%0 Journal Article %A Yu. Kh. Èshkabilov %T On infinite number of negative eigenvalues of the Friedrichs model %J Nanosistemy: fizika, himiâ, matematika %D 2012 %P 16-24 %V 3 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/NANO_2012_3_6_a1/ %G ru %F NANO_2012_3_6_a1