In this paper, (d + 1)-pencil lattices on simplicial partitions in R d , which are not simply connected, are studied. It is shown, how the fact that a partition is not simply connected can be used to increase the flexibility of a lattice. A local modification algorithm is developed also to deal with
Lattices on simplicial partitions
✍ Scribed by Gašper Jaklič; Jernej Kozak; Marjeta Krajnc; Vito Vitrih; Emil Žagar
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 880 KB
- Volume
- 233
- Category
- Article
- ISSN
- 0377-0427
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✦ Synopsis
In this paper, (d + 1)-pencil lattices on simplicial partitions in R d are studied. The barycentric approach naturally extends the lattice from a simplex to a simplicial partition, providing a continuous piecewise polynomial interpolant over the extended lattice. The number of degrees of freedom is equal to the number of vertices of the simplicial partition. The constructive proof of this fact leads to an efficient computer algorithm for the design of a lattice.
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