Наукова електронна бібліотека
періодичних видань НАН України

Перегляд Фізико-технічні та математичні науки за назвою

Репозиторій DSpace/Manakin

Перегляд Фізико-технічні та математичні науки за назвою

Сортувати за: Порядок: Результатів:

  • Packing non-equal hyperspheres into a hypersphere of minimal radius 
    Yaskov, G.N. (Проблемы машиностроения, 2014)
    The problem of packing different hyperspheres into a hypersphere of minimal radius is considered. All hypersphere radii are supposed to be variable. Solving the problem is reduced to solving a sequence of mathematical ...
  • Painlevé Analysis and Similarity Reductions for the Magma Equation 
    Harris, S.E.; Clarkson, P.A. (Symmetry, Integrability and Geometry: Methods and Applications, 2006)
    In this paper, we examine a generalized magma equation for rational values of two parameters, m and n. Firstly, the similarity reductions are found using the Lie group method of infinitesimal transformations. The Painlevé ...
  • Palais-Smale condition for chiral fields 
    Suvorov, S.G. (Нелинейные граничные задачи, 1999)
    The well known condition of compactness entered by R. Palais and S. Smale| - condition (C) - can be proved traditionally in rare cases, especially if it is considered the problem about critical points for functional f(u), ...
  • Paley-type graphs of order a product of two distinct primes 
    Das, A. (Algebra and Discrete Mathematics, 2019)
    In this paper, we initiate the study of Paley-type graphs ГN modulo N = pq, where p, q are distinct primes of the form 4k + 1. It is shown that ГN is an edge-regular, symmetric, Eulerian and Hamiltonian graph. Also, the ...
  • Palladium erosion behavior under low/high local hydrogen recycling in steady state plasmas 
    Glazunov, G.P.; Volkov, E.D.; Baron, D.I.; Konotopskiy, A.L.; Hassanein, A. (Вопросы атомной науки и техники, 2002)
    Sputtering experiments were carried out in steady state plasma of a mirror Penning discharge with cathodes made from hydrogen saturated/non-saturated palladium. For the both cases no difference in erosion behavior was found ...
  • Parabolic Foliations on Three-Manifolds 
    Krouglov, V. (Журнал математической физики, анализа, геометрии, 2009)
    We prove that every closed orientable three-manifold admits a parabolic foliation.
  • Paradigms of dynamic chaos 
    Buts, V.A. (Вопросы атомной науки и техники, 2013)
    It is shown that a condition of occurrence of regimes with chaotic behavior of dynamic systems demands more steadfast studying. In particular, it is shown that if we will take into account singular solutions the chaotic ...
  • Paraelectric properties of PbTe doped with Ga 
    Tetyorkin, V.; Movchan, S. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2000)
    The static dielectric constant was investigated as a function of temperature and carrier concentration in In(Cu)/p-PbTe Schottky contacts. Single crystals of PbTe doped with Ga were used as substrates for preparation of ...
  • Parafunctions of triangular matrices and m-ary partitions of numbers 
    Stefluk, S.; Zatorsky, R. (Algebra and Discrete Mathematics, 2016)
    Using the machinery of paradeterminants and parapermanents developed in [2] we get new relations for some number-theoretical functions natural argument that were studied in [3].
  • Para-Grassmannian Coherent and Squeezed States for Pseudo-Hermitian q-Oscillator and their Entanglement 
    Maleki, Y. (Symmetry, Integrability and Geometry: Methods and Applications, 2011)
    In this paper, q-deformed oscillator for pseudo-Hermitian systems is investigated and pseudo-Hermitian appropriate coherent and squeezed states are studied. Also, some basic properties of these states is surveyed. The ...
  • Para-Grassmann variables and coherent states 
    Cabra, D.C.; Moreno, E.F.; Tanasă, A. (Symmetry, Integrability and Geometry: Methods and Applications, 2006)
    The definitions of para-Grassmann variables and q-oscillator algebras are recalled. Some new properties are given. We then introduce appropriate coherent states as well as their dual states. This allows us to obtain a ...
  • Parallel Computations with Large-scale Air Pollution Models 
    Dimov, I.; Farago, I.; Zlatev, Z. (2003)
    Large-scale mathematical models are very powerful tools in the efforts to provide more information and more detailed information about the pollution levels, especially about pollution levels which exceed certain critical ...
  • Parallel computing on heterogeneous Networks: Challenges and Responses 
    Lastovetsky, Al. (2004)
    In the paper, we analyse challenges associated with parallel programming for common networks of computers (NoCs) that are, unlike dedicated parallel computer systems, inherently heterogeneous and unreliable. This analysis ...
  • Parallel coupled cavity structure with constant magnets focusing system 
    Pavlov, V.M.; Shiyankov, S.V.; Ivannikov, V.I.; Chernousov, Yu.D.; Shebolaev, I.V. (Вопросы атомной науки и техники, 2001)
    Accelerator for intensive electron beam (average current up to 2 A) from energy 50 keV up to energy 3-5 MeV is offered. Accelerating structure consist of a few resonators fed parallel from one waveguide. Focusing system ...
  • Parallel implementation of italiano's incremental algorithm for dynamic updating the transitive closure 
    Nepomniaschaya, A.S. (2008)
    The transitive closure (or reachability) problem in a directed graph consists in finding whether there is a path between any two vertices. In this paper, we first study the problem of parallelization of Italiano's algorithm ...
  • Parallelisms & Lie Connections 
    Blázquez-Sanz, D.; Casale, G. (Symmetry, Integrability and Geometry: Methods and Applications, 2017)
    The aim of this article is to study rational parallelisms of algebraic varieties by means of the transcendence of their symmetries. The nature of this transcendence is measured by a Galois group built from the Picard-Vessiot ...
  • Parallel magnetotransport in multiple quantum well structures 
    Sheregii, E.M.; Ploch, D.; Marchewka, M.; Tomaka, G.; Kolek, A.; Stadler, A.; Mleczko, K.; Strupiński, W.; Jasik, A.; Jakiela, R. (Физика низких температур, 2004)
    The results of investigations of parallel magnetotransport in AlGaAs/GaAs and InGaAs/InAlAs/InP multiple quantum wells structures (MQW’s) are presented in this paper. The MQW’s were obtained by metalorganic vapour phase ...
  • Parallel Relaxational Iterative Algorithm of GMDH 
    Pavlov, A. (Індуктивне моделювання складних систем, 2014)
    The paper suggests a parallel version of the generalized relaxational iterative algorithm with recurrent computations. Parallelization using TBB library allow getting 2.28х speedup using 2 cores and 4х speedup using 4 cores ...
  • Paramagnetic centers in amorphous and microcrystalline silicon irradiated with 2 МeV electrons 
    Astakhov, O.; Finger, F.; Carius, R.; Lambertz, A.; Neklyudov, I.; Petrusenko, Yu.; Borysenko, V.; Barankov, D. (Вопросы атомной науки и техники, 2007)
    Amorphous and microcrystalline silicon are well known materials for thin film large area electronics. The defects in the material are an important issue for the device quality and the manufacturing process optimization. ...
  • Paramagnetic defects related to photoluminescence in SiOx films 
    Rudko, G.Yu.; Vorona, I.P.; Indutnyy, I.Z.; Ishchenko, S.S.; Shepeliavyi, P.E.; Yukhymchuk, V.O. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2004)
    The correlation between the photoluminescence and paramagnetic defects is studied in SiOx films grown by vacuum thermal deposition and annealed at 750 ⁰C. The as-grown samples exhibit a wide structureless EPR line centered ...

Пошук


Розширений пошук

Перегляд

Мій обліковий запис