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Перегляд Algebra and Discrete Mathematics, 2007, № 4 за датою випуску

Репозиторій DSpace/Manakin

Перегляд Algebra and Discrete Mathematics, 2007, № 4 за датою випуску

Сортувати за: Порядок: Результатів:

  • On quantales of preradical Bland filters and differential preradical filters 
    Melnyk, I. (Algebra and Discrete Mathematics, 2007)
    We prove that the set of all Bland preradical filters over an arbitrary differential ring form a quantale with respect to meets where the role of multiplication is played by the usual Gabriel pro-duct of filters. A subset ...
  • On one-sided Lie nilpotent ideals of associative rings 
    Luchko, V.S.; Petravchuk, A.P. (Algebra and Discrete Mathematics, 2007)
    We prove that a Lie nilpotent one-sided ideal of an associative ring R is contained in a Lie solvable two-sided ideal of R. An estimation of derived length of such Lie solvable ideal is obtained depending on the class of ...
  • Discrete limit theorems for Estermann zeta-functions. I 
    Laurincikas, A.; Macaitiene, R. (Algebra and Discrete Mathematics, 2007)
    A discrete limit theorem in the sense of weak convergence of probability measures on the complex plane for the Estermann zeta-function is obtained. The explicit form of the limit measure in this theorem is given.
  • On differential preradicals 
    Horbachuk, O.; Komarnytskyi, M.; Maturin, Y. (Algebra and Discrete Mathematics, 2007)
    Differential preradicals and differential preradical filters are considered. Differentially closed fields are investigated.
  • Serial piecewise domains 
    Gubareni, N.; Khibina, M. (Algebra and Discrete Mathematics, 2007)
    A ring A is called a piecewise domain with respect to the complete set of idempotents {e1,e2,…,em} if every nonzero homomorphism eiA→ejA is a monomorphism. In this paper we study the rings for which conditions of being ...
  • Exponent matrices and topological equivalence of maps 
    Fedorenko, V.; Kirichenko, V.; Plakhotnyk, M. (Algebra and Discrete Mathematics, 2007)
    Conjugate classes of continuous maps of the interval [0,1] into itself, whose iterations form a finite group are described. For each of possible groups of iterations one to one correspondence between conjugate classes of ...
  • On various rank conditions in infinite groups 
    Dixon, M.R.; Kurdachenko, L.A.; Subbotin, I.Ya. (Algebra and Discrete Mathematics, 2007)
    In the current survey the authors consider some ofthe main theorems concerning groups satisfying certain rank con-ditions. They present these theorems starting with recently estab-lished results. This order of exposition ...
  • On linear algebraic groups over pseudoglobal fields 
    Andriychuk, V. (Algebra and Discrete Mathematics, 2007)
    Some properties of R–equivalence and weak approximation in linear algebraic group over global field are generalized to the case of linear algebraic group over an algebraic function field in one variable with pseudofinite ...
  • An application of the concept of a generalized central element 
    Al-Sharo, Kh.A.; Shemetkova, O. (Algebra and Discrete Mathematics, 2007)
    With the help of the concept of a generalized central element we study finite groups with the given system of S-quasinormally embedded subgroups.
  • To the 65th birthday of Professor Vladimir Kirichenko 
    Автор відсутній (Algebra and Discrete Mathematics, 2007)
    This is a special issue of the journal dedicated to the 65th birthday of an outstanding Ukrainian mathematician, one of the founders of our journal Professor Vladimir Kirichenko
  • Chronicle 
    Автор відсутній (Algebra and Discrete Mathematics, 2007)
    The editorial board of the journal “Algebra and Discrete Mathematics” congratulates Yu. S. Samoylenko, Yu. A. Drozd, V. M. Bondarenko, V. V. Lyubashenko, V. L. Ostrovskiy, V. V. Sergeychuk and V. V. Kirichenko with awarding ...
  • On Stone sublattices of the lattice of totally local Fitting classes 
    Skiba, A.N.; Vorob’ev, N.N. (Algebra and Discrete Mathematics, 2007)
    Totally local Fitting classes with a Stone lattice of totally local Fitting subclasses are described.
  • Filtered and graded Procesi extensions of rings 
    Radwan, A.E. (Algebra and Discrete Mathematics, 2007)
    In this paper, we introduce filtered and graded Procesi extensions of filtered and graded rings as a natural modification of Procesi extensions of rings. We show that these extensions behave well from the geometric point of view.
  • Wreath product of metric spaces 
    Oliynyk, B. (Algebra and Discrete Mathematics, 2007)
    This paper describes a new construction of wreath product of metric spaces. The group of isometries of the wreath product of metric spaces is calculated.

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