Diagonal Dominance and Positive Definiteness of Upwind Approximations for Advection Diffusion Problems
We examine whether three different upwind schemes for the positive definite advection diffusion problem can yield indefinite coefficient matrices. In particular, in line with the increasing use of adaptive meshes, we are concerned with discretisations on arbitrary grids but only in one dimension. We...
| Main Authors: | , , |
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| Format: | Report |
| Published: |
Unspecified
1996
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