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  • Mancini, F.; Avella, A. (Condensed Matter Physics, 2006)
    We present the Composite Operator Method (COM) as a modern approach to the study of strongly correlated electronic systems, based on the equation of motion and Green’s function method. COM uses propagators of composite ...
  • Liang, C.; Wei, K.; Ye, B.J.; Wen, H.M.; Zhou, X.Y.; Han, R.D. (Физика низких температур, 2011)
    The elementary excitation spectrum of a two-component Bose–Einstein condensate is obtained by Green’s function method. It is found to have two branches. In the long-wave limit, the two branches of the excitation spectrum ...
  • Stasyuk, I.V.; Hera, O.B. (Condensed Matter Physics, 2003)
    The asymmetric Hubbard model is used in investigating the lattice gas of the moving particles of two types. The model is considered within the dynamical mean-field method. The effective single-site problem is formulated in ...
  • Tsyaputa, G.Y. (Algebra and Discrete Mathematics, 2004)
    Green’s relations on the deformed finite inverse symmetric semigroup ISn and the deformed finite symmetric semigroup Tn are described.
  • Changphas, Th.; Denecke, K. (Algebra and Discrete Mathematics, 2003)
    Hypersubstitutions are mappings which are used to define hyperidentities and solid varieties. In this paper we will show that the set of all hypersubstitutions of a given type forms a seminearring. We will give a full ...
  • Zaletok, S.; Gulua, L.; Wicker, L.; Shlyakhovenko, V.; Gogol, S.; Orlovsky, O.; Karnaushenko, O.; Verbinenko, A.; Milinevska, V.; Samoylenko, O.; Todor, I.; Turmanidze, T. (Experimental Oncology, 2015)
    Aim: To evaluate antitumor effect of plant polyphenol extracts from green tea, red wine lees and/or lemon peel alone and in combination with antitumor drugs on the growth of different transplanted tumors in experimental ...
  • Shelestov, A.Ju.; Kussul, N.N.; Skakun, S.V. (2006)
    In a paper simulation modelling of Grid infrastructure is carried out in order to investigate and analyze its productivity. For this purpose, GridSim modelling package is used. An approach based on the operational analysis ...
  • Судаков, О.О.; Бойко, Ю.В. (2006)
    GRID – це форма розподілених обчислень, що передбачає спільне використання та керування обчислювальними ресурсами, та ресурсами збереження даних в організаціях, які можуть бути географічно розподіленими та динамічно ...
  • Петренко, А.І. (2008)
    Обговорюються відмінності застосувань методів Data Mining від класичних статистичних методів аналізу і OLAP-систем. Розглядаються типи закономірностей, які виявляються цими методами у процесі розв’язання різноманітних задач ...
  • Автор відсутній (Experimental Oncology, 2014)
    Ukrainian oncology has suffered an irretrievable loss. Outstanding Ukrainian oncologist and surgeon, Hero of Ukraine, Honored Science and Technology Worker of Ukraine, general director of Donetsk Regional Anticancer Center, ...
  • Vinnikov, D.V.; Shulgin, N.A.; Katrechko, V.V.; Yuferov, V.B.; Sokolenko, V.I.; Tkachev, V.I.; Ponomarev, A.N.; Buravilov, I.V. (Вопросы атомной науки и техники, 2016)
    Consideration is given to the three methods used for the grinding of materials simulating spent nuclear fuel, in particular underwater spark discharges, the static compression and the laser sputtering. These methods ...
  • Gerdt, V.P.; Blinkov, Y.A.; Mozzhilkin, V.V. (Symmetry, Integrability and Geometry: Methods and Applications, 2006)
    In this paper we present an algorithmic approach to the generation of fully conservative difference schemes for linear partial differential equations. The approach is based on enlargement of the equations in their integral ...
  • Борсукевич, Л.М. (Український ботанічний журнал, 2010)
    Новый для флоры Украины вид Groenlandia densa (L.) Fourr. обнаружен в пруду г. Борислав. Дано его морфологическое описание, проанализировано географическое распространение, представлена экологическая характеристика местообитания.
  • Mattei, E.; Links, J. (Symmetry, Integrability and Geometry: Methods and Applications, 2013)
    We introduce a Hamiltonian for two interacting su(2) spins. We use a mean-field analysis and exact Bethe ansatz results to investigate the ground-state properties of the system in the classical limit, defined as the limit ...
  • Mryglod, I.M.; Bzovska, I.S. (Condensed Matter Physics, 2007)
    Based on simple lattice models of catalytic carbon dioxide synthesis from oxygen and carbon monoxide, phase diagrams are investigated at temperature T = 0 by incorporating the nearest-neighbor interactions on a catalyst ...
  • Didukh, L.; Kramar, O. (Condensed Matter Physics, 2003)
    The present paper considers the ground state ferromagnetic ordering in a generalized Hubbard model with correlated hopping and interatomic exchange interaction in the case of strong correlations at non-integer band filling. ...
  • Verkholyak, T.; Strečka, J. (Condensed Matter Physics, 2013)
    The quantum spin-1/2 two-leg ladder with an anisotropic XYZ Heisenberg intra-rung interaction and Ising inter-rung interactions is treated by means of a rigorous approach based on the unitary transformation. The particular ...
  • Paul, S.; Ghosh, A.K. (Condensed Matter Physics, 2017)
    Ground state properties, dispersion relations and scaling behaviour of spin gap of a bond alternating spin- 1/2 anisotropic Heisenberg chain have been studied where the exchange interactions on alternate bonds are ...
  • Dinh, T.-C.; Folk, R. (Condensed Matter Physics, 2009)
    Anisotropic antiferromagnets in an external magnetic field show a rich variety of different ground states meeting in transition lines and multicritical points. We study the dependence of the ground states of these systems ...
  • Drozd, Y.A. (Algebra and Discrete Mathematics, 2008)
    We consider actions of groups on categories and bimodules, the related crossed group categories and bimodules, and prove for them analogues of the result know for representations of crossed group algebras and categories.