Nonobtuse tetrahedral partitions that refine locally towards Fichera-like corners
Larisa Beilina, Sergey Korotov, Michal Křížek (2005)
Applications of Mathematics
Similarity:
Linear tetrahedral finite elements whose dihedral angles are all nonobtuse guarantee the validity of the discrete maximum principle for a wide class of second order elliptic and parabolic problems. In this paper we present an algorithm which generates nonobtuse face-to-face tetrahedral partitions that refine locally towards a given Fichera-like corner of a particular polyhedral domain.