%0 Journal Article %A Kh. D. Ikramov %A A. M. Nazari %T On the 2-norm distance from a~normal matrix to the set of matrices with a~multiple zero eigenvalue %J Zapiski Nauchnykh Seminarov POMI %D 2005 %P 50-56 %V 323 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2005_323_a5/ %G ru %F ZNSL_2005_323_a5