%0 Generic
%A  Labovskiy Sergey M.
%D 2020
%F acta:70936
%K Differenciálegyenlet
%N 52
%T On discreteness of spectrum of a second order differential operator
%U http://acta.bibl.u-szeged.hu/70936/
%X A new form of a necessary and sufficient conditions for the discreteness of the spectrum of singular operator − 1 ρ(x) (p(x)u 0 0 , −∞ ≤ a ≤ x ≤ b ≤ +∞ is obtained. A simpler proof of the necessity is obtained.
%Z Bibliogr.: 9. p. ; összefoglalás angol nyelven