Publicación Artículo científico (article).

Red refinements of simplices into congruent subsimplices

BIRD. BCAM's Institutional Repository Data
oai:bird.bcamath.org:20.500.11824/111
BIRD. BCAM's Institutional Repository Data
  • Korotov, S.
  • Krizek, M.
We show that in dimensions higher than two, the popular "red refinement" technique, commonly used for simplicial mesh refinements and adaptivity in the finite element analysis and practice, never yields subsimplices which are all acute even for an acute father element as opposed to the two-dimensional case. In the three-dimensional case we prove that there exists only one tetrahedron that can be partitioned by red refinement into eight congruent subtetrahedra that are all similar to the original one.
 
DOI: http://hdl.handle.net/20.500.11824/111
BIRD. BCAM's Institutional Repository Data
oai:bird.bcamath.org:20.500.11824/111

HANDLE: http://hdl.handle.net/20.500.11824/111
BIRD. BCAM's Institutional Repository Data
oai:bird.bcamath.org:20.500.11824/111
 
Ver en: http://hdl.handle.net/20.500.11824/111
BIRD. BCAM's Institutional Repository Data
oai:bird.bcamath.org:20.500.11824/111

BIRD. BCAM's Institutional Repository Data
oai:bird.bcamath.org:20.500.11824/111
Artículo científico (article). 2014

RED REFINEMENTS OF SIMPLICES INTO CONGRUENT SUBSIMPLICES

BIRD. BCAM's Institutional Repository Data
  • Korotov, S.
  • Krizek, M.
We show that in dimensions higher than two, the popular "red refinement" technique, commonly used for simplicial mesh refinements and adaptivity in the finite element analysis and practice, never yields subsimplices which are all acute even for an acute father element as opposed to the two-dimensional case. In the three-dimensional case we prove that there exists only one tetrahedron that can be partitioned by red refinement into eight congruent subtetrahedra that are all similar to the original one.