dc.contributor.author | Xenophontos, Christos A. | en |
dc.contributor.author | Christodoulou, Evgenia | en |
dc.contributor.author | Georgiou, Georgios C. | en |
dc.creator | Xenophontos, Christos A. | en |
dc.creator | Christodoulou, Evgenia | en |
dc.creator | Georgiou, Georgios C. | en |
dc.date.accessioned | 2019-12-02T10:38:52Z | |
dc.date.available | 2019-12-02T10:38:52Z | |
dc.date.issued | 2010 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/57780 | |
dc.description.abstract | We present a Singular Function Boundary Integral Method (SFBIM) for solving elliptic problems with a boundary singularity. In this method the solution is approximated by the leading terms of the asymptotic solution expansion, which exists near the singular point and is known for many benchmark problems. The unknowns to be calculated are the singular coefficients, i.e. the coefficients in the asymptotic expansion, also called (generalized) stress intensity factors. The discretized Galerkin equations are reduced to boundary integrals by means of Green's theorem and the Dirichlet boundary conditions are weakly enforced by means of Lagrange multipliers, the values of which are introduced as additional unknowns in the resulting linear system. The method is described for two-dimensional Laplacian problems for which the analysis establishes exponential rates of convergence as the number of terms in the asymptotic expansion is increased. We also discuss the extension of the method to three-dimensional Laplacian problems with exhibits edge singularities. | en |
dc.source | Procedia Computer Science | en |
dc.source | 10th International Conference on Computational Science 2010, ICCS 2010 | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-78650259950&doi=10.1016%2fj.procs.2010.04.293&partnerID=40&md5=3c8b0497a8bf1161be81aa6152df555e | |
dc.subject | Problem solving | en |
dc.subject | Approximation theory | en |
dc.subject | Integral equations | en |
dc.subject | Linear systems | en |
dc.subject | Expansion | en |
dc.subject | Lagrange multipliers | en |
dc.subject | Singular points | en |
dc.subject | Laplace transforms | en |
dc.subject | Stress intensity factors | en |
dc.subject | Dirichlet boundary condition | en |
dc.subject | Asymptotic analysis | en |
dc.subject | Boundary singularities | en |
dc.subject | Exponential rates | en |
dc.subject | Green's theorem | en |
dc.subject | Lagrange | en |
dc.subject | Leading terms | en |
dc.subject | Singular function boundary integral methods | en |
dc.subject | Stress intensity | en |
dc.subject | Asymptotic expansion | en |
dc.subject | Boundary integrals | en |
dc.subject | Elliptic problem | en |
dc.subject | Galerkin | en |
dc.subject | Laplacian problems | en |
dc.subject | Boundary approximation methods | en |
dc.subject | Asymptotic solutions | en |
dc.subject | Bench-mark problems | en |
dc.subject | Edge singularities | en |
dc.title | The singular function boundary integral method for Laplacian problems with boundary singularities in two and three-dimensions | en |
dc.type | info:eu-repo/semantics/conferenceObject | |
dc.identifier.doi | 10.1016/j.procs.2010.04.293 | |
dc.description.volume | 1 | |
dc.description.startingpage | 2599 | |
dc.description.endingpage | 2608 | |
dc.author.faculty | Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Μαθηματικών και Στατιστικής / Department of Mathematics and Statistics | |
dc.type.uhtype | Conference Object | en |
dc.description.notes | <p>Sponsors: The Netherlands Organization for Scientific Research (NWO) | en |
dc.description.notes | The Royal Netherlands Academy of Arts and Sciences (KNAW) | en |
dc.description.notes | Elsevier B.V. | en |
dc.description.notes | The University of Amsterdam | en |
dc.description.notes | Conference code: 83058 | en |
dc.description.notes | Cited By :1</p> | en |
dc.contributor.orcid | Xenophontos, Christos A. [0000-0003-0862-3977] | |
dc.contributor.orcid | Georgiou, Georgios C. [0000-0002-7451-224X] | |
dc.gnosis.orcid | 0000-0003-0862-3977 | |
dc.gnosis.orcid | 0000-0002-7451-224X | |