Codice | MOX 6 |
Titolo | Some remarks on the stability coefficients and bubble stabilization of FEM on anisotropic meshes |
Data | 2002-07-01 |
Autore/i | Micheletti, Stefano; Perotto, Simona; Picasso, Marco |
Link | Download full text |
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. |
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