Abstract
The main developments of the CVBEM given in the paper consists in removing the need for approximating the boundary curve by a poligonal line and the introduction of the singular boundary elements for the case of re-entrant corners or collision points on the boundary. The paper gives also explicit formulae for solving the mixed Dirichlet-Neumann boundary value problem for two-dimensional Laplace equation by CVBEM. The Fortran program MIXED coded by this idea is applied to some test problems.
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