%0 Journal Article %A Tichý, Petr %A Liesen, Jörg %A Faber, Vance %T On worst-case GMRES, ideal GMRES, and the polynomial numerical hull of a Jordan block %J Electronic transactions on numerical analysis %D 2007 %P 453-473 %V 26 %I mathdoc %U http://geodesic.mathdoc.fr/item/ETNA_2007__26__a1/ %G en %F ETNA_2007__26__a1