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  • Synthesis of the Radio-navigation Signals Parameters Measured by an Exploded Antenna Elements 

    Tyapkin, Valery N.; Dmitriev, Dmitry D.; Kremez, Nikolay S.; Tyapkin, Igor V.; Тяпкин, Валерий Н.; Дмитриев, Дмитрий Д.; Кремез, Николай С.; Тяпкин, Игорь В. (Сибирский федеральный университет. Siberian Federal University, 2019-12)
    Modern GNSS navigation equipment has a significant drawback — low noise immunity. To solve this problem, they are based on phased array antennas using adaptive signal processing algorithms. The final effect of such ...
  • Electromechanical Properties and Anisotropy of Acoustic Waves Characteristics in Single Crystals YAl₃(BO₃)₄ 

    Turchin, Pavel P.; Burkov, Sergey I.; Turchin, Vladimir I.; Yurkevich, Sergey V.; Sukhodaev, Pavel O.; Raikova, Irina S.; Турчин, Павел П.; Бурков, Сергей И.; Турчин, Владимир И.; Юркевич, Сергей В.; Суходаев, Павел О.; Райкова, Ирина С. (Сибирский федеральный университет. Siberian Federal University, 2019-12)
    Velocity of bulk acoustic waves in base and rotated cuts have been measured by the ultrasonic pulse-echo method and values of CE ijkl and eijk in single crystals YAl3(BO3)4 have been calculated. The value of dijk piezoelectric ...
  • Physical Basis of Quasi-optimal Seismoacoustic Pulse Generating for Geophysical Prospecting in Shallow Water and Transit Zones. Part 1. Theoretical foundations 

    Kudinov, Danil S.; Maykov, Oleg A.; Balandin, Pavel V.; Кудинов, Данил С.; Майков, Олег А.; Баландин, Павел В. (Сибирский федеральный университет. Siberian Federal University, 2019-12)
    Despite the development of alternative energy, hydrocarbon raw materials is one of the most important energy resources in the world. The discovery of new deposits today is an urgent task. Long-term prospects for the ...
  • Features of the Metallization Influence on Phase Velocities of Acoustic Waves in Piezoelectric Plates 

    Zolotova, Olga P.; Burkov, Sergey I.; Золотова, Ольга П.; Бурков, Сергей И. (Сибирский федеральный университет. Siberian Federal University, 2019-12)
    The paper presents an analysis of the influence of the load represented by two metal layers on the change in the phase velocity of the dispersion modes of the elastic Lamb and SH-waves in "Me/ZnO/Me" and "Me/AlN/Me" ...
  • Postulating the Theory of Experience and Chance 

    Vorobyev, Oleg Yu.; Воробьев, Олег Ю. (Сибирский федеральный университет. Siberian Federal University, 2019-12)
    The aim of the paper is the axiomatic justification of the theory of experience and chance, one of the dual halves of which is the Kolmogorov probability theory. The author’s main idea was the natural inclusion of ...
  • On Determinability of a Quotient Divisible Abelian Group of Rank 1 by Its Automorphism Group 

    Vildanov, Vadim K.; Timoshenko, Egor A.; Вильданов, Вадим К.; Тимошенко, Егор А. (Сибирский федеральный университет. Siberian Federal University, 2019-12)
    A criterion for determinability of a quotient divisible Abelian group of rank 1 by its automorphism group in the class of quotient divisible Abelian groups of rank 1 is considered in the paper
  • On Domains of Convergence of Multidimensional Lacunary Series 

    Tuychiev, Taxir T.; Туйчиев, Тахир Т. (Сибирский федеральный университет. Siberian Federal University, 2019-12)
    This paper is devoted to multidimensional analogues of the Fabry and P˙olya theorems on lacunary series. Domains of convergence of lacunary Hartogs series and series in homogeneous polynomials are studied in this paper. ...
  • Magnetic Behavior and Nexafs-spectroscopy of Bi₂BaNb₂₋₂ₓСo₂ₓO₉₋δ 

    Rychkova, Lubov V.; Nekipelov, Sergey V.; Makeev, Boris A.; Belyy, Vladimir A.; Beznosikov, Dmitriy S.; Zhuk, Nadezhda A.; Рычкова, Любовь В.; Некипелов, Сергей В.; Макеев, Борис А.; Белый, Владимир А.; Безносиков, Дмитрий С.; Жук, Надежда А. (Сибирский федеральный университет. Siberian Federal University, 2019-12)
    The samples of solid solutions of Bi₂BaNb₂₋₂ₓСo₂ₓO₉₋δ composition at x 0:04 were synthesized by the solid-phase method. The electron state and the nature of the exchange interactions of cobalt atoms in the samples ...
  • Fictitious Domain Method for Equilibrium Problems of the Kirchhoff-Love Plates with Nonpenetration Conditions for Known Configurations of Plate Edges 

    Lazarev, Nyurgun P.; Everstov, Vladimir V.; Romanova, Natalya A.; Лазарев, Нюргун П.; Эверстов, Владимир В.; Романова, Наталья А. (Сибирский федеральный университет. Siberian Federal University, 2019-12)
    New models are investigated in this paper, that describe equilibrium states of plates with Signorini type nonpenetration conditions. In these models, it is assumed that under appropriate loading, plates have special ...
  • Positive Fixed Points of Cubic Operators on R² and Gibbs Measures 

    Eshkabilov, Yusup Kh.; Nodirov, Shohruh D.; Эшкабилов, Юсуп Х.; Нодиров, Шохрух Д. (Сибирский федеральный университет. Siberian Federal University, 2019-12)
    One model with nearest neighbour interactions of spins with values from the set [0; 1] on the Cayley tree of order three is considered in the paper. Translation-invariant Gibbs measures for the model are studied. Results ...
  • Influence of the Thermophysical Properties of a Liquid Coolant on Characteristics of the 3D Flows with Phase Transition 

    Bekezhanova, Victoria B.; Goncharova, Olga N.; Бекежанова, Виктория Б.; Гончарова, Ольга Н. (Сибирский федеральный университет. Siberian Federal University, 2019-12)
    Regimes of the joint flows of the evaporating liquid and gas – vapor mixture induced by the action of a longitudinal temperature gradient in a three-dimensional channel of a rectangular cross-section in the terrestrial ...
  • Elementary nets (carpets) over a discrete valuation ring 

    Koibaev, Vladimir A.; Койбаев, Владимир А. (Сибирский федеральный университет. Siberian Federal University, 2019-12)
    Elementary net (carpet) σ = ( σij) is called closed (admissible) if the elementary net (carpet) group E(σ ) does not contain a new elementary transvections. The work is related to the question of V. M. Levchuk 15.46 ...
  • On Analytical Complexity of Antiderivatives 

    Stepanova, Maria A.; Степанова, Мария А. (Сибирский федеральный университет. Siberian Federal University, 2019-12)
    It is shown that the class of all functions of two variables of finite analytical complexity is not closed under integration. It also follows that the class of all functions of finite analytical complexity in the case of ...
  • On Accuracy of Approximation for the Resource Constrained Shortest Path Problem 

    Soldatenko, Aleksandr A.; Солдатенко, Александр А. (Сибирский федеральный университет. Siberian Federal University, 2019-10)
    The paper we considers the Resource Constrained Shortest Path problem (RCSP). This problem is NP- hard extension of a well-known shortest path problem in the directed graph G = (V;E). In the RCSP problem each arc e from ...
  • Hardware Architectures of the QR-Decomposition Based on a Givens Rotation Technique 

    Sokolovskiy, Alexey V.; Veisov, Evgeny A.; Tyapkin, Valery N.; Dmitriev, Dmitry D.; Соколовский, Алексей В.; Вейсов, Евгений А.; Тяпкин, Валерий Н.; Дмитриев, Дмитрий Д. (Сибирский федеральный университет. Siberian Federal University, 2019-10)
    The fixed-point hardware architecture of the QR decomposition is constrained by a several issues that leads to decrease of a compute accuracy depending on a matrix size. In this article described the hardware architectures ...
  • Elastoplastic Bending of the Console with Transverse Force 

    Senashov, Sergei I.; Savostyanova, Irina L.; Cherepanova, Olga N.; Сенашов, Сергей И.; Савостьянова, Ирина Л.; Черепанова, Ольга Н. (Сибирский федеральный университет. Siberian Federal University, 2019-10)
    In the article an elastoplastic boundary for the console being bent with transverse force when the point of force is not situated in the centroid of transverse section was built with the use of the conservation laws. In ...
  • On a Problem of Cross-Diffusion with Nonlocal Boundary Conditions 

    Rakhmonov, Zafar R.; Urunbayev, Jasur E.; Рахмонов, Зафар Р.; Урунбаев, Жасур Э. (Сибирский федеральный университет. Siberian Federal University, 2019-10)
    Condition of global existence of solution of a non-linear system of cross-diffusion with non-linear boundary conditions is studied in the paper. Critical exponents of Fujita type and critical exponents of global existence ...
  • On Distribution of Sums of Random Variables with Invariant Links and their Modeling 

    Chebotarev, Sergey V.; Чеботарев, Сергей В. (Сибирский федеральный университет. Siberian Federal University, 2019-10)
    A general form of distribution of a sum of a finite number of absolutely continuous random variables is obtained, examples of constructing and modeling sequences with averaged links (with invariant links) are considered ...
  • Classification of Hyperfunctions of Rank 2 with Respect to Membership in the Maximal Partial Ultraclones 

    Badmaev, Sergey A.; Бадмаев, Сергей А. (Сибирский федеральный университет. Siberian Federal University, 2019-10)
    In this paper, we consider the set of hyperfunctions, which is a subset of the full partial ultraclone of rank 2. For hyperfunctions, the problem of their classification with respect to membership in the the maximal ...
  • Local Automorphisms of Nil-triangular Subalgebras of Classical Lie Type Chevalley Algebras 

    Zotov, Igor N.; Зотов, Игорь Н. (Сибирский федеральный университет. Siberian Federal University, 2019-10)
    We study the problem of describing local automorphisms of nil-triangular subalgebra of the Chevalley algebra over an associative commutative ring with identity

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