TY - JOUR T1 - A New Approach to Stability of Finite Elements Under Divergence Constraints AU - Zhou , Tian-Xiao AU - Feng , Min-Fu AU - Xiong , Hua-Xin JO - Journal of Computational Mathematics VL - 3 SP - 209 EP - 223 PY - 1992 DA - 1992/10 SN - 10 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/jcm/9354.html KW - AB -
A new stability inequality for velocity-pressure F.E. approximations of Stokes (or Navier-Stokes) problems is presented in this paper. It is proved that the inequality holds if the so-called patch test of rank non-deficiency is passed. As a use of the new criterion, the stability of various new and old combinations of velocity interpolations with pressure interpolations is discussed.