Digitale Medien
Chichester
:
Wiley-Blackwell
Communications in Numerical Methods in Engineering
13 (1997), S. 553-564
ISSN:
1069-8299
Schlagwort(e):
mixed methods
;
high-order finite differences
;
compact stencils
;
superconvergence
;
Engineering
;
Numerical Methods and Modeling
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Mathematik
,
Technik allgemein
Notizen:
We develop a class of higher-order mixed finite difference methods for elliptic partial differential equations. The problem is recast as a first-order mixed system and the higher-order compact schemes follow as a natural extension of the formulations we developed previously for the scalar PDE problem. Since the flux appears explicitly in the mixed formulation we obtain higher-order (nodal superconvergent) solutions in both the primary solution field and also the flux. Some supporting numerical experiments are included to demonstrate the superconvergent rates. © 1997 John Wiley & Sons, Ltd.
Zusätzliches Material:
6 Ill.
Materialart:
Digitale Medien
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