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Перегляд Algebra and Discrete Mathematics, 2009, № 1 за датою випуску

Репозиторій DSpace/Manakin

Перегляд Algebra and Discrete Mathematics, 2009, № 1 за датою випуску

Сортувати за: Порядок: Результатів:

  • On modules over group rings of locally soluble groups for a ring of p -adic integers 
    Dashkova, O.Yu. (Algebra and Discrete Mathematics, 2009)
    The author studies the Zp∞G-module A such that Zp∞ is a ring of p-adic integers, a group G is locally soluble, the quotient module A/CA(G) is not Artinian Zp∞-module, and the system of all subgroups H≤G for which the ...
  • Tiled orders of width 3 
    Zhuravlev, V.; Zhuravlyov, D. (Algebra and Discrete Mathematics, 2009)
    We consider projective cover over tiled order and calculate the kernel of epimorphism from direct sum of submodules of distributive module to their sum.
  • Algebra in the Stone-Čech compactification: applications to topologies on groups 
    Protasov, I.V. (Algebra and Discrete Mathematics, 2009)
    For every discrete group G, the Stone-Čech compactification βG of G has a natural structure of compact right topological semigroup. Assume that G is endowed with some left invariant topology I and let τ¯ be the set of all ...
  • On action of outer derivations on nilpotent ideals of Lie algebras 
    Maksimenko, D.V. (Algebra and Discrete Mathematics, 2009)
    Action of outer derivations on nilpotent ideals of Lie algebras are considered. It is shown that for a nilpotent ideal I of a Lie algebra L over a field F the ideal I+D(I) is nilpotent, provided that charF=0 or I nilpotent ...
  • Rings of functions on non-abelian groups 
    Maxson, C.J. (Algebra and Discrete Mathematics, 2009)
    For several classes of finite nonabelian groups we investigate the structure of the ring of functions, R(C), determined by the cover C of maximal abelian subgroups. We determine the Jacobson radical J(R(C)) and the semisimple ...
  • Some classes of directoid groups 
    Gardner, B.J.; Parmenter, M.M. (Algebra and Discrete Mathematics, 2009)
    Directoid groups are 2-torsion-free abelian groups with an extra binary operation assigning upper bounds. They thus constitute a generalization of abelian l-groups and an equational substitute for directed abelian groups. ...
  • All difference family structures arise from groups 
    Boykett, T. (Algebra and Discrete Mathematics, 2009)
    Planar nearrings have been used to define classes of 2-designs since Ferrero's work in 1970. These 2-designs are a class of difference families. Recent work from Pianta has generalised Ferrero and Clay's work with planar ...
  • Prime radical of Ore extensions over δ -rigid rings 
    Bhat, V.K. (Algebra and Discrete Mathematics, 2009)
    Let R be a ring. Let σ be an automorphism of R and δ be a σ-derivation of R. We say that R is a δ-rigid ring if aδ(a)∈P(R) implies a∈P(R), a∈R; where P(R) is the prime radical of R. In this article, we find a relation ...
  • Weak comultiplication modules over a pullback of commutative local Dedekind domains 
    Reza Ebrahimi Atani; Shahabaddin Ebrahimi Atani (Algebra and Discrete Mathematics, 2009)
    The goal point of recent attempts to classify indecomposable modules over non-artinian rings has been pullback rings. The purpose of this paper is to outline a new approach to the classification of indecomposable weak ...

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