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Перегляд Algebra and Discrete Mathematics, 2004, № 2 за датою випуску

Репозиторій DSpace/Manakin

Перегляд Algebra and Discrete Mathematics, 2004, № 2 за датою випуску

Сортувати за: Порядок: Результатів:

  • Finite group with given c-permutable subgroups 
    Ahmad Alsheik Ahmad (Algebra and Discrete Mathematics, 2004)
    Following [1] we say that subgroups H and T of a group G are c-permutable in G if there exists an element x ∈ G such that HTˣ = TˣH. We prove that a finite soluble group G is supersoluble if and only if every maximal ...
  • Some applications of Hasse principle for pseudoglobal fields 
    Andriychuk, V. (Algebra and Discrete Mathematics, 2004)
    Some corollaries of the Hasse principle for Brauer group of a pseudoglobal field are obtained. In particular we prove Hasse-Minkowski theorem on quadratic forms over pseudoglobal field and the Hasse principle for quadratic ...
  • A note to my paper “Multi-algebras from the viewpoint of algebraic logic” 
    Cırulis, J. (Algebra and Discrete Mathematics, 2004)
    The definition of a resolvent, introduced in the paper mentioned in the title, is simplified, and some misprints in that paper are corrected.
  • On the Tits alternative for some generalized triangle groups 
    Beniash-Kryvets, V.; Barkovich, O. (Algebra and Discrete Mathematics, 2004)
    In the paper Rosenberger’s conjecture is proved for groups T(2, l, 2, R) with l = 6, 12, 30, 60 and some special groups T(3, 4, 2, R). Remove selected
  • Groups, in which almost all subgroups are near to normal 
    Semko, M.M.; Kuchmenko, S.M. (Algebra and Discrete Mathematics, 2004)
    A subgroup H of a group G is said to be nearly normal, if H has a finite index in its normal closure. These subgroups have been introduced by B.H. Neumann. In a present paper is studied the groups whose non polycyclic ...
  • Generalized equivalence of collections of matrices and common divisors of matrices 
    Petrychkovych, V.M. (Algebra and Discrete Mathematics, 2004)
    The collections (A1, ..., Ak) and (B1, ..., Bk) of matrices over an adequate ring are called generalized equivalent if Ai = UBiVi for some invertible matrices U and Vi , i = 1, ..., k. Some conditions are established ...
  • On autotopies and automorphisms of n-ary linear quasigroups 
    Marini, A.; Shcherbacov, V. (Algebra and Discrete Mathematics, 2004)
    In this article we study structure of autotopies, automorphisms, autotopy groups and automorphism groups of nary linear quasigroups. We find a connection between automorphism groups of some special kinds of n-ary ...
  • Torsion-free groups with every proper homomorphic image an N₁-group 
    Ercan, S. (Algebra and Discrete Mathematics, 2004)
    In this article it is proved that a torsion-free locally nilpotent groups with non-trivial Fitting subgroup and every proper homomorphic image an N₁-group is an N₁-group(and so it is nilpotent).
  • On growth of the inverse semigroup of partially defined co–finite automorphisms of integers 
    Bezushchak, O. (Algebra and Discrete Mathematics, 2004)
    The inverse semigroup of partially defined co– finite automorphisms of integers is considered. This semigroup is presented by generators and defining relations and its growth function is described.
  • Differentially trivial and rigid right semi-artinian rings 
    Artemovych, O.D. (Algebra and Discrete Mathematics, 2004)
    We obtain a characterization of right semi-artinian rings which have only trivial derivations and prove that a rigid (i.e. has only the trivial ring endomorphisms) right semi-artinian ring R is a field or isomorphic to ...

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