Kushnirchuk I F

Publications in Math-Net.Ru

1. Equivalence of third order differential operators with a regular singular point
   
   Sibirsk. Mat. Zh., 19:6 (1978),  1254–1259
2. Necessary and sufficient conditions for the equivalence of differential operators with a regular singular point
   
   Sibirsk. Mat. Zh., 18:2 (1977),  340–347
3. On the question of the similarity of quasitriangular matrices in the space of analytic functions in the disc
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1976, no. 8,  42–51
4. On the completeness of the system of eigenfunctions of a class of partial differential operators
   
   Dokl. Akad. Nauk SSSR, 222:5 (1975),  1020–1023
5. Completeness, and the property of being a basis, of the solutions of a certain differential equation in analytic spaces
   
   Differ. Uravn., 11:7 (1975),  1217–1224
6. The completeness, in analytic spaces in the disc, of the systems of eigenfunctions of linear ordinary differential operators
   
   Differ. Uravn., 11:5 (1975),  924–927
7. On completeness of systems of cylinder functions in analytic spaces
   
   Dokl. Akad. Nauk SSSR, 214:4 (1974),  758–760
8. On the equivalence of Bessel and Euler operators in spaces of functions analytic in a disk
   
   Dokl. Akad. Nauk SSSR, 214:1 (1974),  33–36
9. Equivalence of differential operators with a regular singular point
   
   Funktsional. Anal. i Prilozhen., 8:2 (1974),  83–84
10. The connection of certain bases in an analytic space
    
    Sibirsk. Mat. Zh., 14:4 (1973),  889–894
11. The Cauchy problem for a partial differential equation of $n$th order
    
    Sibirsk. Mat. Zh., 5:5 (1964),  1061–1070
12. On a partial differential equation of higher order
    
    Dokl. Akad. Nauk SSSR, 145:4 (1962),  727–730