Perturbation of mixed variational problems. Application to mixed finite element methods
نویسندگان
چکیده
منابع مشابه
Perturbation of mixed variational problems. Application to mixed finite element methods
Degrees of freedom which are Lagrange multipliers anse in the finite element approximation of mixed vanational problems. When these degrees of freedom are "local", the intioduction of a small perturbation {conespondinq hv duality to a penalty function) enables the élimination of these unknouns at the element level We fitst examine this method in the continuons case and show that the solution of...
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ژورنال
عنوان ژورنال: RAIRO. Analyse numérique
سال: 1978
ISSN: 0399-0516
DOI: 10.1051/m2an/1978120302111