Apyshev O D

Publications in Math-Net.Ru

1. Distribution of eigenvalues of one-dimensional operators with coefficients that are rapidly increasing in the mean
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1982, no. 5,  3–8
2. On the spectrum of a class of binomial operators
   
   Dokl. Akad. Nauk SSSR, 248:2 (1979),  265–268
3. On the spectrum of a class of differential operators and some imbedding theorems
   
   Izv. Akad. Nauk SSSR Ser. Mat., 43:4 (1979),  739–764