J. Comp. Math., 3 (1985), pp. 219-227.


Approximation Of Boundary Conditions At Infinity For A Harmonic Equation

De-Hao Yu 1

1 Computing Center, Academia Sinica, China

Received 1984-7-26 Revised Online 2006-11-19
Abstract

Starting from the canonical boundary reduction, this paper studies an approximate differential boundary condition and an approximate integral boundary condition on an artificial doundary for the exterior problem of a harmonic equation, and gives an error estimate for the latter. This estimate reveals the relationship between the error and the approximate grade boundary conditions as well as the radius fo the artificial boundary.

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