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  • On features of crystal structure of semiconductor-ferroelectric Ag₃AsS₃ 
    Borovoy, N.; Gololobov, Yu.; Isaienko, G.; Salnik, A. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2013)
    The temperature dependences of the unit cell parameters a(T) and c(T) of Ag₃AsS₃ were measured by the X-ray dilatometry method with high precision within the temperature range 100 to 300 K in the dark mode and under ...
  • On features of deoxidization of CsI melt with zirconium getter 
    Datsko, Yu.N.; Rebrova, T.P.; Cherginets, V.L.; Naumenko, V.A.; Rebrov, A.L.; Mateychenko, P.V.; Vjunnik, I.N. (Functional Materials, 2016)
    Interaction of Zr getter with oxygen-containing admixtures being most abundant in molten alkali metal iodides (deoxidization) is studied. Reaction of Zr with oxide ions (in form of the corresponding alkali metal oxide) is ...
  • On features of the radiation from pulsed discharges initiated by thick wires in water 
    Fedorovich, O.A.; Voitenko, L.M. (Вопросы атомной науки и техники, 2015)
    The investigation results on the distribution of the plasma channel radiance intensity in the visible spectral region are reported. The pulsed discharge in water is initiated by the Tungsten wire (Ø 300 μm) explosion under ...
  • On fibers and accessibility of groups acting on trees with inversions 
    Mahmood, R.M.S. (Algebra and Discrete Mathematics, 2015)
    Throughout this paper the actions of groups on graphs with inversions are allowed. An element g of a group G is called inverter if there exists a tree X where G acts such that g transfers an edge of X into its inverse. ...
  • On filters and upper sets in CI-algebras 
    Piekart, B.; Walendziak, A. (Algebra and Discrete Mathematics, 2011)
    CI-algebras are a generalization of BE-algebras and dual BCK/BCI/BCH-algebras. In this paper filters of CI-algebras are considered. Given a subset of a CI-algebra, the least filter containing it is constructed. An equivalent ...
  • On Finding Dexamine thea (Amphipoda, Dexaminidae) in Ukrainian Territorial Waters (Crimea, Black Sea) 
    Grintsov, V.A. (Вестник зоологии, 2010)
    Dexamine thea Boeck, 1861 (Amphipoda, Dexaminidae), the rare species never registered in the territorial waters of Ukraine, was first found in Laspi Bay, 40 km of Sevastopol (Crimea, Black Sea). 200 amphipods were examined ...
  • On finding periodic solutions of second order difference equations in a Banach spase 
    Teplinsky, Y.V.; Semenyshyna, I.V. (Нелінійні коливання, 2001)
    With the use of the numerical-analytic method of A.M. Samoilenko and a modification of Newton’s method, we construct an approximation to the periodical solution of a difference equation in pertially ordered Banach spaces ...
  • On finite groups with Hall normally embedded Schmidt subgroups 
    Kniahina, V.N.; Monakhov, V.S. (Algebra and Discrete Mathematics, 2018)
    A subgroup H of a finite group G is said to be Hall normally embedded in G if there is a normal subgroup N of G such that H is a Hall subgroup of N. A Schmidt group is a non-nilpotent finite group whose all proper subgroups ...
  • On finite posets of injinj-finite type and their Tits forms 
    Bondarenko, V.M.; Styopochkina, M.V. (Algebra and Discrete Mathematics, 2006)
    We prove one theorem on connection between inj-finiteness of a finite poset and positive definiteness of its Tits form.
  • On finitistic dimension of stratified algebras 
    Mazorchuk, V. (Algebra and Discrete Mathematics, 2004)
    In this survey we discuss the results on the finitistic dimension of various stratified algebras. We describe what is already known, present some recent estimates, and list some open problems.
  • On Fluctuations of a Nonmonotone Marked Point Process 
    Dshalalow, J.H.; Robinson, R. (2010)
    The present article investigates a bivariate recurrent process, which can describe the behavior of a nonmonotone financial instrument observed at random times. We are able to find explicitly the joint distribution of the ...
  • On fluctuations of the Black Sea basin after the Last Glacial Maximum and Early Holocene 
    Slavova, K. (Геология и полезные ископаемые Мирового океана, 2009)
    The aim of this paper is to determine the causality between the cycles of Solar Luminosity on the one hand, and the palaeoclimatic data for the Black Sea region and the fluctuations of the Black Sea Basin on the other ...
  • On Four-Dimensional Paracomplex Structures with Norden Metrics 
    İşcan, M.; Özkan, M. (Український математичний журнал, 2015)
    We study almost paracomplex structures with Norden metric on Walker 4-manifolds and try to find general solutions for the integrability of these structures on suitable local coordinates. We also discuss para-Kähler ...
  • On Fredholm parameter-dependent boundary-value problem in Sobolev spaces 
    Atlasiuk, O.M.; Mikhailets, V.A. (Доповіді НАН України, 2020)
    We consider the most general class of linear inhomogeneous boundary-value problems for systems of r-th order ordinary differential equations whose solutions and right-hand sides belong to appropriate Sobolev spaces. ...
  • On Free Field Realizations of W(2,2)-Modules 
    Adamović, D.; Radobolja, G. (Symmetry, Integrability and Geometry: Methods and Applications, 2016)
    The aim of the paper is to study modules for the twisted Heisenberg-Virasoro algebra H at level zero as modules for the W(2,2)-algebra by using construction from [J. Pure Appl. Algebra 219 (2015), 4322-4342, arXiv:1405.1707]. ...
  • On Free Pseudo-Product Fundamental Graded Lie Algebras 
    Yatsui, T. (Symmetry, Integrability and Geometry: Methods and Applications, 2012)
    In this paper we first state the classification of the prolongations of complex free fundamental graded Lie algebras. Next we introduce the notion of free pseudo-product fundamental graded Lie algebras and study the ...
  • On free vector balleans 
    Protasov, I.; Protasova, K. (Algebra and Discrete Mathematics, 2019)
    A vector balleans is a vector space over R endowed with a coarse structure in such a way that the vector operations are coarse mappings. We prove that, for every ballean (X, E), there exists the unique free vector ballean ...
  • On free vibrations of a thick periodic junction with concentrated masses on the fine rods 
    Mel'nyk, T. A. (Нелінійні коливання, 1999)
    Доведенi теореми про збiжнiсть та асимптотичнi оцiнки (коли ε → 0) для власних значень та власних функцiй крайової задачi для оператора Лапласа в плоскому густому перiодичному з’єднаннi з концентрованою масою. Це з’єднання ...
  • On Frobenius full matrix algebras with structure systems 
    Fujita, H.; Sakai, Y.; Simson, D. (Algebra and Discrete Mathematics, 2007)
    Let n ≥ 2 be an integer. In [5] and [6], an n × n A-full matrix algebra over a field K is defined to be the set Mn(K) of all square n × n matrices with coefficients in K equipped with a multiplication defined by a ...
  • On fully wild categories of representations of posets 
    Kasjan, S. (Algebra and Discrete Mathematics, 2006)
    Assume that I is a finite partially ordered set and k is a field. We prove that if the category prin(kI) of prinjective modules over the incidence k-algebra kI of I is fully k-wild then the category fpr(I,k) of finite ...