Vol. 20 No. 2 (2023): Том 20, №2, 2023

Published: 2024-01-28

Mathematical logic, algebra and number theory

One corollary of description of finite groups without elements of order 6

Анатолий Кондратьев
On the existence of nef-partitions for smooth well-formed Fano weighted complete intersections

Михаил Овчаренко
Алгебры бинарных формул для $\aleph_0$-категоричных слабо циклически минимальных теорий: кусочно монотонный случай

Бейбут Шайыкович Кулпешов
Constant expansion of theories and the number of countable models

Olzhas Umbetbayev, Bektur Baizhanov
. On equivalence classes of matrices over a finite field of odd characteristic On equivalence classes of matrices

Евгений Владимирович Журавлев
Simple Novikov - Poisson algebras

Anton Zakharov
On submaximal ultraclones of self-dual hyperfunctions of rank 2

Иван Шаранхаев
О ПОЗИТИВНОЙ ПОЛНОТЕ И ПОЗИТИВНО ЗАМКНУТЫХ МНОЖЕСТВАХ МУЛЬТИФУНКЦИЙ РАНГА 2

Иван Шаранхаев
Quasi-definite axial algebras of Jordan type half Quasi-definite axial algebras of Jordan type half

Vsevolod Gubarev, Илья Горшков
Linear Step-like logic of knowledge LTK.sl

Степан Башмаков, Tatyana Zvereva
Binary (−1, 1)-bimodules over semisimple algebras

Сергей Валентинович Пчелинцев
Multivalued groups and Newton polyhedron

Tatyana, Valeriy Bardakov
Complexes of relational structures and their properties

Ivan Emelianenkov
Simple graphs that are not equationally noetherian

Александр Викторович Трейер, Иван Михайлович Бучинский
FINITE SIMPLE GROUPS WITH TWO MAXIMAL SUBGROUPS OF COPRIME ORDERS

Наталья Владимировна Маслова
SEVEN-DIMENSIONAL REAL AND COMPLEX UNSOLVABLE LIE ALGEBRAS

Natalya Mozhey
Equationally Noetherian varieties of semigroups and B.Plotkin`s problem Equationally Noetherian varieties of semigroups and B.Plotkin`s problem

Artem Shevlyakov
Spherical orders, properties and countable spectra of their theories

Сергей Владимирович Судоплатов, Beibut Sh. Kulpeshov
On the Computability of Ordered Fields On the Computability of Ordered Fields

Margarita Vladimirovna Korovina
Minimality conditions, topologies, and ranks for spherically ordered theories

Сергей Владимирович Судоплатов
Effectively infinite classes of numberings and fixed point theorems Effectively infinite classes of numberings

Марат Файзрахманов
Finite groups with formational subnormal primary subgroups of bounded exponent

Victor Monakhov, Irina Sokhor
On weakly $\mathrm{tcc}$-subgroups of finite groups

Александр Трофимук

Computational mathematics

Mathematical model of economic dynamics in an epidemic

Никита Сергеевич Новиков
On the reconstruction of the absorption coefficient for the 2D acoustic system On the reconstruction of the absorption coefficient for the 2D acoustic system

Максим Шишленин
Application a Taylor series to approximate a function with large gradients

Alexander Zadorin
Floating wave power plantphase control

Андрей Дарьенков, Максим Желонкин, Andrey Kurkin, Александр Плехов
Локализация поверхностей разрыва коэффициента рассеяния по временно-угловому распределению плотности потока излучения

Игорь Васильевич Прохоров
About mathematical modeling of COVID-19

Olga Krivorotko, Kabanikhin Sergey
Discretization of Boltzmann equation using finite-volume method and explicit-implicit schemes Discretization of Boltzmann equation

Константин Волков
Performance preserving equivalence for stochastic process algebra dtsdPBC

Игорь Тарасюк
On the convergence of locally one-dimensional schemes for the differential equation in partial derivatives of fractional orders in a multidimensional domain

Александр Казбекович Баззаев

Discrete mathematics and mathematical cybernetics

Edge 4-critical Koester graph of order 28

Andrey Dobrynin
Linear and additive perfect codes over skew fields and quasi skew fields

Сергей Малюгин
$L_{\infty}$ norm minimization for nowhere-zero integer eigenvectors of the block graphs of Steiner triple systems and Johnson graphs

Иван Юрьевич Могильных, Константин Воробьев, Евгений Беспалов
Multidimensional threshold matrices and extremal matrices of order 2

Анна Александровна Тараненко
On the structure of one class of perfect $\Pi$-partitions

Константин Рычков
Approximation algorithms for 2-PSP-2W-max and 2-CC-2W-max

Алексей Николаевич Глебов, Sophya Lylova, Surena Toktokhoeva
Feynman Checkers with Absorption

Михаил Дмитриев
Test fragments of perfect colorings of circulant graphs

Mariya Lisitsyna, Sergey Vladimirovich Avgustinovich

Differential equations, dynamical systems and optimal control

A Radon type transform related to the Euler equations for ideal fluid

Владимир Альтафович Шарафутдинов
Spectrum of a problem about the flow of a polymeric viscoelastic fluid in a cylindrical channel (Vinogradov-Pokrovski model)

Дмитрий Ткачев, Элина Бибердорф
The exact solutions for the flow of liquid polymer with variable discharge in the flat channel with permeable walls The exact solutions for the flow of liquid polymer with variable discharge in the flat channel with permeable walls

Гиёсиддин Шукуров
Stationary solutions of a boundary value problem for equations of barotropic flow of multicomponent media

Alexander E. Mamontov, Dmitriy Prokudin
Solvability of a regularized boundary value problem of chaotic dynamics of a polymer molecule

Victor Starovoitov
INTEGRATION OF THE LOADED MKDV-SINE-GORDON EQUATION WITH A SOURCE

Umid Hoitmetov
Homogenized acoustic equations for a layered medium consisting of a viscoelastic material and a viscous compressible fluid Homogenized acoustic equations for a layered medium

Vladlena Shumilova
Resonance in oscillators with bounded nonlinearities.

Efim Pelinovsky, Иоанн Мельников
Flows of Quasi-classical Trajectories and Asymptotics Solutions of the Schrödinger Equation

Vladislav Khablov
A variational inequality for the Sturm-Liouville problem with discontinuous nonlinearity

Дмитрий Потапов
The problem on small motions of a mixture of viscous compressible fluids

Dmitry Zakora
Алгебраические овалы и рациональные интегралы систем типа Дарбу

Никита Сергеевич Новиков; Евгений Волокитин

Real, complex and functional analysis

Laguerre Expansions of C−regularized semigroups Functions

Abdelkhalek El amrani
Multivalued quasim\"{o}bius property and bounded turning

Николай Владимирович, Dkflbckfd Dfcbkmtdbx
Gaussian semigroups of operators in the space of Borel functions on a separable Hilbert space

Oleg Evgenievich
Multidimensional Hermite interpolation

Matvey Durakov, Evgeniy Leinartas, August Tsikh
Stability condition and Riesz bounds for exponential splines

Евгения Мищенко
An inverse spectral problem for an antisymmetric tridiagonal matrix

Aleksey

Probability theory and mathematical statistics

Исследование характеристик процедуры кумулятивных сумм в задаче скорейшего обнаружения разладки

Vladimir Lotov
О распределении числа пересечений полосы траекториями случайного процесса с независимыми приращениями

Vladimir Lotov
Limit theorems for forward and backward processes of numbers of non-empty urns in infinite urn schemes

Artyom Kovalevskii
Stability and instability of a random multiple access system with an energy harvesting and self-discharge mechanism

Alexandr Vadimovich, Mikhail Georgievich
On functional limit theorems for branching processes with dependent immigration

Саъдилло Шарипов
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Mathematical life

A.D. Taimanov's theorems

Искандер Тайманов