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  • 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 posets of width two with positive Tits form 
    Bondarenko, V.M.; Styopochkina, M.V. (Algebra and Discrete Mathematics, 2005)
    We give a complete description of the finite posets of width two with the Tits form to be positive. This problem arises in studying the categories of representations of posets of finite type.
  • On possibilities of diagnostics and formation of picosecond electron bunches in the linear accelerator by means of an optical deflector 
    Dyomin, V.S.; Reprintsev, L.V.; Shendrik, V.A. (Вопросы атомной науки и техники, 2004)
    The possibilities for measuring the phase charge distribution in picosecond bunches of the electron linac without application of an electron-optical chamber are discussed. It is proposed to use the measurement scheme based ...
  • On possibility of alpha-radioactive thick-layer waste analysis using high-vacuum technique methods 
    Dikiy, N.P.; Dovbnya, A.N.; Myakushko, L.K.; Reprintsev, L.V.; Tenishev, A.Eh.; Uvarov, V.L. (Вопросы атомной науки и техники, 2002)
    A practical possibility of specific alpha-activity measurement of the radioactive waste (RAW) as much as thousands tons placed in the 4-th Chornobyl wrecking unit is demonstrated by means of determination of the helium ...
  • On possibility of high frequency electron beam scanning with application of focusing system for X-ray generation 
    Bondarenko, T.V. (Вопросы атомной науки и техники, 2014)
    The article describes the electron beam scanning system in combination with electromagnetic focusing system. These systems find their application in different vacuum tube devices that provide the generation of X-ray ...
  • On possibility of pressure perturbation resonant excitation by an external low frequency helical field near edge plasma 
    Pankratov, I.M.; Omelchenko, A.Ya. (Вопросы атомной науки и техники, 2011)
    In the frame of one-fluid MHD a possibility of the pressure perturbation resonant excitation by external low frequency helical magnetic perturbations near the plasma edge is shown. The plasma rotation plays the key role ...
  • On possibility of separation of ²³⁹Pu and ²⁴⁰Pu contributions in emergency plutonium fallout of Chernobyl accident origin 
    Vodin, A.N.; Olejnik, S.N.; Rudak, E.A.; Ushakov, I.V.; Yachnik, O.I. (Вопросы атомной науки и техники, 2009)
    The experiment-calculated method for separation of total α-activities of plutonium isotopes A(²³⁹Pu+²⁴⁰Pu) on partial activities A(²³⁹Pu) and A(²⁴⁰Pu) in emergency fallout of Chernobyl accident origin is developed.
  • On possibility of short-living positron-emitting nuclides production using electron accelerator for medical diagnostics 
    Zadvorny, A.S. (Вопросы атомной науки и техники, 2011)
    Comparison is made of technologies of radiopharmaceuticals (RPC) production that are labeled with positron-emitting nuclides using a cyclotron and an electron accelerator (EA). It is shown that specific activities of RPC ...
  • On possible stationary equilivrium of dusty self-gravitating space plasmas 
    Yaroshenko, V.; Debosscher, A.; Goossens, M.; Morfill, G. (Вопросы атомной науки и техники, 2002)
  • On power structures 
    Bosnjak, I.; Madarasz, R. (Algebra and Discrete Mathematics, 2003)
    In general, power structure of a structure A (with universe A) is an appropriate structure defined on the power set P(A). There are lot of papers concerning this topic in which power structures appear explicitly or ...
  • On pragmatist institutional economics 
    Yefimov, V. (Математичне моделювання в економіці, 2015)
    There are two logics of the functioning of science as an institution: the logic of production and dissemination of knowledge oriented to solve existing socio-economic problems and the logic of survival of members of the ...
  • On primarily multiplication modules over pullback rings 
    Reza Ebrahimi Atani; Shahabaddin Ebrahimi Atani (Algebra and Discrete Mathematics, 2011)
    The purpose of this paper is to present a new approach to the classification of indecomposable primarily multi-plication modules with finite-dimensional top over pullback of two Dedekind domains. We extend the definition ...
  • On Principle of Equicontinuity 
    Abdul Rahim Khan (Электронное моделирование, 2007)
    The main purpose of this paper is to prove some results of uniform boundedness principle type without the use of Baire’s category theorem in certain topological vector spaces; this provides an alternate route and important ...
  • On problem of the rigorous diffraction quantitative description 
    Anokhov, S. (Semiconductor Physics Quantum Electronics & Optoelectronics, 1999)
    New data showing an inaccuracy of Kirchhoff's description for the diffraction of the limited aperture light beams are presented. A series of the known experimental facts, which did not have an unequivocal interpretation ...
  • On production efficiency of medical and biophysical isotopes using electron accelerator 
    Dikiy, N.P.; Dovbnya, A.N.; Maryokhin, S.V.; Uvarov, V.L. (Вопросы атомной науки и техники, 1999)
    The results obtained demonstrate that using the high-current electron accelerator it is possible to produce a number of isotopes for medicine and biophysics. The satisfactory agreement of experimental and computer ...
  • On production ultrashort- and short-lived isotopes for nuclear medicine at cyclotron CV-28 
    Petrusenko, Yu.T.; Nikolaichuk, L.I.; Tutubalin, A.I.; Shepelev, A.G.; Ponomarenko, T.A.; Nemashkalo, O.V. (Вопросы атомной науки и техники, 2009)
    The paper presents a survey of experimental methods for cyclotron production of ultrashort-lived (USL) and short-lived (SL) radionuclides recommended by the IAEA as most widely used in nuclear medicine. The data on ...
  • On Projections in the Noncommutative 2-Torus Algebra 
    Eckstein, M. (Symmetry, Integrability and Geometry: Methods and Applications, 2014)
    We investigate a set of functional equations defining a projection in the noncommutative 2-torus algebra Aθ. The exact solutions of these provide various generalisations of the Powers-Rieffel projection. By identifying the ...
  • On Projective Equivalence of Univariate Polynomial Subspaces 
    Crooks, P.; Milson, R. (Symmetry, Integrability and Geometry: Methods and Applications, 2009)
    We pose and solve the equivalence problem for subspaces of Pn, the (n+1) dimensional vector space of univariate polynomials of degree ≤ n. The group of interest is SL2 acting by projective transformations on the Grassmannian ...
  • On proper accretive extensions of positive linear relations 
    Arlinskii, Yu.M. (Український математичний журнал, 1995)
    A linear relation Ŝ is called a proper extension of a symmetric linear relation S if S ⊂ Ŝ ⊂ S*. As is well known, an arbitrary dissipative extension of a symmetric linear relation is proper. In the present paper, we ...
  • On properties of functions from Lizorkin-Triebel-Morrey type spaces 
    Najafov, A.M.; Gasimova, A.M. (Український математичний вісник, 2018)
    We have introduced new functional spaces of the Lizorkin–Triebel–Morrey type, and a Sobolev-type inequality is proved. We have also shown that the generalized derivatives of functions from this spaces satisfy the generalized ...