TY  - JOUR
AU  - A. V. Knyazev
TI  - Sharp a priori error estimates of the Rayleigh--Ritz method without assumptions of fixed sign or compactness
JO  - Matematičeskie zametki
PY  - 1985
SP  - 900
EP  - 907
VL  - 38
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1985_38_6_a10/
LA  - ru
ID  - MZM_1985_38_6_a10
ER  -