TY - JOUR AU - Aubin, Jean Pierre TI - Behavior of the error of the approximate solutions of boundary value problems for linear elliptic operators by Galerkin's and finite difference methods JO - Annali della Scuola Normale Superiore di Pisa - Scienze Fisiche e Matematiche PY - 1967 SP - 599 EP - 637 VL - 21 IS - 4 PB - Scuola normale superiore UR - http://www.numdam.org/item/ASNSP_1967_3_21_4_599_0/ LA - en ID - ASNSP_1967_3_21_4_599_0 ER -