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  • De Falco, M.; Musella, C. (Algebra and Discrete Mathematics, 2006)
    This paper describes the structure of groups G containing proper subgroups with non-modular subgroup lattice and such that all such subgroups are isomorphic to G.
  • Rajhi, A. (Algebra and Discrete Mathematics, 2020)
    We prove that the groups G for which the lattice of normal subgroups N(G) is factorial are exactly the UND-groups, that is the groups for which every normal subgroup have a unique normal complement, with finite length.
  • De Falco, M.; de Giovanni, F.; Musella, C. (Algebra and Discrete Mathematics, 2007)
    The structure of groups whose non-normal subgroups have a finite commutator subgroup is investigated. In particular, it is proved that if k is a positive integer and G is a locally graded group in which every non-normal ...
  • Kurdachenko, L.A.; Otal, J.; Subbotin, I.Ya. (Український математичний журнал, 2002)
    We consider BCC-groups, that is groups G with Chernikov conjugacy classes in which for every element x ∈ G the minimax rank of the divisible part of the Chernikov group G/C G(xᴳ) and the order of the corresponding factor-group ...
  • De Mari, F. (Український математичний журнал, 2004)
    Let G be a Tarski-free group such that the join of all nonmodular subgroups of G is a proper subgroup in G. It is proved that G contains a finite normal subgroup N such that the quotient group G/N has a modular subgroup lattice.
  • Dixon, M.R.; Subbotin, I.Ya. (Algebra and Discrete Mathematics, 2009)
    This paper gives a brief historical survey of results in which certain systems of subgroups of a group satisfy various finiteness conditions.
  • Russo, A.; Vincenzi, G. (Algebra and Discrete Mathematics, 2009)
    Let FC⁰ be the class of all finite groups, and for each non-negative integer n define by induction the group class FCⁿ⁺¹ consisting of all groups G such that the factor group G/CG(xG) has the property FCⁿ for all elements ...
  • Semko (Jr.), N.N. (Algebra and Discrete Mathematics, 2013)
    A subgroup H of a group G is said to be transitively normal in G, if H is normal in every subgroup K ≥ H such that H is subnormal in K. The study of radical groups, whose not finitely generated subgroups are transitively ...
  • Kurdachenko, L.A.; Semko (Jr.), N.N.; Subbotin, I.Ya. (Algebra and Discrete Mathematics, 2012)
    A subgroup H of a group G is said to be transitively normal in G, if H is normal in every subgroup K ≥ H such that H is subnormal in K. We described some infinite groups, whose non–finitely generated subgroups are transitively ...
  • M. De Falco; F. de Giovanni; Musella, C. (Algebra and Discrete Mathematics, 2009)
    This paper investigates the structure of groups in which all members of a given relevant set of subgroups are selfnormalizing. In particular, soluble groups in which every nonabelian (or every infinite non-abelian) subgroup ...
  • Javier Otal; Semko, N.N. (Algebra and Discrete Mathematics, 2009)
    Let G be a group. If S⊆G is a G-invariant subset of G, the factor-group G/CG(S) is called the cocentralizer of S in G. In this survey-paper we review some results dealing with the influence of several cocentralizers on the ...
  • Chernikov, N.S. (2006)
    Для деяких дуже широких класiв D i B ⊂ D груп автор доводить, що довiльна (неабелева) група G ∊ D (вiдповiдно, G ∊ B) задовольняє умову мiнiмальностi для (неабелевих) пiдгруп тодi i тiльки тодi, коли вона є чернiковською.
  • Babai, A.; Khosravi, B. (Український математичний журнал, 2014)
    Let G be a finite group. The prime graph of G is denoted by Γ(G). Let G be a finite group such that Γ(G)=Γ(Dn(5)), where n≥6. In the paper, as the main result, we show that if n is odd, then G is recognizable by the prime ...
  • Dixon, M.R.; Evans, M.J.; Smith, H. (Український математичний журнал, 2002)
    We briefly review some recent works on groups with the weak minimal condition on nonnilpotent subgroups. We also study the class of groups with the weak minimal condition on non-(soluble of derived length d) subgroups.
  • Nagornaya, L.L.; Bondar, V.G.; Vostretsov, Yu.Ya.; Grinyov, B.V.; Katrunov, K.A.; Martynov, V.P.; Pirogov, E.N.; Starzhinsky, N.G.; Tupitsyna, I.A. (Functional Materials, 2005)
    Discussed are the peculiarities of the oxide crystal growing by Czochralski technique, the effects of the growth atmosphere on the structure transformation extent and direction, stoichiometric disordering of the oxide ...
  • Nagorny, P.G.; Slobodyanik, N.S.; Lavrik, R.V.; Ushchapivska, T.I. (Functional Materials, 2018)
    Optimum conditions for the growing of single crystals of Li₂Mn(PO₃)₄ compound have been selected. Complete X-ray diffraction analysis has been performed to study synthesized phosphate Li₂Mn(PO₃)₄. According to its structure, ...
  • Gritsook, B.N.; Fodchoock, I.M.; Nichiy, S.V.; Paranchich, U.S.; Politanskiy, R.L. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2000)
    Cd₀.₂₅Hg₀.₇₅Se films received by laser evaporation method in conditions of static vacuum are investigated. Optimum temperature of a substrate is ascertained using structural and electrophysical measurements. It is shown ...
  • Paranchych, S.Yu.; Paranchych, L.D.; Tanasyuk, Yu.V.; Romanyuk, V.R.; Makogonenko, V.M.; Yurtsenyuk, R.M. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2003)
    Single crystals of Cd₁₋x₋yMnyHgxTe:V (х = 0.05; у = 0.03-0.07, NV = 1∙10¹⁹ cm⁻³) have been grown and their electrical and optical properties have been studied. The transmission spectra of the samples with the composition ...
  • Galashov, E.N.; Denisova, T.M.; Ivanov, I.M.; Makarov, E.P.; Mamontov, V.N.; Shlegel, V.N.; Stenin, Yu.G.; Vasiliev, Ya.V.; Zhdankov, V.N. (Functional Materials, 2010)
  • Kozhemyakin, G.N.; Ruban, R.V. (Functional Materials, 2005)
    The effective distribution coefficients for Ga in Gaₓln₁-ₓSb single crystals (х ≤ 0.2) have been calculated according the Ostrogorsky-Mueller model taking into account the experimental data. The growing procedure ...