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Перегляд Журнал математической физики, анализа, геометрии за назвою

Репозиторій DSpace/Manakin

Перегляд Журнал математической физики, анализа, геометрии за назвою

Сортувати за: Порядок: Результатів:

  • Smarandache Theorem in Hyperbolic Geometry 
    Kostin, A.V.; Sabitov, I.Kh. (Журнал математической физики, анализа, геометрии, 2014)
    In the paper a hyperbolic version of the Smarandache pedal polygon theorem is considered.
  • Solutions of Nonlinear Schrödinger Equation with Two Potential Wells in Linear/Nonlinear Media 
    Gerasimchuk, V.S.; Gerasimchuk, I.V.; Dranik, N.I. (Журнал математической физики, анализа, геометрии, 2016)
    In the framework of nonlinear Schrödinger equation, we analytically studied the nonlinear localized states in the system with two potential holes in the cases of linear and nonlinear media in the holes as well as their ...
  • Solution to the Homogeneous Boundary Value Problems of Free Vibrations of a Finite String 
    Dolya, P.G. (Журнал математической физики, анализа, геометрии, 2008)
    In the paper solutions to the homogeneous boundary value problems of free vibrations of a nite string are obtained in the d'Alembert form. The initial boundary value problems to vibrations of a string with free ends as ...
  • Solvability in Holder Space of an Initial Boundary Value Problem for the Time-Fractional Diffusion 
    Krasnoschok, M.V. (Журнал математической физики, анализа, геометрии, 2016)
    In this paper we consider an initial boundary value problem for the timefractional diffusion equation with mixed boundary conditions. We prove a theorem of existence and uniqueness of solution to this problem in Hölder spaces.
  • Solving of Partial Differential Equations under Minimal Conditions 
    Maslyuchenko, V.K.; Mykhaylyuk, V.V. (Журнал математической физики, анализа, геометрии, 2008)
    It is proved that a differentiable with respect to each variable function f : R2 → R is a solution of the equation ∂u/∂x + ∂u/∂y = 0 if and only if there exists a function φ : R → R such that f(x, y) = φ(x - y). This gives ...
  • Some Applications of Meijer G-Functions as Solutions of Differential Equations in Physical Models 
    Pishkoo, A.; Darus, M. (Журнал математической физики, анализа, геометрии, 2013)
    In this paper, we aim to show that the Meijer G-functions can serve to find explicit solutions of partial differential equations (PDEs) related to some mathematical models of physical phenomena, as for example, the Laplace ...
  • Some Comparison Theorems in Finsler--Hadamard Manifolds 
    Borisenko, A.A.; Olin, E.A. (2007)
    We give upper and lower bounds for the ratio of the volume of metric ball to the area of metric sphere in Finsler-Hadamard manifolds with the pinched S-curvature. We apply these estimates to find the limit at infinity for ...
  • Some Multidimensional Inverse Problems of Memory Determination in Hyperbolic Equations 
    Durdiev, D.K. (2007)
    The local existence and the uniqueness of some multidimensional inverse problems for the second-order hyperbolic integro-di erential equations in the class of functions having certain smoothness on time variable and ...
  • Some Properties Concerning Curvature Tensors of Eight-Dimensional Walker Manifolds 
    Iscan, M.; Gezer, A.; Salimov, A. (Журнал математической физики, анализа, геометрии, 2012)
    The main purpose of the present paper is to study conditions for the eight-dimensional Walker manifolds which admit a field of parallel null 4-planes to be Einsteinian, Osserman, or locally conformally flat.
  • Some Sharp Estimates for Convex Hypersurfaces of Pinched Normal Curvature 
    Drach, K. (Журнал математической физики, анализа, геометрии, 2015)
    For a convex domain D bounded by the hypersurface ∂D in a space of constant curvature we give sharp bounds on the width R - r of a spherical shell with radii R and r that can enclose ∂D, provided that normal curvatures of ...
  • Space-like Submanifolds with Parallel Normalized Mean Curvature Vector Field in de Sitter Space 
    Shu, Sh. (Журнал математической физики, анализа, геометрии, 2011)
    Space-like submanifolds, with dimension greater than three and with negative definite normal bundle in a general de Sitter space, of any index, are studied. For the compact space-like submanifolds whose mean curvature has ...
  • Spectral Analysis of Discontinuous Boundary-Value Problems with Retarded Argument 
    Erdoğan Şen (Журнал математической физики, анализа, геометрии, 2018)
    In the paper, we are concerned with spectral properties of discontinuous Sturm–Liouville type problems with retarded argument. We extend and generalize some approaches and results of the classical regular and discontinuous ...
  • Spectral Mapping Theorem for the Davies-Helffer-Sjöstrand Functional Calculus 
    Claire, N.S. (Журнал математической физики, анализа, геометрии, 2012)
    We give a direct non-abstract proof of the spectral mapping theorem for the Davies–Helffer–Sjöstrand functional calculus for linear operators on Banach spaces with real spectra and consequently give a new non-abstract ...
  • Spectral Problem Generated by the Equation of Smooth String with Piece-Wise Constant Friction 
    Kobyakova, L. (Журнал математической физики, анализа, геометрии, 2012)
    In the paper, the spectral problem generated by the Sturm-Liouville equation -y'' + q(x)y = (λ² - ip(x)λ)y, where q(x) is a real L₂(0, a)-function and p(x) is a peace-wise constant, is considered with the Dirichlet boundary ...
  • Spectrum of Two-Magnon non-Heisenberg Ferromagnetic Model of Arbitrary Spin with Impurity 
    Tashpulatov, S.M. (Журнал математической физики, анализа, геометрии, 2013)
    We consider a two-magnon system in the isotropic non-Heisenberg ferromagnetic model of an arbitrary spin s on a n-dimensional lattice Zⁿ. We establish that the essential spectrum of the system consists of the union of at ...
  • Spherical Principal Series of Quantum Harish-Chandra Modules 
    Bershtein, O.; Stolin, A.; Vaksman, L. (Журнал математической физики, анализа, геометрии, 2007)
    The nondegenerate spherical principal series of quantum Harish-Chandra modules is constructed. These modules appear in the theory of quantum bounded symmetric domains.
  • Spherical Quadrilaterals with Three Non-integer Angles 
    Eremenko, A.; Gabrielov, A.; Tarasov, V. (Журнал математической физики, анализа, геометрии, 2016)
    A spherical quadrilateral is a bordered surface homeomorphic to a closed disk, with four distinguished boundary points called corners, equipped with a Riemannian metric of constant curvature 1, except at the corners, and ...
  • Step-Initial Function to the MKdV Equation: Hyper-Elliptic Long-Time Asymptotics of the Solution 
    Kotlyarov, V.; Minakov, A. (Журнал математической физики, анализа, геометрии, 2012)
    The modified Korteveg{de Vries equation on the line is considered. The initial function is a discontinuous and piece-wise constant step function, i.e. q(x, 0) = cr for x ≥ 0 and q(x, 0) = cl for x < 0, where cl, cr are ...
  • Subdiagrams of Bratteli Diagrams Supporting Finite Invariant Measures 
    Bezuglyi, S.; Karpel, O.; Kwiatkowski, J. (Журнал математической физики, анализа, геометрии, 2015)
    We study finite measures on Bratteli diagrams invariant with respect to the tail equivalence relation. Amongst the proved results on the finiteness of measure extension, we characterize the vertices of a Bratteli diagram ...
  • Subharmonic almost periodic functions 
    Rakhnin, A.V.; Favorov, S.Yu. (Журнал математической физики, анализа, геометрии, 2005)
    We prove that almost periodicity in the sense of distributions coincides with almost periodicity with respect to Stepanov's metric for the class of subharmonic functions in a strip {z belongs C : a < Imz < b}. We also prove ...

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