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Сортувати за: Порядок: Результатів:

  • On N-th order nonlinear ordinary random differential equations 
    Dhage, B.C. (Нелінійні коливання, 2010)
    In this paper, an existence result for a nonlinear n-th order ordinary random differential equation is proved under Caratheodory condition. Two existence results for extremal random solutions are also proved for ´ Caratheodory ...
  • On n-Tuples of Subspaces in Linear and Unitary Spaces 
    Samoilenko, Yu.S.; Yakymenko, D.Yu. (2009)
    We study a relation between brick n-tuples of subspaces of a finite dimensional linear space, and irreducible n-tuples of subspaces of a finite dimensional Hilbert (unitary) space such that a linear combination, with ...
  • On n-widths of bounded periodic holomorphic functions 
    Wilderotter, K. (Український математичний журнал, 1995)
    The even-dimensional Kolmogorov widths d2n, Gel'fand widths d²ⁿ, and linear widths δ2n ofà inL q andC are determined exactly. We show that all threen-widths are equal and give a characterization of the widths in terms of ...
  • On One Approach to Investigation of Mechanical System 
    Irtegov, V.D.; Titorenko, T.N. (Symmetry, Integrability and Geometry: Methods and Applications, 2006)
    The paper presents some results of qualitative analysis of Kirchhoff's differential equations describing motion of a rigid body in ideal fluid in Sokolov's case. The research methods are based on Lyapunov's classical ...
  • On one class of algebras 
    Zhuchok, Yul.V. (Algebra and Discrete Mathematics, 2014)
    In this paper a g-dimonoid which is isomorphic to the free g-dimonoid is given and a free n-nilpotent g-dimonoid is constructed. We also present the least n-nilpotent congruence on a free g-dimonoid and give numerous ...
  • On One Class of Non-Dissipative Operators 
    Levchuk, V.N. (Журнал математической физики, анализа, геометрии, 2017)
    The non-dissipative operator of integration is studied in the weight space. Its similarity to the operator of integration in the space without weight is proved. The functional model for this operator is obtained.
  • On one class of nonlinear operator equations in Hilbert spaces 
    Britov, N.A. (Нелинейные граничные задачи, 2000)
    One special class of nonlinear operator equations depended from two real numerical parameters in Hilbert spaces are considered. Non-local conditions of existence and uniqueness of solutions are established. The conditions ...
  • On one class of partition polynomials 
    Zatorsky, R.; Stefluk, S. (Algebra and Discrete Mathematics, 2013)
    We consider relations between one class of partition polynomials, parafunctions of triangular matrices (tables), and linear recurrence relations.
  • On one class of semiperfect semidistributive rings 
    Kasyanuk, M. (Algebra and Discrete Mathematics, 2013)
    In this paper we consider the Artinian semidistributive rings.
  • On One Nonlinear Boundary-Value Problem in Kinetic Theory of Gases 
    Khachatryan, A.Kh.; Khachatryan, Kh.A.; Sardaryan, T.H. (Журнал математической физики, анализа, геометрии, 2014)
    In the paper, the solvability of one nonlinear boundary-value problem arising in kinetic theory of gases is studied. We prove the existence of global solvability of a boundary-value problem in the Sobolev space W¹∞ (R+). ...
  • On One of the Weapon Types of Cimmerian Time 
    Klochko, D.D. (Археологія, 2020)
    The article is dedicated to the analysis of bimetallic swords and daggers of Cimmerian time, which were found both at Ukrainian territory and neighboring countries. The previously known and new findings are analyzed.
  • On one-sided interval edge colorings of biregular bipartite graphs 
    Kamalian, R.R. (Algebra and Discrete Mathematics, 2015)
    A proper edge t-coloring of a graph G is a coloring of edges of G with colors 1,2,…,t such that all colors are used, and no two adjacent edges receive the same color. The set of colors of edges incident with a vertex ...
  • On one-sided Lie nilpotent ideals of associative rings 
    Luchko, V.S.; Petravchuk, A.P. (Algebra and Discrete Mathematics, 2007)
    We prove that a Lie nilpotent one-sided ideal of an associative ring R is contained in a Lie solvable two-sided ideal of R. An estimation of derived length of such Lie solvable ideal is obtained depending on the class of ...
  • On one stochastic optimal control problem with variable delay 
    Agayeva, Ch.A.; Allahverdiyeva, J.J. (2007)
    The purpose of this paper is to give necessary conditions for the optimality of nonlinear stochastic control systems with variable delay and with constraint on the right end of a trajectory. The necessary optimality ...
  • On one stochastic optimal control problem with variable delay 
    Agayeva, C. (2007)
    A stochastic optimal control problem with variable delays in control is considered. The maximum principle for nonlinear stochastic control system with constrains in the right end of trajectory is proved.
  • On Orbifold Criteria for Symplectic Toric Quotients 
    Farsi, C.; Seaton, C.; Herbig, H.-C (Symmetry, Integrability and Geometry: Methods and Applications, 2013)
    We introduce the notion of regular symplectomorphism and graded regular symplectomorphism between singular phase spaces. Our main concern is to exhibit examples of unitary torus representations whose symplectic quotients ...
  • On origin of rapid portion of luminance-voltage dependence of ZnS:Mn TFEL devices and its aging behavior 
    Vlasenko, N.A.; Denisova, Z.L.; Kononets, Ya.F.; Veligura, L.I.; Chumachkova, M.M.; Tsyrkunov, Yu.A.; Soininen, E.L.; Tornqvist, R.O.; Vasame, K.M. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2002)
    Some peculiarities in the rapid portion of the voltage dependences of luminance and transferred charge as well as in its aging behavior in ZnS:Mn thin film electroluminescent devices made by different deposition techniques ...
  • On origin of room temperature ferromagnetism in wide gap semiconductors 
    Korbecka, Anna; Majewski, Jacek A. (Физика низких температур, 2009)
    The emerging field of semiconductor spintronics would be dramatically boosted if a semiconductor exhibiting room-temperature ferromagnetism could be found. Here, we discuss the recent stage of the research, paying particular ...
  • On Orthogonality Relations for Dual Discrete q-Ultraspherical Polynomials 
    Groza, V.A.; Kachuryk, I.I. (Symmetry, Integrability and Geometry: Methods and Applications, 2006)
    The dual discrete q-ultraspherical polynomials Dn(s)(μ(x;s)|q) correspond to indeterminate moment problem and, therefore, have one-parameter family of extremal orthogonality relations. It is shown that special cases of ...
  • On oscillation of solutions of second order nonlinear difference equations 
    Koplatadze, R.; Pinelas, S. (Нелінійні коливання, 2012)