%0 Journal Article
%A Heydar Radjavi
%A Ping-Kwan Tam
%A Kok-Keong Tan
%T A perturbation characterization of compactness
 of self-adjoint operators
%J Studia Mathematica
%D 2003
%P 199-205
%V 158
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/sm158-3-1/
%R 10.4064/sm158-3-1
%G en
%F 10_4064_sm158_3_1