%0 Journal Article
%A F. L. Bakharev
%A S. A. Nazarov
%T Criteria for the absence and existence of bounded solutions at the threshold frequency in a junction of quantum waveguides
%J Algebra i analiz
%D 2020
%P 1-23
%V 32
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AA_2020_32_6_a0/
%G ru
%F AA_2020_32_6_a0