Some fast finite-difference solvers for Dirichlet problems on general domains
Ta Van Dinh (1982)
Aplikace matematiky
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The author proves the existence of the multi-parameter asymptotic error expansion to the five-point difference scheme for Dirichlet problems for the linear and semilinear elliptic PDE on general domains. By Richardson extrapolation, this expansion leads to a simple process for accelerating the convergence of the method.