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  • Data Modeling in the Solution of Difficult-to-Formalize Socio-Economic Problems 

    Simonov, Konstantin V.; Kurako, Mikhail A.; Kabanov, Alexey A.; Kapsargin, Fedor P.; Zueva, Lubov F.; Ershov, Artem V.; Grib, Svetlana N.; Симонов, Константин В.; Курако, Михил А.; Кабанов, Алексей А.; Капсаргин, Федор П.; Зуева, Любовь Ф.; Ершов, Артем В.; Гриб, Светлана Н. (Сибирский федеральный университет. Siberian Federal University, 2019-04)
    The research is devoted to the development of algorithms for data modeling in solution of difficult-to- formalize socially important tasks, which are connected with healthcare in terms of interconnections and interactions ...
  • Heterogeneous System MMPP/GI(2)/∞ with Random Customers Capacities 

    Pankratova, Ekaterina V.; Moiseeva, Svetlana P.; Farhadov, Mais P.; Moiseev, Alexandr N.; Панкратова, Екатерина В.; Моисеева, Светлана П.; Фархадов, Маис П.; Моисеев, Александр Н. (Сибирский федеральный университет. Siberian Federal University, 2019-04)
    A heterogeneous queuing system with an infinite number of servers is considered in this paper. Customers arrive in the system according to a Markov Modulated Poisson Process. The type of incoming customer is defined as ...
  • The Study of Ethanol and Water Mixing Modes in the T-shaped Micromixers 

    Lobasov, Alexander S.; Shebeleva, Anna A.; Minakov, Аndrey V.; Лобасов, Александр С.; Шебелева, Анна А.; Минаков, Андрей В. (Сибирский федеральный университет. Siberian Federal University, 2019-04)
    The study of regimes of ethanol and water mixing was carried out using numerical simulation, and the dependence of the mixing efficiency of these fluids on the Reynolds number was defined. In the course of the numerical ...
  • Logarithmic Barrier Method Via Minorant Function for Linear Programming 

    Leulmi, Assma; Leulmi, Soumia; Леулми, Ассма; Леулми, Cоумия (Сибирский федеральный университет. Siberian Federal University, 2019-04)
    We propose in this study, a new logarithmic barrier approach to solve linear programming problem. We are interested in computation of the direction by Newton’s method and of the displacement step using minorant functions ...
  • On a Quantum Logical Element Associated with the Radical of a Complex Matrix 

    Durakov, Matvey E.; Kerp, Anton S.; Lukotkin, Anton S.; Дураков, Матвей Е.; Керп, Антон С.; Лукоткин, Антон С. (Сибирский федеральный университет. Siberian Federal University, 2019-04)
    We construct new quantum logical elements realised by radicals of complex matrices. The geometry of these radicals is studied on the Reinhardt diagram
  • The Influence of Changes in the Internal Energy of the Interface on a Two-Layer Flow in a Cylinder 

    Magdenko, Evgeniy P.; Магденко, Евгений П. (Сибирский федеральный университет. Siberian Federal University, 2019-04)
    The exact solution of the equations of the creeping flow model with the Himentsa type velocity field is considered in this paper. The solution describes thermocapillary convection in layers. It is interpreted as the ...
  • Symmetries of Differential Ideals and Differential Equations 

    Kaptsov, Oleg V.; Капцов, Олег В. (Сибирский федеральный университет. Siberian Federal University, 2019-04)
    The paper deals with differential rings and partial differential equations with coefficients in some algebra. We introduce symmetries and the conservation laws to the differential ideal of an arbitrary differential ring. ...
  • The Variety of Nilpotent Tortkara Algebras 

    Gorshkov, Ilya B.; Kaygorodov, Ivan; Kytmanov, Alexey A.; Salim, Mohamed A.; Горшков, Илья Б.; Кайгородов, Иван; Кытманов, Алексей А.; Салим, Мохамед А. (Сибирский федеральный университет. Siberian Federal University, 2019-04)
    We give algebraic and geometric classification of all 5-dimensional nilpotent Tortkara algebras over complex field
  • Theoretical and Numerical Result for Linear Optimization Problem Based on a New Kernel Function 

    Derbal, Louiza; Kebbiche, Zakia; Дербал, Луиза; Кеббиш, Закия (Сибирский федеральный университет. Siberian Federal University, 2019-04)
    The propose of this paper is to improve the complexity results of primal-dual interior-point methods for linear optimization (LO) problem. We define a new proximity function for (LO) by a new kernel function wich is a ...
  • Solution of Non-stationary Motion of Binary Mixture by Laplace Transformation 

    Darabi, Nemat B.; Дараби, Немат Б. (Сибирский федеральный университет. Siberian Federal University, 2019-04)
    In this paper is estimated a special solution for solving thermal diffusion equations, that describe motion of binary mixture in a flat layer. If Reynolds number is small, these equations are reduced to some easier inverse ...
  • Limit Cycles for a Class of Polynomial Differential Systems Via Averaging Theory 

    Bendjeddou, Ahmed; Berbache, Aziza; Kina, Abdelkrim; Бенджедду, Ахмед; Бербаке, Азиза; Кина, Абделькрим (Сибирский федеральный университет. Siberian Federal University, 2019-04)
    In this paper, we consider the limit cycles of a class of polynomial differential systems of the form { x_ = y "(g11 (x) y2 +1 + f11 (x) y2 ) "2(g12 (x) y2 +1 + f12 (x) y2 ); y_ = x "(g21 (x) y2 +1 + f21 (x) y2) "2(g22 ...
  • Symmetry Analysis of Ideal Fluid Equations in Terms of Trajectories and Weber’s Potential 

    Andreev, Victor K.; Krasnova, Daria A.; Андреев, Виктор К.; Краснова, Дарья А. (Сибирский федеральный университет. Siberian Federal University, 2019-04)
    The 2D perfect fluid motions equations in Lagrangian coordinates are considered. If body forces are potential one, then there is the general integral called Weber’s integral and the resulting system includes initial data ...
  • On a Transversality Condition for One Variation Problem with Moving Boundary 

    Gladkov, Sergey O.; Гладков, Сергей О. (Сибирский федеральный университет. Siberian Federal University, 2019-02)
    We give an algorithm to obtain a transversality condition for one variation problem with a moving boundary when a functional contains derivatives of order n of functions of one variable. A mathematical justification of ...
  • The Critical Curves of a Doubly Nonlinear Parabolic Equation in Non-divergent form with a Source and Nonlinear Boundary Flux 

    Aripov, Mersaid M.; Paimbekov, Jakhonogir R.; Арипов, Мирсаид М.; Раимбеков, Жахонгир Р. (Сибирский федеральный университет. Siberian Federal University, 2019-02)
    The critical curves of a doubly nonlinear parabolic equation in non-divergent form with a source and nonlinear boundary flux are considered in the paper. The critical global existence curve and the critical Fujita curve ...
  • Magnetic Properties of Fe₁₋ₓCoₓSi Single Crystals at Low Co Impurity Concentrations 

    Yurkin, Gleb Yu.; Patrin, Gennady S.; Yarikov, Stanislav A.; Юркин, Глеб Ю.; Патрин, Геннадий С.; Яриков, Станислав А. (Сибирский федеральный университет. Siberian Federal University, 2019-02)
    Magnetostatic properties of FeSi and Fe0;98Co0;02Si single crystals have been studied. It has been found that the temperature and field dependences of the magnetization of monocrystal FeSi are strongly affected by ...
  • Opto-acoustic and Acoustic Microscopy Studies of Microstructure, Elasticity and Defects in B₄C/C₆₀ and c-BN/C₆₀ Nanocomposites 

    Prokhorov, Vyacheslav M.; Morokov, Egor S.; Ovsyannikov, Danila А.; Прохоров, Вячеслав М.; Мороков, Егор С.; Овсянников, Данил А. (Сибирский федеральный университет. Siberian Federal University, 2019-02)
    Carbon-ceramic nanocomposites based on boron carbide with fullerene C60 (B4C/C60) and cubic boron nitride with C60 (c-BN/C60) were prepared by a high-energy ball milled pre-treatment of the initial mixture of components ...
  • Extensions of Boolean Rings and Nearrings 

    Nayak, Hamsa; Kuncham, Syam P.; Kedukodi, Babushri S.; Наяк, Хамса; Кунчам, Сям П.; Кедукоди, Бабушри С. (Сибирский федеральный университет. Siberian Federal University, 2019-02)
    In this paper, we introduce the notions of left (right) Boolean rings and nearrings. We give examples to show that left (right) Boolean rings are not commutative in general. We obtain interrelations among these algebraic ...
  • Navier-Stokes Equations for Elliptic Complexes 

    Mera, Azal; Shlapunov, Alexander A.; Tarkhanov, Nikolai; Мера, Азал; Шлапунов, Александр А.; Тарханов, Николай (Сибирский федеральный университет. Siberian Federal University, 2019-02)
    We continue our study of invariant forms of the classical equations of mathematical physics, such as the Maxwell equations or the Lam´e system, on manifold with boundary. To this end we interpret them in terms of the de ...
  • Pseudospectral Methods for Nonlinear Pendulum Equations 

    Anh Nhat, Le; Ань Ньат, Лe (Сибирский федеральный университет. Siberian Federal University, 2019-02)
    The article searched on mathematics and numerical solutions for the nonlinear pendulum (Chaotic pen- dulum). The numerical solution that was used for our research suitably the pseudospectral methods. With these equations, ...
  • One Proof of the Fundamental Theorem of Algebra (of Polynomials) 

    Khodos, Olga V.; Ходос, Ольга В. (Сибирский федеральный университет. Siberian Federal University, 2019-02)
    One proof of the fundamental theorem of algebra (of polynomials) is given, based on the theorem on the number of zeros of an entire function

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