No. 2 (106)/2022

DOI: https://doi.org/10.31489/2518-7929/2022-106-2
Published: 30.06.2022

Full Issue

MATHEMATICS

  • Approximate solutions of the Riemann problem for a two-phase flow of immiscible liquids based on the Buckley–Leverett model

    Views: 147
    Y.S. Aldanov, T.Zh. Toleuov, N. Tasbolatuly
    4-17
    DOI: https://doi.org/10.31489/2022m2/4-17

  • On the nonlocal problems in time for subdiffusion equations with the Riemann-Liouville derivatives

    Views: 185
    R.R. Ashurov, Yu.E. Fayziev
    18-37
    DOI: https://doi.org/10.31489/2022m2/18-37

  • On a second-order integro-differential equation with difference kernels and power nonlinearity

    Views: 120
    S.N. Askhabov
    38-48
    DOI: https://doi.org/10.31489/2022m2/38-48

  • Boundary control problem for a hyperbolic equation loaded along one of its characteristics

    Views: 127
    A.Kh. Attaev
    49-58
    DOI: https://doi.org/10.31489/2022m2/49-58

  • Inner boundary value problem with displacement for a second order mixed parabolic-hyperbolic equation

    Views: 128
    Zh.A. Balkizov, Z.Kh. Guchaeva, A.Kh. Kodzokov
    59-71
    DOI: https://doi.org/10.31489/2022m2/59-71

  • Examples of weakly compact sets in Orlicz spaces

    Views: 120
    D. Dauitbek, Y. Nessipbayev, K. Tulenov
    72-82
    DOI: https://doi.org/10.31489/2022m2/72-82

  • An analogue of the Lyapunov inequality for an ordinary second-order differential equation with a fractional derivative and a variable coefficient

    Views: 134
    B.I. Efendiev
    83-92
    DOI: https://doi.org/10.31489/2022m2/83-92

  • Integro-differential equations with bounded operators in Banach spaces

    Views: 157
    V.E. Fedorov, A.D. Godova, B.T. Kien
    93-107
    DOI: https://doi.org/10.31489/2022m2/93-107

  • Generalized boundary value problem for a linear ordinary differential equation with a discretely distributed fractional differentiation operator

    Views: 159
    L.Kh. Gadzova
    108-116
    DOI: https://doi.org/10.31489/2022m2/108-116

  • An initial boundary value problem for the Boussinesq equation in a Trapezoid

    Views: 142
    M.T. Jenaliyev, A.S. Kassymbekova, M.G. Yergaliyev, A.A. Assetov
    117-127
    DOI: https://doi.org/10.31489/2022m2/117-127

  • Inverse problems of determining coefficients of time type in a degenerate parabolic equation

    Views: 149
    A.I. Kozhanov, U.U. Abulkayirov, G.R. Ashurova
    128-142
    DOI: https://doi.org/10.31489/2022m2/128-142

  • Boundary value problem for a system of partial differential equations with the Dzhrbashyan–Nersesyan fractional differentiation operators

    Views: 126
    M.O. Mamchuev
    143-160
    DOI: https://doi.org/10.31489/2022m2/143-160

  • Steklov problem for a linear ordinary fractional delay differential equation with the Riemann-Liouville derivative

    Views: 130
    M.G. Mazhgikhova
    161-171
    DOI: https://doi.org/10.31489/2022m2/161-171

  • Existentially positive Mustafin theories of S-acts over a group

    Views: 149
    A.R. Yeshkeyev, O.I. Ulbrikht, A.R. Yarullina
    172-185
    DOI: https://doi.org/10.31489/2022m2/172-185

  • On a mixed problem for Hilfer type differential equation of higher order

    Views: 149
    T.K. Yuldashev, B.J. Kadirkulov, Kh.R. Mamedov
    186-201
    DOI: https://doi.org/10.31489/2022m2/186-201

  • A problem with shift for a mixed-type model equation of the second kind in an unbounded domain

    Views: 125
    R.T. Zunnunov, A.A. Ergashev
    202-207
    DOI: https://doi.org/10.31489/2022m2/202-207