A mixed-Lagrange multiplier finite element method for the polyharmonic equation
نویسندگان
چکیده
— A finite element method requiring only C° éléments is developed for the approximation ofthefirst boundary value problem for the polyharmonic équation, based on the reformulation of this problem as a system of second order équations. The resulting linear System of équations can be easily preconditioned and efficiently solved by the conjugate-gradient method.
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