TY - JOUR AU - Verfürth, Rüdiger TI - Error estimates for some quasi-interpolation operators JO - ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique PY - 1999 DA - 1999/// SP - 695 EP - 713 VL - 33 IS - 4 PB - EDP-Sciences UR - http://www.numdam.org/item/M2AN_1999__33_4_695_0/ UR - https://zbmath.org/?q=an%3A0938.65125 UR - https://www.ams.org/mathscinet-getitem?mr=1726480 LA - en ID - M2AN_1999__33_4_695_0 ER -