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Перегляд Український математичний журнал, 2013, том 65 за назвою

Репозиторій DSpace/Manakin

Перегляд Український математичний журнал, 2013, том 65 за назвою

Сортувати за: Порядок: Результатів:

  • Method of Lines for Quasilinear Functional Differential Equations 
    Czernous, W.; Kamont, Z. (Український математичний журнал, 2013)
    We give a theorem on the estimation of error for approximate solutions to ordinary functional differential equations. The error is estimated by a solution of an initial problem for a nonlinear functional differential ...
  • New Sharp Ostrowski-type Inequalities and Generalized Trapezoid-type Inequalities for Riemann–Stieltjes Integrals and their Applications 
    Alomari, M.W. (Український математичний журнал, 2013)
    We prove new sharp weighted generalizations of Ostrowski-type and generalized trapezoid-type inequalities for Riemann–Stieltjes integrals. Several related inequalities are deduced and investigated. New Simpson-type ...
  • On 3-dimensional f-Kenmotsu manifolds and Ricci solitons 
    Yildiz, A.; De, U.C.; Turan, M. (Український математичний журнал, 2013)
    The aim of the present paper is to study 3-dimensional f-Kenmotsu manifolds and Ricci solitons. First, we give an example of a 3-dimensional f-Kenmotsu manifold. Then we consider a Riccisemisymmetric 3-dimensional f-Kenmotsu ...
  • On equivalent cone metric spaces 
    Ölmez, Ö.; Aytar, S. (Український математичний журнал, 2013)
    We explore the necessary and sufficient conditions for the two cone metrics to be topologically equivalent.
  • On Lie Ideals and Generalized Jordan Left Derivations of Prime Rings 
    Rehman, N.; Ansari, A.Z. (Український математичний журнал, 2013)
    Let R be a prime ring with characteristic different from 2 and U be a Lie ideal of R. In the paper, we initiate the study of generalized Jordan left derivations on Lie ideals of R and prove that every generalized Jordan ...
  • On M-projectively flat LP-Sasakian manifolds 
    Zengin, F.Ö. (Український математичний журнал, 2013)
    In the present paper, we study the nature of LP-Sasakian manifolds admitting the M-projective curvature tensor. It is examined whether this manifold satisfies the condition W(X, Y ).R = 0. Moreover, it is proved that, in ...
  • On polymer expansions for generalized Gibbs lattice systems of oscillators with ternary interaction 
    Skrypnik, W.I. (Український математичний журнал, 2013)
    We propose a new short proof of the convergence of high-temperature polymer expansions in the thermodynamic limit of canonical correlation functions for classical and quantum Gibbs lattice systems of oscillators interacting ...
  • On Some Multidimensional Hilbert-Type Inequalities in the Discrete Case 
    Krnić, M.; Vuković, P. (Український математичний журнал, 2013)
    Motivated by the results of Huang, we deduce a pair of discrete multidimensional Hilbert-type inequalities involving a homogeneous kernel of negative degree. We also establish conditions under which the constant factors ...
  • On Supplement Submodules 
    Nebiyev, C.; Pancar, A. (Український математичний журнал, 2013)
    We investigate some properties of supplement submodules. Some relations between lying-above and weak supplement submodules are also studied. Let V be a supplement of a submodule U in M. Then it is possible to define a ...
  • On the Behavior of Solutions of a Third-Order Nonlinear Dynamic Equation on Time Scales 
    Şenel, M.T. (Український математичний журнал, 2013)
  • On the interaction of an elasticwall with a poiseuille-type flow 
    Chueshov, I.; Ryzhkova, I. (Український математичний журнал, 2013)
    We study the dynamics of a coupled system formed by the 3D Navier–Stokes equations linearized near a certain Poiseuille-type flow in an (unbounded) domain and a classical (possibly nonlinear) equation for transverse ...
  • On the invariants of root subgroups of finite classical groups 
    Jizhu Nan; Yufang Qin (Український математичний журнал, 2013)
    We show that invariant fields Fq(X1, . . . , Xn)G are purely transcendental over Fq if G are root subgroups of finite classical groups. The key step is to find good similar groups of our groups. Moreover, the invariant ...
  • On the Restricted Projective Dimension of Complexes 
    Li Liang; Dejun Wu (Український математичний журнал, 2013)
    We study the restricted projective dimension of complexes and give some new characterizations of the restricted projective dimension. In particular, it is shown that the restricted projective dimension can be computed in ...
  • On the topological fundamental groups of quotient spaces 
    Torabi, H.; Pakdaman, A.; Mashayekhy, B. (Український математичний журнал, 2013)
  • On the β-Dual of Banach-Space-Valued Difference Sequence Spaces 
    Bhardwaj, V.K.; Gupta, S. (Український математичний журнал, 2013)
    The main object of the paper is to introduce Banach-space-valued difference sequence spaces `∞(X, ∆), c(X, ∆), and c₀(X, ∆) as a generalization of the well-known difference sequence spaces of Kizmaz.
  • On Typical Compact Submanifolds of the Euclidean Space 
    Mirzaie, R. (Український математичний журнал, 2013)
    It is shown that typical compact submanifolds of Rⁿ are nowhere differentiable with integer box dimensions.
  • On Zeros of Periodic Zeta Functions 
    Laurinčikas, A.; Šiaučiūnas, D. (Український математичний журнал, 2013)
    We consider zeta functions ζ(s; a) given by Dirichlet series with multiplicative periodic coefficients and prove that, for some classes of functions F , the functions F(ζ(s; a)) have infinitely many zeros in the critical ...
  • Projective method for the equation of risk theory in the arithmetic case 
    Chernecky, V.A. (Український математичний журнал, 2013)
    We consider a discrete model of operation of an insurance company whose initial capital can take any integer value. In this statement, the problem of nonruin probability is naturally solved by the Wiener – Hopf method. ...
  • q-Apostol–Euler Polynomials and q-Alternating Sums 
    Luo, Q.-M. (Український математичний журнал, 2013)
    Basic properties are established and generating functions are obtained for the q -Apostol–Euler polynomials. We define q -alternating sums and obtain q -extensions of some formulas from Integral Transform. Spectr. Funct., ...
  • Representation of a solution of the Cauchy problem for an oscillating system with two delays and permutable matrices 
    Diblík, J.; Fečkan, M.; Pospíšil, M. (Український математичний журнал, 2013)
    We represent a solution of an inhomogeneous second-order differential equation with two delays by using matrix functions under the assumption that the linear parts are given by permutable matrices.

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