Petrukhnovskii S I

Publications in Math-Net.Ru

1. On discreteness of the spectrum of some operator sheaves associated with a periodic Schrödinger equation
   
   TMF, 74:1 (1988),  94–102
2. Some geometric properties of Fermi surfaces
   
   Dokl. Akad. Nauk SSSR, 264:5 (1982),  1117–1119