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  • Sannikov-Proskuryakov, S.S. (Вопросы атомной науки и техники, 2007)
    We continue consideration of physical characteristics of early Universe. Here our attention is concentrated on the three topics: thermodynamics, relic helium, energy of physical vacuum.
  • Prysyazhnyuk, O. (Культура народов Причерноморья, 2006)
    Статья из специализированного выпуска научного журнала "Культура народов Причерноморья", материалы которого объединены общей темой "Язык и Мир" и посвящены общим вопросам Языкознания и приурочены к 80-летию со дня рождения ...
  • Samoilenko, A.M. (Український математичний журнал, 2011)
    We consider problems of the linear theory of systems of ordinary differential equations related to the investigation of invariant hyperplanes of these systems, the notion of equivalence for these systems, and the Floquet ...
  • Voichyshyn, V.К. (2001)
    The genus Podolaspis Zych, 1931 should today be considered to include three species, i. e., Podolaspis podolica (Alth, 1874), P. lerichei (Zych, 1927), and P. zychi (Brotzen, 1933), taking into account that distinguishing ...
  • Sun-Yung A. Chang; Qing, J.; Yang, P. (Symmetry, Integrability and Geometry: Methods and Applications, 2007)
    This is a survey paper of our current research on the theory of partial differential equations in conformal geometry. Our intention is to describe some of our current works in a rather brief and expository fashion. We are ...
  • 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.
  • Schneider, B. (Український математичний журнал, 2006)
    Our main interest is an analog of a Cauchy-type integral for the theory of the Moisil-Theodoresco system of differential equations in the case of a piecewise-Lyapunov surface of integration. The topics of the paper concern ...
  • Fanti, E.L.C.; Silva, L.S. (Algebra and Discrete Mathematics, 2020)
    Let us consider W a G-set and M a Z₂G-module, where G is a group. In this paper we investigate some properties of the cohomological the theory of splittings of groups. Namely, we give a proof of the invariant E(G,W,M), ...
  • Salkov, E.A.; Svechnikov, G.S. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2003)
    Physical peculiarities of the equilibrium thermal radiation have been considered within the black body model for the case of ultimate restrained photon flows inside an ideal ("lossless") optical communication channel. ...
  • Pererva, T.P. (Биополимеры и клетка, 1998)
    Some genotype and phenotype properties of MS2-induced being granular and lysing Escherichia coli mutants are described –form of colonies, cells form and size, susceptibility to lytic agents, carbohydrates utilization, ...
  • He, P.; Zhang, D. (Український математичний журнал, 2013)
    We obtain certain subordinations and superordinations results involving a new operator. By means of the new introduced operator Cλp,n(a, c)f(z), for certain multivalent functions in the open unit disc, we establish ...
  • Gaglione, A.M.; Lipschutz, S.; Spellman, D. (Algebra and Discrete Mathematics, 2009)
    Property S, a finiteness property which can hold in infinite groups, was introduced by Stallings and others and shown to hold in free groups. In [2] it was shown to hold in nilpotent groups as a consequence of a technical ...
  • Akimov, P.V.; Ender, A.Ya.; Kolinsky, H.; Kuznetsov, V.I.; Schamel, H. (Вопросы атомной науки и техники, 2000)
    Both the initial and late non-linear stages of the oscillation process in a beam vacuum diode in the space-charge-limited current regime are numerically investigated. Two different numerical methods are applied: Birdsall's ...
  • Shchedryk, V.P. (Algebra and Discrete Mathematics, 2005)
    The properties of primitive matrices (matrices for which the greatest common divisor of the minors of maximal order is equal to 1) over Bezout B - domain, i.e. commutative domain finitely generated principal ideal in ...
  • Chandra, S.; Prakash, O.; Suthar, S. (Algebra and Discrete Mathematics, 2017)
    Let Zn be the finite commutative ring of residue classes modulo n with identity and Γ(Zn) be its zero-divisor graph. In this paper, we investigated some properties of nilradical graph, denoted by N(Zn) and non-nilradical ...
  • Chen, X.Y.; Moghaddamfar, A.R.; Zohourattar, M. (Algebra and Discrete Mathematics, 2021)
    In this paper we investigate some properties of the power graph and commuting graph associated with a finite group, using their tree-numbers. Among other things, it is shown that the simple group L₂(7) can be characterized ...
  • Olenko, A.; Klykavka, B. (2006)
    The rate of convergence for weight functions series in Tauberian theorems is obtained. Numerical results demonstrate required rate of convergence. Some asymptotic properties of hypergeometric functions are obtained as ...
  • Olenko, A. (2007)
    New representations for weight functions in Tauberian theorems are derived. The representations are given by recurrent formulae. Obtained results are used to study properties of the weight functions.
  • Dovbnya, A.N.; Starenky, V.P.; Goncharov, I.G.; Cherniavskіy, I.Y.; Anashkin, O.A.; Vlasenko, V.O.; Ovcharenko, K.S. (Вопросы атомной науки и техники, 2020)
    The results of approbation of the methodology for laboratory testing a materials for armored objects radiation protection by determining their half-value layer for nuclear radiations, which are typical for the main situations ...
  • Yuferov, V.B.; Katrechko, V.V.; Tkachova, T.I.; Shariy, S.V.; Svichkar, A.S.; Mufel, E.V.; Ilichova, V.О.; Shvets, M.O. (Вопросы атомной науки и техники, 2015)
    Possible composition of spent nuclear fuel (SNF) before and after the thermal separation stage is shown. The possibility of SNF purification from fission products (FP) at the ionization stage is analyzed. Trajectories of ...