Перегляд за назвою

Сортувати за: Порядок: Результатів:

  • On subgroups of saturated or totally bounded paratopological groups 
    Banakh, T.; Ravsky, S. (Algebra and Discrete Mathematics, 2003)
    A paratopological group G is saturated if the inverse U ⁻¹ of each non-empty set U ⊂ G has non-empty interior. It is shown that a [first-countable] paratopological group H is a closed subgroup of a saturated (totally ...
  • On subgroups which cover or avoid chief factors of a finite group 
    Ballester-Bolinches, A.; Ezquerro, L.M.; Skiba, A.N. (Algebra and Discrete Mathematics, 2009)
    A classical topic of research in Finite Group Theory is the following: What is the influence on the structure of the group of the fact that all members of some relevant family of subgoups enjoy a given embedding ...
  • On subharmonic extension and extension in the Hardy-Orlicz classes 
    Riihentaus, J; Tamrazov, P.M. (Український математичний журнал, 1993)
    The paper contains a generalization of certain previous results on subharmonic extension of functions and on extension of functions in the Hardy - Orlicz classes. We give unified proofs of these results.
  • On Subharmonic Functions of the First Order with Restrictions on the Real Axis 
    Poedintseva, I.V. (Журнал математической физики, анализа, геометрии, 2008)
  • On Submanifolds of Pseudo-Hyperbolic Space with 1-Type Pseudo-Hyperbolic Gauss Map 
    Yeğin, R.; Dursun, U. (Журнал математической физики, анализа, геометрии, 2016)
    In this paper, we examine pseudo-Riemannian submanifolds of a pseudo- hyperbolic space with finite type pseudo-hyperbolic Gauss map.
  • On sum of a nilpotent and an ideally finitealgebras 
    Bilun, S.V. (Algebra and Discrete Mathematics, 2007)
    We study associative algebras R over arbitrary fields which can be decomposed into a sum R=A+B of their subalgebras A and B such that A²=0 and B is ideally finite (is a sum of its finite dimensional ideals). We prove that ...
  • On sums of overlapping products of independent Bernoulli random variables 
    Csörgö, S.; Wu, W.B. (Український математичний журнал, 2000)
    We find the exact distribution of an arbitrary remainder of an infinite sum of overlapping products of a sequence of independent Bernoulli random variables.
  • 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 Sushchansky p-groups 
    Bondarenko, I.V.; Savchuk, D.M. (Algebra and Discrete Mathematics, 2007)
    We study Sushchansky p-groups introduced in [Sus79]. We recall the original definition and translate it into the language of automata groups. The original actions of Sushchansky groups on p-ary tree are not level-transitive ...
  • On tame semigroups generated by idempotents with partial null multiplication 
    Bondarenko, V.M.; Tertychna, O.M. (Algebra and Discrete Mathematics, 2008)
    Let I be a finite set without 0 and J a subset in I×I without diagonal elements (i,i). We define S(I,J) to be the semigroup with generators ei, where i∈I∪0, and the following relations: e0=0; e2i=ei for any i∈I; eiej=0 ...
  • On Tanaka's Prolongation Procedure for Filtered Structures of Constant Type 
    Zelenko, I. (Symmetry, Integrability and Geometry: Methods and Applications, 2009)
    We present Tanaka's prolongation procedure for filtered structures on manifolds discovered in [Tanaka N., J. Math. Kyoto. Univ. 10 (1970), 1-82] in a spirit of Singer-Sternberg's description of the prolongation of usual ...
  • On Taxonomic Position of Some Horsefly Species (Diptera, Tabanidae) from Talysh 
    Andreeva, R.V.; Zeynalova, Z.A. (Вестник зоологии, 2002)
    Atylotus talyschensis sp. n. is described; it is similar to A. rusticus ochraceus Olsufjev et Melnikova, differing by elongate appendage of R4 vein, abdomen coloration, shape of frontal calluses and 3rd antennal joint. ...
  • On taxonomic position of two little-known warm-temperate trametoid fungi 
    Zmitrovich, I.V. (Український ботанічний журнал, 2011)
    У результаті здійснених порівняльно-морфологічних досліджень визначено таксономічну позицію двох рідкісних термофільних видів траметоїдних грибів - Trametes cervina і T. ljubarskyi. Перший за сукупністю ознак був перенесений ...
  • On temperature versus doping phase diagram of high critical temperature superconductors 
    Loktev, V.M.; Turkowski, V.M. (Condensed Matter Physics, 1998)
    An attempt to describe the bell-shape dependence of the critical temperature of high-T<sub>c</sub> superconductors on the charge carrier density is made. It is proposed to explain its linear increase in the region of ...
  • On temperаture dependence of ideal separation factor in systems with similar volatility of components 
    Kravchenko, А.I. (Вопросы атомной науки и техники, 2016)
    In temperature interval 800…2400 К the temperature dependence of ideal separation factor αi(Т) for difference double systems with similar volatility of components (at 0.1 < αi < 10) may be as monotonic as non-monotonic; ...
  • On the 60-year jubilee of Machulin Volodymyr Fedorovych Academician of NAS of Ukraine 
    Автор відсутній (Semiconductor Physics Quantum Electronics & Optoelectronics, 2010)
    23 April 2010 is the jubilee date in life of Academician of NAS of Ukraine Machulin Volodymyr Fedorovych: he has reached 60-year age.
  • On the Abstract Inverse Scattering Problem for Trace Class Perturbations 
    Hatamleh, R.; Zolotarev, V.A. (Журнал математической физики, анализа, геометрии, 2017)
    The scattering problem for a pair of selfadjoint operators {L₀, L}, where L - L₀ is of trace-class, is studied. The explicit form of the scattering matrix and its properties are defined. The equation for the inverse problem ...
  • On the Advanced Mechanical Properties of Fe–Cu and Y–Cu Nanocomposites Obtained by Mechanical Alloying 
    Dashevskyi, M.; Belyavina, N.; Nakonechna, O.; Melnichenko, M.; Revo, S. (Металлофизика и новейшие технологии, 2018)
    In this study, the Fe–Cu and Y–Cu nanocomposites are synthesized by mechanical alloying of the elemental powder mixture of the iron, copper and crushed yttrium particles in a high-energy planetary ball mill inside the argon ...
  • On the ambiguity of 4D gravity monitoring of geological media 
    Dubovenko, Yu.; Chorna, O. (Геофизический журнал, 2010)
  • On the Amitsur property of radicals 
    Loi, N.V.; Wiegandt, R. (Algebra and Discrete Mathematics, 2006)
    The Amitsur property of a radical says that the radical of a polynomial ring is again a polynomial ring. A hereditary radical γ has the Amitsur property if and only if its semisimple class is polynomially extensible and ...