TY - JOUR T1 - An Inf-Sup Stabilized Finite Element Method by Multiscale Functions for the Stokes Equations AU - Ge , Zhihao AU - He , Yinnian AU - Song , Lingyu JO - Advances in Applied Mathematics and Mechanics VL - 2 SP - 273 EP - 287 PY - 2009 DA - 2009/01 SN - 1 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/aamm/8369.html KW - stabilized finite element method, multiscale functions, Petrov-Galerkin approach, inf-sup condition. AB -
In the paper, an inf-sup stabilized finite element method by multiscale functions for the Stokes equations is discussed. The key idea is to use a Petrov-Galerkin approach based on the enrichment of the standard polynomial space for the velocity component with multiscale functions. The inf-sup condition for $P_1$-$P_0$ triangular element (or $Q_1$-$P_0$ quadrilateral element) is established. And the optimal error estimates of the stabilized finite element method for the Stokes equations are obtained.