Sib. Èlektron. Mat. Izv., 2021, Volume 18, Issue 2

Sibirskie Èlektronnye Matematicheskie Izvestiya [Siberian Electronic Mathematical Reports]

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2021, Volume 18, Issue 2

Mathematical logic, algebra and number theory
	Cohomology for the Lie algebra of type $A_2$ over a field of characteristic $2$ Sh. Sh. Ibraev, B. E. Turbayev	729–739
	When a (dual-)Baer module is a direct sum of (co-)prime modules M. R. Vedadi, N. Ghaedan	782–791
	An example of a simple double Lie algebra V. Gubarev	834–844
	On spaces of functional clones A. G. Pinus	901–904
	Kleene star, subexponentials without contraction, and infinite computations S. L. Kuznetsov	905–922
	HKSS-completeness of modal algebras N. Bazhenov	923–930
	On read-once multifunctions in some base I. K. Sharankhaev	1098–1104
	On facets of the Newton polytope for the discriminant of the polynomial system I. A. Antipova, E. A. Kleshkova	1180–1188
	On some intervals in the lattice of ultraclones of rank $2$ S. A. Badmaev, A. E. Dugarov, I. V. Fomina, I. K. Sharankhaev	1210–1218
	On the join of Cross varieties of algebras I. M. Isaev	1299–1306
	Extensions of the category $S-Act$ E. E. Skurikhin, A. A. Stepanova, A. G. Sukhonos	1332–1357
	On centers of soluble graphs L. S. Kazarin, V. N. Tutanov	1517–1530
	On compressed zero-divisor graphs of finite commutative local rings E. V. Zhuravlev, O. A. Filina	1531–1555
	Characterization of groups $E_6(3)$ and ${^2}E_6(3)$ by Gruenberg–Kegel graph A. P. Khramova, N. V. Maslova, V. V. Panshin, A. M. Staroletov	1651–1656
	Special classes of positive preorders S. A. Badaev, B. S. Kalmurzayev, N. K. Mukash, A. A. Khamitova	1657–1666
	The sum of orders of elements in nonabelian groups of odd order A. A. Buturlakin, A. F. Tereshchenko	1698–1704
	On almost Engel $L$-varieties of vector spaces A. V. Kislitsin	1705–1713
	Locally free subgroups of one-relator groups A. I. Budkin	1757–1770

Probability theory and mathematical statistics
	Moderate deviations principle for independent random variables under sublinear expectations Q. Q. Zhou, A. V. Logachov	817–826
	On the accuracy of the poissonisation in the infinite occupancy scheme M. Chebunin	1035–1045
	Remarks on invariance principle for one-parametric recursive residuals A. Sakhanenko, A. Kovalevskii, A. Shelepova	1058–1074
	The moderate deviations principle for the trajectories of compound renewal processes on the half – line A. V. Logachov, A. A. Mogulskii	1189–1200
	Asymptotics of sums of regression residuals under multiple ordering of regressors M. G. Chebunin, A. P. Kovalevskii	1482–1492
	Harris ergodicity of a Split Transmission Control Protocol S. G. Foss, M. G. Chebunin	1493–1505
	On representations and simulation of conditioned random walks on integer lattices A. Sakhanenko, S. Foss	1556–1571
	On the asymptotics of the probability to stay above a non-increasing boundary for a non-homogeneous compound renewal process A. D. Shelepova, A. I. Sakhanenko	1667–1688

Geometry and topology
	New proofs of infinitesimal rigidity of convex polyhedra and convex surfaces of revolution I. Kh. Sabitov	740–743
	On the uniqueness of $ \mathcal{I}$-limits of sequences A. Blali, A. El Amrani, R. A. Hassani, A. Razouki	744–757
	On PL embeddings of a 2-sphere in the 4-dimensional Euclidean space D. V. Bolotov	867–883
	On geometrical properties of continuous mappings which preserve orientation of simplices V. A. Klyachin, N. A. Chеbanеnko	985–996
	On metrics admitting a discontinuum set of non-congruent immersions in $\mathbb R^3$ I. Kh. Sabitov	1023–1026
	The volume of a spherical antiprism with $S_{2n}$ symmetry N. Abrosimov, B. Vuong	1165–1179
	Quandles, quasoids and projections F. G. Korablev	1261–1277
	On semi-implicit numerical method for surface diffusion equation for triangulated surfaces Yu. D. Efremenko	1367–1389
	Spatial graphs and their isotopy classification V. M. Nezhinskij	1390–1396
	Continuous bijections of Borel subsets of the Sorgenfrey line on compact spaces V. R. Smolin	1735–1741

Discrete mathematics and mathematical cybernetics
	On a class of vertex-transitive distance-regular covers of complete graphs L. Yu. Tsiovkina	758–781
	Path partitioning planar graphs with restrictions on short cycles A. N. Glebov	975–984
	Vertex-vertex color energy of a graph S. Udupa, R. S. Bhat	1027–1034
	Distance-regular Terwilliger graphs with intersection arrays $\{50,42,1;1,2,50\}$ and $\{50,42,9;1,2,42\}$ do not exist A. A. Makhnev, M. S. Nirova	1075–1082
	Minimum weight bases for quaternary Reed – Muller codes F. I. Solov'eva	1358–1366
	Enumeration of strictly Deza graphs with at most $21$ vertices S. V. Goryainov, D. I. Panasenko, L. V. Shalaginov	1423–1432
	Tight description of faces in torus triangulations with minimum degree 5 O. V. Borodin, A. O. Ivanova	1475–1481
	Error-tolerant ZZW-construction Yu. V. Kosolapov, F. S. Pevnev	1506–1516
	Divisible design graphs with parameters $(4n,n+2,n-2,2,4,n)$ and $(4n,3n-2,3n-6,2n-2,4,n)$ L. Shalaginov	1742–1756

Differentical equations, dynamical systems and optimal control
	Reconstruction of a high-frequency source term of the wave equation from the asymptotics of the solution. Case of the Cauchy problem E. V. Korablina, V. B. Levenshtam	827–833
	Local solvability of an approximate problem for one-dimensional equations of dynamics of viscous compressible heat-conducting multifluids A. E. Mamontov, D. A. Prokudin	931–950
	A problem of normal oscillations of a system of bodies partially filled with ideal fluids under the action of an elastic damping device D. A. Zakora, K. V. Forduk	997–1014
	On solvability of the boundary value problem for one pseudohyperbolic equation L. N. Bondar, V. Nurmakhmatov	1046–1057
	On the stabilization of solutions to the initial-boundary value problem for the equations of dynamics of viscous compressible multicomponent media D. A. Prokudin	1278–1285
	Finding the parameters of exponential estimates of solutions to the Cauchy problem for some systems of linear delay differential equations N. V. Pertsev, K. K. Loginov	1307–1318
	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 M. A. Tokareva, A. A. Papin	1397–1422
	Positive solutions of $p$-Laplacian fractional differential equations with fractional derivative boundary condition F. Haddouchi	1596–1614
	Invariant solutions of the gas dynamics equations from 4-parameter three-dimensional subalgebras containing all translations in space and pressure translation D. T. Siraeva	1639–1650
	Estimates for solutions to one class of nonlinear nonautonomous systems with time-varying concentrated and distributed delays I. I. Matveeva	1689–1697
	Solvability of a boundary value problem of chaotic dynamics of polymer molecule in the case of bounded interaction potential V. N. Starovoitov	1714–1719

Computational mathematics
	Operator-orthoregressive methods for identifying coefficients of linear difference equations A. A. Lomov	792–804
	An application of the Chebyshev collocation method for the calculation of a mass flux in a long concentric annular channel O. V. Germider, V. N. Popov	805–816
	On the question of good conditionality of unsaturated quadrature formulas V. N. Belykh	1083–1097
	Performance evaluation in stochastic process algebra dtsdPBC I. V. Tarasyuk	1105–1145
	Iteratively regularized Gauss–Newton method in the inverse problem of ionospheric radiosonding M. Yu. Kokurin, A. E. Nedopekin	1153–1164
	Optimization of nodes of composite quadrature formulas in the presence of a boundary layer N. A. Zadorin	1201–1209
	The accuracy of numerical simulation of the acoustic wave propagations in a liquid medium based on Navier-Stokes equations A. S. Kozelkov, O. L. Krutyakova, V. V. Kurulin, D. Yu. Strelets, M. A. Shishlenin	1238–1250

Real, complex and functional analysis
	Properties of extremal functions for $p$-capacity in $R^2$ A. S. Romanov	845–866
	Application of integral transforms composition method (ITCM) to obtaining transmutations via integral transforms with Bessel functions in kernels E. L. Shishkina, S. M. Sitnik, I. Jebabli	884–900
	Inverse problem for the Sturm–Liouville equation with piecewise entire potential and piecewise constant weight on a curve A. A. Golubkov	951–974
	Extremality of $p$-harmonic functions in $R^2$ A. S. Romanov	1015–1022
	On the uniqueness of the solution to the Wiener–Hopf equation with probability kernel M. S. Sgibnev	1146–1152
	The ray transform of symmetric tensor fields with incomplete projection data, I: The kernel of the ray transform V. A. Sharafutdinov	1219–1237
	On finding the exact values of the constant in a $(1,q_2)$-generalized triangle inequality for Box-quasimetrics on $2$-step Carnot groups with $1$-dimensional center A. V. Greshnov	1251–1260
	Best approximation of differentiation operators on the Sobolev class of functions analytic in a strip R. R. Akopyan	1286–1298
	The problem on the measure of the union of line segments in the plane with restrictions on the set of their ends A. E. Lipin	1319–1331
	An open mapping theorem for the Navier-Stokes type equations associated with the de Rham complex over ${\mathbb R}^n$ A. A. Shlapunov, N. Tarkhanov	1433–1466
	Periodic interpolating-orthogonal bases of MRA and wavelets E. A. Pleshcheva	1467–1474
	Singular value decomposition of a normal Radon transform operator acting on 3D symmetric 2-tensor fields A. P. Polyakova	1572–1595
	Some questions on the relationship of the factorization problem of matrix functions and the truncated Wiener—Hopf equation in the Wiener algebra A. F. Voronin	1615–1624
	Reduction of the Kolmogorov inequality for a non negative part of the second derivative on the real line to the inequality for convex functions on an interval N. S. Payuchenko	1625–1638
	The length and area principle for a function on an abstract surface over a domain of a Carnot group M. V. Tryamkin	1720–1734

Mathematical life
	The Seventh International Olympiad in Cryptography: problems and solutions A. A. Gorodilova, N. N. Tokareva, S. V. Agievich, C. Carlet, V. A. Idrisova, K. V. Kalgin, D. N. Kolegov, A. V. Kutsenko, N. Mouha, M. A. Pudovkina, A. N. Udovenko	А.4–А.29
	4th International Conference Groups and quandles in low-dimensional topology, Tomsk, July 5 – 8, 2021 N. V. Abrosimov, V. G. Gorbounov, S. K. Nechaev, M. Singh, A. Yu. Vesnin	А.30–А.43
	The Conference "Dynamics in Siberia", Novosibirsk, March 1 – 6, 2021 I. A. Dynnikov, A. E. Mironov, I. A. Taimanov, V. A. Timorin, A. Yu. Vesnin	А.44–А.89
	In memory of Yuri Reshetnyak S. S. Kutateladze	А.90–А.92
	International S.B. Stechkin's Workshop-Conference on Function Theory dedicated to the 85th anniversary of Yu.N. Subbotin and N.I. Chernykh V. V. Arestov, V. I. Berdyshev, A. G. Babenko, Yu. S. Volkov, M. V. Deikalova	А.93–А.108

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