Publication Results

Code: MOX 6
Title: Some remarks on the stability coefficients and bubble stabilization of FEM on anisotropic meshes
Date: Monday 1st July 2002
Author(s) : Micheletti, Stefano; Perotto, Simona; Picasso, Marco
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Abstract: In this paper we re-address the anisotropic recipe provided for the stability coefficients in [13]. By comparing our approach with the residual-free bubbles theory, we improve on our a priori analysis for both the advection-diffusion and the Stokes problems. In particular, in the case of the advection-diffusion problem we derive a better interpolation error estimate by taking into account in a more anisotropic way the contribution associated with the convective term. Concerning the Stokes problem, we provide a numerical evidence that our ani -so -tro -pic approach is thoroughly comparable with the bubble stabilization, which we study more in detail in our anisotropic framework.