TY  - JOUR
AU  - Yu. R. Akopian
AU  - R. Z. Hovhannisyan
TI  - On the two-level preconditioning in least squares method
JO  - Proceedings of the Yerevan State University. Physical and mathematical sciences
PY  - 2014
SP  - 7
EP  - 15
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/UZERU_2014_1_a1/
LA  - en
ID  - UZERU_2014_1_a1
ER  -