No. 4 (2021): Reports of the National Academy of Sciences of Ukraine

View No. 4 (2021): Reports of the National Academy of Sciences of Ukraine
DOI: https://doi.org/10.15407/dopovidi2021.04
Published: 26.08.2021

Mathematics

  • Fredholm boundary- value problems with parameter in Sobolev— Slobodetsky spaces

    DOI: https://doi.org/10.15407/dopovidi2021.04.003
    V.A. Mikhailets, T.B. Skorobohach
    3-8

  • Flags of subalgebras in contracted Lie algebras

    DOI: https://doi.org/10.15407/dopovidi2021.04.009
    D. R. Popovych
    9-17

  • An extremal problem for the invariant differential operators on a class of Cauchy-type integrals

    DOI: https://doi.org/10.15407/dopovidi2021.04.018
    V.V. Savchuk, M.V. Savchuk
    18-23

  • On the primitive irreducible representations of finitely generated nilpotent groups

    DOI: https://doi.org/10.15407/dopovidi2021.04.024
    A.V. Tushev
    24-27

Information Science and Cybernetics

  • Convergence of the operator extrapolation method

    DOI: https://doi.org/10.15407/dopovidi2021.04.028
    V.V. Semenov, D.S. Siryk, O.S. Kharkov
    28-35

Mechanics

Materials Science

  • Electrophysical properties of A3 IILaNb3O12 (AII = Sr, Ba) with slab perovskite-like structure

    DOI: https://doi.org/10.15407/dopovidi2021.04.053
    Y.A. Titov, M.S. Slobodyanik, R.N. Kuzmin, V.V. Chumak
    53-60

Geosciences

Chemistry

  • Sorption of ions Cu(II), Cd(II), Co(II), Zn(II), and Cr(VI) by a composite sorbent on the base of nano-sized iron

    DOI: https://doi.org/10.15407/dopovidi2021.04.070
    I.A. Kovalchuk, I.V. Pylypenko, V.Yu. Tobilko, B.Yu. Kornilovych
    70-76

  • A new method for the synthesis of nanomaterials for the needs of nanotechnologies

    DOI: https://doi.org/10.15407/dopovidi2021.04.077
    O.M. Korduban, T.V. Kryshchuk, M.M. Medvedskij
    77-85

Biology

  • Bioclimatic factors and the course of the COVID-19 pandemic in Europe: the place of Ukraine

    DOI: https://doi.org/10.15407/dopovidi2021.04.086
    S.V. Mezhzherin, I.I. Kozynenko, V.M. Tytar
    86-93

Biochemistry

Biophysics