%0 Journal Article
%A T. H. Rasulov
%A E. B. Dilmurodov
%T Investigations of the Numerical Range of a Operator Matrix
%J Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences
%D 2014
%P 50-63
%V 135
%N 2
%U http://geodesic.mathdoc.fr/item/VSGTU_2014_135_2_a4/
%G ru
%F VSGTU_2014_135_2_a4