Recent Submissions

  • On Centralizers of the Graph Automorphisms of Niltriangular Subalgebras of Chevalley Algebras 

    Levchuk, Vladimir M.; Suleimanova, Galina S.; Левчук, Владимир М.; Сулейманова, Галина С. (Siberian Federal University. Сибирский федеральный университет, 2022-10)
    Graph automorphisms of a Chevalley group correspond to each type of reduced indecompos- able root system , which Coxeter graph has a non-trivial symmetry. It is well-known, that a Chevalley algebra and its niltriangular ...
  • Local Asymptotic Normality of Statistical Experiments in an Inhomogeneous Competing Risks Model 

    Abdushukurov, Abdurahim A.; Nurmukhamedova, Nargiza S.; Абдушукуров, Абдурахим А.; Нурмухамедова, Наргиза С. (Сибирский федеральный университет. Siberian Federal University, 2022-10)
    In this paper we consider an inhomogeneous competing risks model. For the likelihood ratio statistics (LRS), proved the theorem on the locally asymptotic normality of statistical experiment
  • Sharply Doubly Transitive Groups with Saturation Conditions 

    Sozutov, Anatoliy I.; Durakov, Evgeny B.; Созутов, Анатолий И.; Дураков, Евгений Б. (Сибирский федеральный университет. Siberian Federal University, 2022-10)
    A number of conditions were found under which a sharply doubly transitive permutation group has an abelian normal divider
  • Maximal Abelian Ideals and Automorphisms of Nonfinitary Nil-triangular Algebras 

    Sotnikova, Elena A.; Сотникова, Елена А. (Сибирский федеральный университет. Siberian Federal University, 2022-10)
    We study mutually connected automorphisms and abelian ideals of nonfinitary nil-triangular algebras
  • Unsteady Flow of two Binary Mixtures in a Cylindrical Capillary with Changes in the Internal Energy of the Interface 

    Sobachkina, Natalya L.; Собачкина, Наталья Л. (Сибирский федеральный университет. Siberian Federal University, 2022-10)
    The problem of two-dimensional unsteady flow of two immiscible incompressible binary mixtures in a cylindrical capillary in the absence of mass forces is studied. The mixtures are contacted through a common interface on ...
  • Second Hankel Determinant for Bi-univalent Functions Associated with q-differential Operator 

    Shrigan, Mallikarjun G.; Шриган, Малликарджун Г. (Сибирский федеральный университет. Siberian Federal University, 2022-10)
    The objective of this paper is to obtain an upper bound to the second Hankel determinant denoted by H2(2) for the class S q ( ) of bi-univalent functions using q-differential operator
  • Computational Modeling of the Electromagnetic Field Distribution of a Horizontal Grounded Antenna in Rock for TTE Communication 

    Shaidurov, Georgy Ya.; Kokhonkova, Ekaterina A.; Шайдуров, Георгий Я.; Кохонькова, Екатерина А. (Сибирский федеральный университет. Siberian Federal University, 2022-10)
    The article investigates the spatial distribution of the electromagnetic (EM) field of an an- tenna in the form of a long grounded cable in a rock with the corresponding electrophysical parameters. The frequency dependences ...
  • Dehn Functions and the Space of Marked Groups 

    Shahryari, Mohammad; Шахриари, Мохаммед (Сибирский федеральный университет. Siberian Federal University, 2022-10)
    In the space of marked group, we suppose that a sequence (Gi;Xi) converges to (G;X), where G is finitely presented. We obtain an inequality which connects Dehn functions of Gis and G
  • Two-dimensional Inverse Problem for an Integro-differential Equation of Hyperbolic Type 

    Safarov, Jurabek Sh.; Сафаров, Журабек Ш. (Сибирский федеральный университет. Siberian Federal University, 2022-10)
    A multidimensional inverse problem of determining the kernel of the integral term of an integro-differential wave equation is considered. In the direct problem it is required to find the dis- placement function from the ...
  • Irreducible Carpets of Additive Subgroups of Type G2 Over a Field of Characteristic 0 

    Nuzhin, Yakov N.; Troyanskaya, Elizaveta N.; Нужин, Яков Н.; Троянская, Елизавета Н. (Сибирский федеральный университет. Siberian Federal University, 2022-10)
    It is proved that any irreducible carpet of type G2 over a field F of characteristic 0, at least one additive subgroup of which is an R-module, where F is an algebraic extension of the field R, up to conjugation by a ...
  • Uniqueness of an Interpolating Entire Function with Some Properties 

    Mkrtchyan, Aleksandr J.; Мкртчян, Александр Д. (Сибирский федеральный университет. Siberian Federal University, 2022-10)
    We consider the problem of power series analytic continuation by coefficients interpolation by entire or meromorphic functions. We prove uniqueness of an interpolating function with some properties. Also, under assumptions ...
  • Tutorial on Rational Rotation C*-Algebras 

    Lawton, Wayne M.; Лоутон, Уэйн М. (Сибирский федеральный университет. Siberian Federal University, 2022-10)
    The rotation algebra A is the universal C -algebra generated by unitary operators U; V satisfying the commutation relation UV = !V U where ! = e2 i : They are rational if = p=q with 1 6 p 6 q1; othewise irrational. ...
  • Some Solutions of the Euler System of an Inviscid Incompressible Fluid 

    Kaptsov, Oleg V.; Капцов, Олег В. (Сибирский федеральный университет. Siberian Federal University, 2022-10)
    We consider a system of two-dimensional Euler equations describing the motions of an inviscid incompressible fluid. It reduces to one non-linear equation with partial derivatives of the third order. A group of point ...
  • Existence and Uniqueness of the Solution to a Class of Fractional Boundary Value Problems Using Topological Methods 

    Faree, Taghareed A.; Panchal, Satish K.; Фари, Тагарид А.; Панчал, Сатиш К. (Сибирский федеральный университет. Siberian Federal University, 2022-10)
    This paper investigates the existence and uniqueness of solutions to boundary value prob- lems involving the Caputo fractional derivative in Banach space by topological structures with some appropriate conditions. It is ...
  • Determination of Non-stationary Potential Analytical with Respect to Spatial Variables 

    Durdiev, Durdimurod K.; Totieva, Zhanna D.; Дурдиев, Дурдимурод К.; Тотиева, Жанна Д. (Сибирский федеральный университет. Siberian Federal University, 2022-10)
    The inverse problem of determining coefficient before the lower term of the hyperbolic equation of the second order is considered. The coefficient depends on time and n spatial variables. It is supposed that this coefficient ...
  • Study of a Deformation Localization Direction in Slow Motion of a Granular Medium 

    Kuzovatova, Olga I.; Кузоватова, Ольга И. (Сибирский федеральный университет. Siberian Federal University, 2022-10)
    This paper is devoted to the study of the direction of the deformation localization lines in a slow gravity flow of a granular medium in convergent channels with various geometric characteristics. Variational principles ...

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