%0 Journal Article
%A L. Yu. Kolotilina
%T On the extreme eigenvalues of block $2\times2$ Hermitian matrices
%J Zapiski Nauchnykh Seminarov POMI
%D 2003
%P 27-38
%V 296
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_2003_296_a2/
%G ru
%F ZNSL_2003_296_a2