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
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
HKSS-Completeness of modal algebras, pp. 923-930.
PDF DOI 10.33048/semi.2021.18.070
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
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
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
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
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
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
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