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@article{Bluck:2012:10.4208/cicp.090511.071211a,
author = {Bluck, MJ},
doi = {10.4208/cicp.090511.071211a},
journal = {Communications in Computational Physics},
pages = {1215--1256},
title = {Conforming Hierarchical Basis Functions},
url = {http://dx.doi.org/10.4208/cicp.090511.071211a},
volume = {12},
year = {2012}
}

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TY  - JOUR
AB  - A unified process for the construction of hierarchical conforming bases on a range of element types is proposed based on an ab initio preservation of the under- lying cohomology. This process supports not only the most common simplicial ele- ment types, as are now well known, but is generalized to squares, hexahedra, prisms and importantly pyramids. Whilst these latter cases have received (to varying de- grees) attention in the literature, their foundation is less well developed than for the simplicial case. The generalization discussed in this paper is effected by recourse to basic ideas from algebraic topology (differential forms, homology, cohomology, etc) and as such extends the fundamental theoretical framework established by the work of Hiptmair [16–18] and Arnold et al. [4] for simplices. The process of forming hierar- chical bases involves a recursive orthogonalization and it is shown that the resulting finite element mass, quasi-stiffness and composite matrices exhibit exponential or bet- ter growth in condition number.
AU  - Bluck,MJ
DO  - 10.4208/cicp.090511.071211a
EP  - 1256
PY  - 2012///
SN  - 1815-2406
SP  - 1215
TI  - Conforming Hierarchical Basis Functions
T2  - Communications in Computational Physics
UR  - http://dx.doi.org/10.4208/cicp.090511.071211a
UR  - http://www.global-sci.com/
UR  - http://hdl.handle.net/10044/1/14333
VL  - 12
ER  -

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