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THE ASYMPTOTIC EXPANSION AND EXTRAPOLATION OFTHE SOLUTION OF DU FORT-FRANKEL SCHEMEFOR DIFFUSION PROBLEMS
Yang Qingmin, Gong An, Xie Jian
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS
1993, 10 (1):
1-8.
In this paper, we build the asymptotic expansion of solution of Du Fort-Frankel scheme for diffusion problem and then use extrapolation. The accruacy of the extrapolation solution may achieve O(τ2+h4) and the limitation of consistency is improved greatly.
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