%0 Journal Article %A Armentia, Gorka %A Gracia, Juan-Miguel %A Velasco, Francisco E. %T Derivatives of the diameter and the area of a connected component of the pseudospectrum %J The electronic journal of linear algebra %D 2011 %P 1004-1019 %V 22 %I mathdoc %U http://geodesic.mathdoc.fr/item/ELA_2011__22__a12/ %G en %F ELA_2011__22__a12