activity
20072026
most citedInterpolation Hilbert spaces between Sobolev spaces

30 citations · 128 across the 34 of their papers we have counts for

collaborators

39 papers

math.AP2026

Matrix parabolic problems in Sobolev spaces of generalized smoothness

Valerii Los, Vladimir Mikhailets, Aleksandr Murach

We study a general linear parabolic problem for Petrovskii parabolic differential system in Sobolev anisotropic distribution spaces of generalized smoothness. Slowly varying functi…

math.AP2025

Elliptic boundary-value problems in some distribution spaces of generalized smoothness

Anna Anop, Aleksandr Murach

We build a solvability theory of elliptic boundary-value problems in normed Sobolev spaces of generalized smoothness for any integrability exponent . The smoothness is given b…

math.FA2024

Distribution spaces associated with elliptic operators

Iryna Chepurukhina, Aleksandr Murach

We study complex distribution spaces given over a bounded Lipschitz domain and associated with an elliptic differential operator with -coefficients on $\overlin…

math.AP2024

Extended Sobolev scale for vector bundles, and its applications

Aleksandr Murach, Tetiana Zinchenko

We study an extended Sobolev scale for smooth vector bundles over a smooth closed manifold. This scale is built on the base of inner product distribution spaces of generalized smoo…

math.FA2023★ 4 cited

Unconditional convergence of eigenfunction expansions for abstract and elliptic operators

Vladimir Mikhailets, Aleksandr Murach

We study the most general class of eigenfunction expansions for abstract normal operators with pure point spectrum in a complex Hilbert space. We find sufficient conditions for suc…

math.CA2023

A new look at old theorems of Fejér and Hardy

Vladimir Mikhailets, Aleksandr Murach, Oksana Tsyhanok

The article studies the convergence of trigonometric Fourier series via a new Tauberian theorem for Cesàro summable series in abstract normed spaces. This theorem generalizes some…