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5.5.5 IUL-factorization in 3D
In the 3D case a new class of interfaces, the 2D surfaces,
in the following called faces, appears. This implies a new group
of nodes and changes vectors into
.
In the same way new blocks appear in the matrices.
While the elimination step remains similar to Alg. 5.17
one has to take care in the factorization.
Gundolf Haase
2000-03-20