Simonyan S G

Publications in Math-Net.Ru

1. Zones of instability of a one-dimensional periodic Dirac system
   
   Differ. Uravn., 16:3 (1980),  449–453
2. A certain one-dimensional scattering problem in the quasi-classical approximation
   
   Differ. Uravn., 7:4 (1971),  759–762
3. Asymptotics of the width of lacunae in the spectrum of a Sturm–Liouville operator with periodic analytic potential
   
   Differ. Uravn., 6:7 (1970),  1265–1272