TY - JOUR AU - Bellalij, M. AU - Saad, Y. AU - Sadok, H. TI - Analysis of some Krylov subspace methods for normal matrices via approximation theory and convex optimization JO - Electronic transactions on numerical analysis PY - 2009 VL - 33 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ETNA_2009__33__a11/ LA - en ID - ETNA_2009__33__a11 ER -