Vol. 74 No. 6 (2022)

Research articles

• Paley – Wiener type theorem for functions with values in Banach spaces

  H. H. Bang, V. N. Huy

  731 - 742

  • pdf

• Characterization by order and degree pattern of the simple groups $O^{-}_{8}(q)$ for certain $q$

  M. Bibak, G. H. Rezaeezadeh

  743 - 751

  • pdf

• A twisted group algebra structure for an algebra obtained by the Cayley – Dickson process

  R. Boboescu, C. Flaut

  752 - 760

  • pdf (Ukrainian)

• First cohomology space of the orthosymplectic Lie superalgebra $\mathfrak{osp}(n|2)$ in the Lie superalgebra of superpseudodifferential operators

  M. Boujelben

  761 - 771

  • pdf

• Best orthogonal trigonometric approximations of the Nikol'skii – Besov-type classes of periodic functions in the space $B_{\infty,1}$

  S. B. Hembars’ka, P. V. Zaderei

  772 - 783

  • pdf (Ukrainian)

• Infinite order differential operators in the module of formal generalized functions and in a ring of formal power series

  S. L. Hefter, O. L. Piven’

  784 - 799

  • pdf (Ukrainian)

• Asymptotic behavior of solutions of third-order differential equations with rapidly varying nonlinearity

  V. M. Evtukhov, N. V. Sharay

  800 - 816

  • pdf (Ukrainian)

• On equicontinuity of families of mappings with one normalization condition by the prime ends

  N. S. Ilkevych, E. A. Sevost’yanov

  817 - 825

  • pdf (Ukrainian)

• Nonlinear skew commuting maps on $\ast$-rings

  L. Kong, J. Zhang

  826 - 831

  • pdf

• $b$ -Generalized derivations on prime rings

  T. Pehlivan, E. Albaş

  832 - 843

  • pdf

• Approximation of classes of periodic functions in one and many variables from the Nikol’skii – Besov and Sobolev spaces

  A. S. Romanyuk, S. Ya. Yanchenko

  844 - 855

  • pdf (Ukrainian)

• Boundary-value problem for a class of nonlinear systems of partial differential equations of higher orders

  S. S. Kharibegashvili, B. G. Midodashvili

  856 - 868

  • pdf (Ukrainian)