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Vol. 73 No. 7 (2021)

Published: 22.07.2021

Research articles

Autonomous nonlinear boundary-value problems for the Lyapunov equation in Hilbert space

D. S. Bihun, O. O Pokutnyi, E. V. Panasenko

867 - 878
- pdf (Ukrainian)
Inequalities for complex rational functions

M. Bidkham, E. Khojastehnezhad

879 - 886
- pdf
- pdf
Semi-nonoscillation intervals and sign-constancy of Green’s functions of two-point impulsive boundary-value problems

A. Domoshnitsky, Iu. Mizgireva, V. Raichik

887 - 901
- pdf
$p$ -Adic Markov process and the problem of the first return over balls

O. F. Casas-Sánchez, J. Galeano-Peñaloza, J. J. Rodríguez-Vega

902 - 912
- pdf
On Fischer subgroups of finite groups

Yu. Mao , X. Ma, N. Т. Vorob'ev, T. B. Karaulova

913 - 919
- pdf (Ukrainian)
Fredholm boundary-value problem in Sobolev – Slobodetsky spaces

V. A. Mikhailets, T. B. Skorobohach

920 - 930
- pdf (Ukrainian)
Ricci soliton biharmonic hypersurfaces in the Euclidean space

N. Mosadegh, E. Abedi, M. Ilmakchi

931 - 937
- pdf
On constructive description of Gibbs measures for the Potts model on a Cayley tree

M. Rahmatullaev, F. К. Rafikov , Sh. Kh. Azamov

938 - 950
- pdf (Ukrainian)
Boundary extension of mappings that satisfy the Poletsky inverse inequality in terms of prime ends

E. A. Sevost’yanov

951 - 963
- pdf (Ukrainian)
Approximation by rational functions on doubly connected domains in weighted generalized grand Smirnov classes

A. Testici

964 - 978
- pdf
Weighted Lebesgue and central Morrey estimates for $p$ -adic multilinear Hausdorff operators and its commutators

N. M. Chuong, D. V. Duong, K. H. Dung

979 - 1004
- pdf

Short communications

Chernikov 2-groups with the Kleinian top and totally reducible bottoms

Yu. A. Drozd, А. І. Plakosh

1005 - 1008
- pdf (Ukrainian)