Collections in this community

Recent Submissions

  • Global in Space Regularity Results for the Heat Equation with Robin-Neumann Type Boundary Conditions in Time-varying Domains 

    Boudjeriou, Tahir; Kheloufi, Arezki; Буджериу, Тахир; Хелуфи, Арезки (Сибирский федеральный университет. Siberian Federal University, 2019-06)
    This article deals with the heat equation @tu @2x u = f in D; D = {(t; x) 2 R2 : a < t < b; (t) < x < +1} with the function satisfying some conditions and the problem is supplemented with boundary conditions of ...
  • A Class of Local Linear Estimators with Functional Data 

    Leulmi, Sara; Messaci, Fatiha; Леулми, Сара; Мессачи, Фатиха (Сибирский федеральный университет. Siberian Federal University, 2019-06)
    We introduce a local linear nonparametric estimation for the generalized regression function of a scalar response variable given a random variable taking values in a semi metric space. We establish a rate of uniform ...
  • Ill-posed Boundary-value Problem for a System of Partial Differential Equations with Two Degenerate Lines 

    Fayazov, Kudratillo S.; Khudayberganov, Yashin K.; Фаязов, Кудратилло С.; Худайберганов, Яшин К. (Сибирский федеральный университет. Siberian Federal University, 2019-06)
    This paper is devoted to the investigation of ill-posed boundary-value problem for system of parabolic type equations with changing time direction with two degenerate lines. The problem under consideration is ill-posed ...
  • Theoretical Study of Mechanical, Elastic and Phonon Frequency Spectrum Properties for GaAs at High Pressure 

    AL-Saqa, Raed H.; AL-Taie, Siham J.; Аль-Сака, Раед Х.; Дж. Аль-Тайе (Сибирский федеральный университет. Siberian Federal University, 2019-06)
    The calculations for variations of bulk modulus (B), compression volume (Vp Vo ); lattice constant and phonon frequency spectrum (pfs) under high pressure up to 17 GPa at room temperature has been carried out. Three ...
  • The Highest Dimension of Commutative Subalgebras in Chevalley Algebras 

    Suleimanova, Galina S.; Сулейманова, Галина С. (Сибирский федеральный университет. Siberian Federal University, 2019-06)
    Let L (K) denotes a Chevalley algebra with the root system over a field K. In 1945 A. I. Mal’cev investigated the problem of describing abelian subgroups of highest dimension in complex simple Lie groups. He solved this ...
  • Group Analysis of Equations of Hydrostatic Model of Viscous Fluid 

    Rodionov, Alexander A.; Krasnova, Daria A.; Родионов, Александр А.; Краснова, Дарья А. (Сибирский федеральный университет. Siberian Federal University, 2019-06)
    The group properties of three-dimensional equations of hydrostatic model of viscous fluid are studied. Several exact solutions are presented. The free surface of fluid and pressure on this surface are deter- mined
  • An Elementary Algorithm for Solving a Diophantine Equation of Degree Fourth with Runge’s Condition 

    Osipov, Nikolai N.; Medvedeva, Maria I.; Осипов, Николай Н.; Медведева, Мария И. (Сибирский федеральный университет. Siberian Federal University, 2019-06)
    We propose an elementary algorithm for solving the diophantine equation (p(x; y) + a1x + b1y)(p(x; y) + a2x + b2y)- dp(x; y)- a3x - b3y -c = 0 ( *) of degree fourth, where p(x; y) denotes an irreducible quadratic form ...
  • On Decomposition of a Binary Context Without Losing Formal Concepts 

    Mongush, Choduraa M.; Bykova, Valentina V.; Монгуш, Чодураа М.; Быкова, Валентина В. (Сибирский федеральный университет. Siberian Federal University, 2019-06)
    The #P-complete problem of finding all the formal concepts of a given context and the decomposition method for its solving are investigated. As parts of the decomposition is proposed to use fragments of the initial ...
  • Carleman Formula for the Maxwell Equation in a Cap Type Domain 

    Makhmudov, Komil O.; Махмудов, Комил О. (Сибирский федеральный университет. Siberian Federal University, 2019-06)
    We consider a Cauchy problem for the Maxwell equations in a cap type domain X in R3. We find reasonable solvability conditions and a Carleman formula for its solution
  • A Class of Quintic Kolmogorov Systems with Explicit Non-algebraic Limit Cycle 

    Bendjeddou, Ahmed; Grazem, Mohamed; Бенджедду, Ахмед; Грэм, Мохамед (Сибирский федеральный университет. Siberian Federal University, 2019-06)
    Various physical, ecological, economic, etc phenomena are governed by planar differential systems. Sub- sequently, several research studies are interested in the study of limit cycles because of their interest in the ...
  • A Sufficient Condition for Absolute Continuity of Conjugations between Interval Exchange Maps 

    Begmatov, Abdumajid S.; Бегматов, Абдумажид С. (Сибирский федеральный университет. Siberian Federal University, 2019-06)
    A class of topological equivalent generalized interval exchange maps of genus one and of the same bounded combinatorics is considered in the paper. A sufficient condition for absolute continuity of the conjugation between ...
  • Two-dimensional Plane Thermocapillary Flow of Two Immiscible Liquids 

    Lemeshkova, Elena N.; Лемешкова, Елена Н. (Сибирский федеральный университет. Siberian Federal University, 2019-06)
    The problem of two-dimensional stationary flow of two immiscible liquids in a plane channel with rigid walls is considered. A temperature distribution is specified on one of the walls and another wall is heat- insulated. ...
  • On Uniqueness and Continuous Dependence on the Initial Data of the Solution of a System of Two Loaded Parabolic Equations with the Cauchy Data 

    Frolenkov, Igor V.; Antipina, Irina S.; Terskikh, Natalya M.; Фроленков, Игорь В.; Антипина, Ирина С.; Терских, Наталья М. (Сибирский федеральный университет. Siberian Federal University, 2019-06)
    We study the Cauchy problem for the system of one-dimensional loaded parabolic equations. Uniqueness and continuous dependence of solutions on the initial data in the class of smooth bounded functions is proved
  • Vector Bundle of Prym Differentials over Teichm¨uller Spaces of Surfaces with Punctures 

    Chueshev, Alexander V.; Chueshev, Victor V.; Чуешев, Александр В.; Чуешев, Виктор В. (Сибирский федеральный университет. Siberian Federal University, 2019-06)
    In this paper we study multiplicative meromorphic functions and differentials on Riemann surfaces of finite type. We prove an analog of P. Appell’s formula on decomposition of multiplicative functions with poles of ...
  • 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 ...

View more