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Content
Volume 18 (2021), N 2
Mathematical logic, algebra and number theory
Ibraev Sh. Sh., Turbayev B. T.
Cohomology for the Lie algebra of type A2 over a field of characteristic 2, pp. 729-739.
PDF DOI 10.33048/semi.2021.18.053
Ghaedan N., Vedadi M. R.
When a (dual-)Baer module is a direct sum of (co-)prime modules, pp. 782-791.
PDF DOI 10.33048/semi.2021.18.057
Gubarev V.
An example of a simple double Lie algebra, pp. 834-844.
PDF DOI 10.33048/semi.2021.18.062
Pinus A. G.
On spaces of functional clones, pp. 901-904. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.068
Kuznetsov S. L.
Kleene star, subexponentials without contraction, and infinite computations, pp. 905-922.
PDF DOI 10.33048/semi.2021.18.069
Bazhenov N.
HKSS-Completeness of modal algebras, pp. 923-930.
PDF DOI 10.33048/semi.2021.18.070
Sharankhaev I. K.
On read-once multifunctions in some base, pp. 1098-1104. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.084
Antipova I. A., Kleshkova E. A.
On facets of the Newton polytope for the discriminant of the polynomial system, pp. 1180-1188.
PDF DOI 10.33048/semi.2021.18.089
Badmaev S. A., Dugarov A. E., Fomina I. V., Sharankhaev I. K.
On some intervals in the lattice of ultraclones of rank 2, pp. 1210-1218. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.092
Isaev I. M.
On the join of Cross varieties of algebras, pp. 1299-1306. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.099
Skurikhin E. E., Stepanova A. A., Sukhonos A. G.
Extensions of the category S-Act, pp. 1332-1357.
PDF DOI 10.33048/semi.2021.18.102
Geometry and Topology
Sabitov I. Kh.
New proofs of infinitesimal rigidity of convex polyhedra and convex surfaces of revolution, pp. 740-743. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.054
Blali A., El Amrani A., Hassani R. A., Razouki A.
On the uniqueness of I-limits of sequences, pp. 744-757.
PDF DOI 10.33048/semi.2021.18.055
Bolotov D. V.
On PL embeddings of a 2-sphere in the 4-dimensional Euclidean space, pp. 867-883.
PDF DOI 10.33048/semi.2021.18.066
Klyachin V. A., Chebanenko N. A.
On geometrical properties of continuous mappings which preserve orientation of simplices, pp. 985-996. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.074
Sabitov I. Kh.
On metrics admitting a discontinuum set of non-congruent immersions in R3, pp. 1023-1026. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.077
Abrosimov N. V., Vuong B.
The volume of a spherical antiprism with S2n symmetry, pp. 1165-1179.
PDF DOI 10.33048/semi.2021.18.088
Korablev Ph. G.
Quandles, quasoids and projections, pp. 1261-1277. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.096
Efremenko Yu. D.
On semi-implicit numerical method for surface diffusion equation for triangulated surfaces, pp. 1367-1389.
PDF DOI 10.33048/semi.2021.18.104
Nezhinskij V. M.
Spatial graphs and their isotopy classification, pp. 1390-1396.
PDF DOI 10.33048/semi.2021.18.105
Discrete mathematics and mathematical cybernetics
Tsiovkina L. Yu.
On a class of vertex-transitive distance-regular covers of complete graphs, pp. 758-781. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.056
Glebov A. N.
Path partitioning planar graphs with restrictions on short cycles, pp. 975-984. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.073
Sayinath Udupa, Bhat R. S.
Vertex-vertex color energy of a graph, pp. 1027-1034.
PDF DOI 10.33048/semi.2021.18.078
Makhnev A. A., Nirova M. S.
Distance-regular Terwilliger graphs with intersection arrays {50,42,1;1,2,50} and {50,42,9;1,2,42} do not exist, pp. 1075-1082. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.082
Solov'eva F. I.
Minimum weight bases for quaternary Reed-Muller codes, pp. 1358-1366.
PDF DOI 10.33048/semi.2021.18.103
Goryainov S. V., Panasenko D. I., Shalaginov L. V.
Enumeration of strictly Deza graphs with at most 21 vertices, pp. 1423-1432.
PDF DOI 10.33048/semi.2021.18.107
Computational mathematics
Lomov A. A.
Operator-orthoregressive methods for identifying coefficients of linear difference equations, pp. 792-804.
PDF DOI 10.33048/semi.2021.18.058
Germider O. V., Popov V. N.
An application of the Chebyshev collocation method for the calculation of a mass flux in a long concentric annular channel, pp. 805-816.
PDF DOI 10.33048/semi.2021.18.059
Belykh V. N.
On the question of good conditionality of unsaturated quadrature formulas, pp. 1083-1097. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.083
Tarasyuk I. V.
Performance evaluation in stochastic process algebra dtsdPBC, pp. 1105-1145.
PDF DOI 10.33048/semi.2021.18.085
Kokurin M. Yu., Nedopekin A. E.
Iteratively regularized Gauss-Newton method in the inverse problem of ionospheric radiosonding, pp. 1153-1164.
PDF DOI 10.33048/semi.2021.18.087
Zadorin N. A.
Optimization of nodes of composite quadrature formulas in the presence of a boundary layer, pp. 1201-1209.
PDF DOI 10.33048/semi.2021.18.091
Kozelkov A. S., Krutyakova O. L., Kurulin V. V., Strelets D. Yu., Shishlenin M. A.
The accuracy of numerical simulation of the acoustic wave propagations in a liquid medium based on Navier-Stokes equations, pp. 1238-1250.
PDF DOI 10.33048/semi.2021.18.094
Probability theory and mathematical statistics
Zhou Q. Q., Logachov A. V.
Moderate deviations principle for independent random variables under sublinear expectations, pp. 817-826.
PDF DOI 10.33048/semi.2021.18.060
Chebunin M.
On the accuracy of the poissonisation in the infinite occupancy scheme, pp. 1035-1045.
PDF DOI 10.33048/semi.2021.18.079
Sakhanenko A. I., Kovalevskii A. P., Shelepova A. D.
Remarks on invariance principle for one-parametric recursive residuals, pp. 1058-1074.
PDF DOI 10.33048/semi.2021.18.081
Logachov A. V., Mogulskii A. A.
The moderate deviations principle for the trajectories of compound renewal processes
on the half-line, pp. 1189-1200.
PDF DOI 10.33048/semi.2021.18.090
Differential equations, dynamical systems and optimal control
Korablina E. V., Levenshtam V. B.
Reconstruction of a high-frequency source term of the wave equation from the asymptotics of the solution. Case of the Cauchy problem, pp. 827-833.
PDF DOI 10.33048/semi.2021.18.061
Mamontov A. E., Prokudin D. A.
Local solvability of an approximate problem for one-dimensional equations of dynamics of viscous compressible heat-conducting multifluids, pp. 931-950. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.071
Zakora D. A., Forduk K. V.
A problem of normal oscillations of a system of bodies partially filled with ideal fluids under the
action of an elastic damping device, pp. 997-1014.
PDF DOI 10.33048/semi.2021.18.075
Bondar L. N., Nurmakhmatov V. S.
On solvability of the boundary value problem for one pseudohyperbolic equation, pp. 1046-1057.
PDF DOI 10.33048/semi.2021.18.080
Prokudin D. A.
On the stabilization of solutions to the initial-boundary value problem for the equations of dynamics of viscous compressible multicomponent media, pp. 1278-1285. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.097
Pertsev N. V., Loginov K. K.
Finding the parameters of exponential estimates of solutions to the Cauchy problem for some systems of linear delay differential equations, pp. 1307-1318. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.100
Tokareva M. A., Papin A. A.
On the existence of global solution of the system of equations of one-dimensional motion of a viscous liquid in a deformable viscous porous medium, pp. 1397-1422.
PDF DOI 10.33048/semi.2021.18.106
Real, complex and functional analysis
Romanov A. S.
Properties of extremal functions for p-capacity in R2, pp. 845-866. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.064
Shishkina E. L., Sitnik S. M., Jebabli I.
Application of Integral Transforms Composition Method (ITCM) to obtaining transmutations via integral transforms with Bessel functions in kernels, pp. 884-900.
PDF DOI 10.33048/semi.2021.18.067
Golubkov A. A.
Inverse problem for the Sturm-Liouville equation with piecewise entire potential and piecewise constant weight on a curve, pp. 951-974.
PDF DOI 10.33048/semi.2021.18.072
Romanov A. S.
Extremality of p-harmonic functions in R2, pp. 1015-1022. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.076
Sgibnev M. S.
On the uniqueness of the solution to the Wiener–Hopf equation with probability kernel, pp. 1146-1152.
PDF DOI 10.33048/semi.2021.18.086
Sharafutdinov V. A.
The ray transform of symmetric tensor fields with incomplete projection data, I: The kernel of the ray transform, pp. 1219-1237.
PDF DOI 10.33048/semi.2021.18.093
Greshnov A. V.
On finding the exact values of the constant in a (1,q2)-generalized triangle inequality for
Box-quasimetrics on 2-step Carnot groups with 1-dimensional center, pp. 1251-1260.
PDF DOI 10.33048/semi.2021.18.095
Akopyan R. R.
Best approximation of differentiation operators on the Sobolev class of functions analytic in a strip, pp. 1286-1298. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.098
Lipin A. E.
The problem on the measure of the union of line segments in the plane with restrictions on the set of their ends, pp. 1319-1331. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.101
Shlapunov A. A., Tarkhanov N.
An open mapping theorem for the Navier-Stokes type equations associated with the de Rham
complex over Rn, pp. 1433-1466.
PDF DOI 10.33048/semi.2021.18.108
Pleshcheva E. A.
Periodic interpolating-orthogonal bases of MRA and wavelets, pp. 1467-1474. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.109
Mathematical life
Gorodilova A. A., Tokareva N. N., Agievich S. V., Carlet C., Idrisova V. A., Kalgin K. V., Kolegov D. N., Kutsenko A. V., Mouha N., Pudovkina M. A., Udovenko A. N.
The Seventh International Olympiad in Cryptography: problems and solutions, pp. А4-А29.
PDF DOI 10.33048/semi.2021.18.063
Abrosimov N. V., Gorbounov V. G., Nechaev S. K., Singh M., Vesnin A. Yu.
4th International Conference Groups and quandles in low-dimensional topology, Tomsk, July 5-8, 2021, pp. А30-А43.
PDF DOI 10.33048/semi.2021.18.065
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