INVESTIGADORES
STORTI Mario Alberto
artículos
Título:
Stability analysis of mixed finite element formulations with special mention to stabilized equal-order interpolations
Autor/es:
STORTI MARIO; NIGRO NORBERTO; IDELSOHN, SERGIO
Revista:
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS
Editorial:
John Wiley and sons
Referencias:
Lugar: Hoboken, New Jersey; Año: 1995 vol. 20 p. 1003 - 1022
ISSN:
0271-2091
Resumen:
We present a method to assess the stability of pairs of interpolation spaces for mixed formulations. The method is based on a straightforward calculation of the eigenvalues of the discrete matrices through Fourier decomposition in plane waves and is intended to give, via straightforward numerical computations, a sharper determination of stability than the well-known patch test of Zienkiewicz et al. Special attention is devoted to the study of stability and accuracy of equal-order interpolations.