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Перегляд Український математичний журнал за назвою

Репозиторій DSpace/Manakin

Перегляд Український математичний журнал за назвою

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  • 2-прості області Оре стабільного рангу 1 
    Домша, О.В. (Український математичний журнал, 2010)
    Известно, что простая область Безу является областью элементарных делителей тогда и только тогда, когда она 2-простая. В работе доказано, что над 2-простой областью Орэ стабильного ранга 1 произвольная матрица, не являющаяся ...
  • Abelian-by-FC-hypercentral groups 
    Tomkinson, M.J. (Український математичний журнал, 1991)
    A splitting Theorem for FC-hypercentral group G and ZG-module of finite rank is obtained. According to this Theorem, under certain conditions, every extention E of the ZG-module A by the group G is split and all the ...
  • A characterization of totally umbilical hypersurfaces of a space form by geodesic mapping 
    Canfes, E.Ö.; Özdeğer, A. (Український математичний журнал, 2013)
    The idea of considering the second fundamental form of a hypersurface as the first fundamental form of another hypersurface has found very useful applications in Riemannian and semi-Riemannian geometry, especially when ...
  • A class of p-valent meromorphic functions defined by the Liu–Srivastava operator 
    Seoudy, T.M.; Aouf, M.K. (Український математичний журнал, 2014)
    We introduce a subclass of p-valent meromorphic functions involving the Lui–Srivastava operator and investigate various properties of this subclass. We also indicate the relationships between various results presented in ...
  • A class of strong limit theorems for nonhomogeneous Markov chains indexed by a generalized Bethe tree on a generalized random selection system 
    Kangkang Wang (Український математичний журнал, 2011)
    We study strong limit theorems for a bivariate function sequence of an nonhomogeneous Markov chain indexed by a generalized Bethe tree on a generalized random selection system by constructing a nonnegative martingale. As ...
  • A common fixed point for generalized (ψ, φ)f,g-weak contractions 
    Razani, A.; Parvaneh, V.; Abbas, M. (Український математичний журнал, 2011)
    We extend the common fixed point theorem established by Zhang and Song in 2009 to generalized (ψ, φ)f,g weak contractions. Moreover, we give an example that illustrates the main result. Finally, some common fixed point ...
  • A comonotonic theorem for backward stochastic differential equations in Lp and its applications 
    Zong, Z.J. (Український математичний журнал, 2012)
    We study backward stochastic differential equations (BSDE) under weak assumptions on the data. We obtain a comonotonic theorem for BSDE in Lp; 1 < p ≤ 2: As applications of this theorem, we study the relation between Choquet ...
  • A companion of Dragomir’s generalization of the Ostrowski inequality and applications to numerical integration 
    Alomari, M.W. (Український математичний журнал, 2012)
    Some analogs of Dragomir’s generalization of the Ostrowski integral inequality are established. Some sharp inequalities are proved. An application to the composite quadrature rule is provided.
  • Admissibility of Estimated Regression Coefficients Under Generalized Balanced Loss 
    Hong-Bing Qiu; Ji Luo; Jiajia Zhang (Український математичний журнал, 2015)
    There are some discussions concerning the admissibility of estimated regression coefficients under the balanced loss function in the general linear model. We study this issue for the generalized linear regression model. ...
  • Admissible vector fields and related diffusions on infinite-dimensional manifolds 
    Elworthy, K.D.; Zhi-Ming Ma (Український математичний журнал, 1997)
    A variation on the notion of “admissibility” for vector fields on certain infinite-dimensional manifolds with measures on them is described. It leads to the construction of associated diffusions and Markov semigroups on ...
  • A general class of evolutionary equations 
    Hale, J.K. (2007)
    За допомогою спостережуваних величин та змінної стану динамічного процесу визначено загальне еволюційне рівняння, що узагальнює класичні звичайні диференціальні рівняння, диференціальні рівняння з частинними похідними та ...
  • A generalization of an extended stochastic integral 
    Albeverio, S.; Berezansky, Yu.M.; Tesko, V.A. (Український математичний журнал, 2007)
    We propose a generalization of an extended stochastic integral in the case of integration with respect to a wide class of random processes. In particular, we obtain conditions for the coincidence of the considered ...
  • A generalization of lifting modules 
    Kalati, T.A. (Український математичний журнал, 2014)
    We introduce the notion of I -lifting modules as a proper generalization of the notion of lifting modules and present some properties of this class of modules. It is shown that if M is an I -lifting direct projective module, ...
  • A generalized mixed type of quartic, cubic, quadratic and additive functional equation 
    Rassias, J.M.; Xu, T.Z.; Xu, W.X. (Український математичний журнал, 2011)
    We determine the general solution of the functional equation f(x+ky)+f(x−ky) = g(x+y)+g(x−y)+ +h(x)+h˜(y) for fixed integers k with k 6= 0, ±1 without assuming any regularity condition on the unknown functions f, g, h, ...
  • A Globally and R-Linearly Convergent Hybrid HS and PRP Method and its Inexact Version with Applications 
    Zhou, W. (Український математичний журнал, 2015)
    We present a hybrid HS- and PRP-type conjugate gradient method for smooth optimization that converges globally and R-linearly for general functions. We also introduce its inexact version for problems of this kind in which ...
  • A goodness-of-fit test for a polynomial errors-in-variables model 
    Cheng, C.-L.; Kukush, A.G. (Український математичний журнал, 2004)
    Polynomial regression models with errors in variables are considered. A goodness-of-fit test is constructed, which is based on an adjusted least-squares estimator and modifies the test introduced by Zhu et al. for a linear ...
  • A Higher-Dimensional Version of the Brody Reparametrization Lemma 
    Nguyen Doan Tuan (Український математичний журнал, 2004)
    We prove a generalization of the Brody reparametrization lemma.
  • Algebraic dependences of meromorphic mappings in several complex variables 
    Duc Thoan Pham; Viet Duc Pham (Український математичний журнал, 2010)
    We give some theorems on algebraic dependence of meromorphic mappings in several complex variables into complex projective spaces.
  • Almost MGP-Injective Rings 
    Zhu Zhanmin (Український математичний журнал, 2013)
    A ring R is called right almost MGP-injective (or AMGP-injective) if, for any 0 ≠ a ∈ R, there exists an element b ∈ R such that ab = ba ≠ 0 and any right R-monomorphism from abR to R can be extended to an endomorphism of ...
  • A locally compact quantum group of triangular matrices 
    Fima, P.; Vainerman, L. (Український математичний журнал, 2008)
    We construct a one parameter deformation of the group of 2×2 upper triangular matrices with determinant 1 using the twisting construction. An interesting feature of this new example of a locally compact quantum group is ...

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