Content of Volume 27, no.4, 2021


Author(s) Title of the Article  Page 
A.L. Ageev, T.V. AntonovaAlgorithms for localizing discontinuity lines with a new type of averaging
5
A.F. Albu, Yu.G. Evtushenko, V.I. ZubovApplication of second-order optimization methods for solving an inverse coefficient problem in the three-dimensional statement
19
N.Yu. Antonov, A.N. LukoyanovOrder estimates for Lebesgue constants of Fourier sums in Orlicz spaces
35
M.V. Babenko, V.V. ChermnykhPierce stalks of semirings of skew polynomials
48
A.I. Korotkii, Yu.V. Starodubtseva, I.A. TsepelevGravitational flow of a two-phase viscous incompressible liquid
61
I.V. Melnikova, V.A. BovkunSemigroups of operators related to stochastic processes in an extension of the Gelfand--Shilov classification
74
L.D. PopovOn one method of increasing the smoothness of external penalty functions in linear and convex programming
88
A.K. Ramazanov, V.G. MagomedovaComparison of the remainders of the Simpson quadrature formula and the quadrature formula for three-point rational interpolants
102
B.V. Semisalov, G.A. KuzminOn the question of approximation of smooth functions with boundary layer components
111
V.D. SkarinThe quasisolution method in the analysis of convex programs with singularities
125
A.I. Smirnov, V.D. MazurovA solution algorithm for a problem of optimal exploitation of a system with a binary structure
142
S.V. Solodusha, E.Yu. GrazhdantsevaTest polynomial Volterra equation of the first kind in the problem of input signal identification
161
F.S. Stonyakin, S.S. Ablaev, I.V. BaranAdaptive gradient-type methods for optimization problems with relative error and sharp minimum
175
D.V. KhlopinDifferential game with the possibility of early termination
189
A.P. Khromov, D.V. KornevDivergent series in the Fourier method for the wave equation
215
M.Sh. Shabozov, G.A. Yusupov, J.J. ZargarovOn the best simultaneous polynomial appro\-ximation of functions and their derivatives in Hardy spaces
239
V.T. ShevaldinSubbotin's splines in the problem of extremal interpolation in the space $L_p$ for second-order linear differential operators
255
W. Guo, A.S. Kondrat'ev, N.V. MaslovaRecognition of the group $E_6(2)$ by Gruenberg-Kegel graph
263
J. Li, W. ShiOn some conjectures related to quantitative characterizations of finite nonabelian simple groups
269
A. MisseldineEnumeration techniques on cyclic Schur rings
276