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DCMG0 1: A multigrid code with defect correction to solve \(\Delta U\)- c(x,y)U\(=f(x,y)\) (on \(\Omega\)), \(U=g(x,y)\) (on \(\partial\Omega)\) on nonrectangular bounded domains \(\Omega\) with high accuracy. (English) Zbl 0551.65069
Arbeitspapiere der GMD 127. St. Augustin: GMD. 24 p. (1985).
DCMG0 1 is an extension of the multigrid program MG0 1 to solve the Helmholtz equation with Dirichlet boundary conditions by difference methods in general bounded domains \(\Omega \subset R^ 2\) with high accuracy. The extension is based on a defect correction principle. DCMG01 has been developed and tested in Fortran 77 (single precision) on a CDC CYBER 170 computer (48 bit mantissa).
MSC:
65N22 Numerical solution of discretized equations for boundary value problems involving PDEs
65F10 Iterative numerical methods for linear systems
35-04 Software, source code, etc. for problems pertaining to partial differential equations
35J05 Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation
Software:
DCMG0 1
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