2019
Том 71
№ 11

# Izvekov I. G.

Articles: 2
Article (Russian)

### On Gevrais classes of certain self-adjoint differential operators with degeneration

Ukr. Mat. Zh. - 1993. - 45, № 12. - pp. 1622–1626

Classical spaces of ultra-diffcrentiable funetions on $[-1,1]$ are compared with the Gevrais classes of а self-adjoint differentiable operator whose eigenfunetions an the orthogonal Jacobi polynomials.

Article (Ukrainian)

### Localization principle for expansions of generalized functions with respect to the eigenfunctions of the Sturm-Liouville operator on a finite interval

Ukr. Mat. Zh. - 1991. - 43, № 5. - pp. 703–706