differential Equation (PDE) with a variable coefficient. The numerical constructions are based on discretizing the boundary of the problem region by utilizing continuous linear iso-parametric elements while the domain of the problem region is meshed by using iso-parametric quadrilateral bilinear domain elements. We also use a semi-analytic method to handle the integration that exhibits logarithmic singularity instead of using Gauss-Laguare quadrature formula. The numerical results that employed the semi-analytic method give better accuracy as compared to those when we use Gauss-Laguerre quadrature formula. The system of equations that obtained by the discretized BDIDE is solved by an iterative method (Neumann series expansion) as well as a direct method (LU decomposition method). From our numerical experiments on all test domains, the relative errors of the solutions when applying semi-analytic method are smaller than when we use Gauss-Laguerre quadrature formula for the integration with logarithmic singularity. Unlike Dirichlet Boundary Integral Equation (BIE), the spectral properties of the Dirichlet BDIDE is not known. The Neumann iterations will converge to the solution if and only if the spectral radius of matrix operator is less than 1. In our numerical experiment on all the test domains, the Neumann series does converge. It gives some conclusions for the spectral properties of the Dirichlet BDIDE even though more experiments on the general Dirichlet problems need to be carried out.en_US
dc.identifier.doi10.11113/jt.v7-0
dc.identifier.epage77
dc.identifier.issn2180-3722
dc.identifier.issue6-5
dc.identifier.spage71
dc.identifier.urihttps://journals.utm.my/jurnalteknologi/article/view/9003
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/6504
dc.identifier.volume78
dc.language.isoen_USen_US
dc.publisherPenerbit UTM Pressen_US
dc.relation.ispartofJurnal Teknologien_US
dc.subjectBoundary-domain integro-differential equation, dirichlet problem, partial differential equation, semi-analytic integration methoden_US
dc.titleImplementations Of Boundary-Domain Integro-Differential Equation For Dirichlet BVP With Variable Coefficienten_US
dc.typeArticleen_US
dspace.entity.typePublication

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