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Перегляд Algebra and Discrete Mathematics, 2020, Vol. 30, № 2 за назвою

Репозиторій DSpace/Manakin

Перегляд Algebra and Discrete Mathematics, 2020, Vol. 30, № 2 за назвою

Сортувати за: Порядок: Результатів:

  • Normal automorphisms of the metabelian product of free abelian Lie algebras 
    Öğüşlü, N.Ş. (Algebra and Discrete Mathematics, 2020)
    Let M be the metabelian product of free abelian Lie algebras of finite rank. In this study we prove that every normal automorphism of M is an IA-automorphism and acts identically on M′.
  • Normal form in Hecke-Kiselman monoids associated with simple oriented graphs 
    Aragona, R.; D'Andrea, A. (Algebra and Discrete Mathematics, 2020)
    We generalize Kudryavtseva and Mazorchuk’s concept of a canonical form of elements [9] in Kiselman’s semigroups to the setting of a Hecke-Kiselman monoid HKГ associated with a simple oriented graph Г. We use confluence ...
  • On a product of two formational tcc-subgroups 
    Trofimuk, A. (Algebra and Discrete Mathematics, 2020)
    A subgroup A of a group G is called tcc-subgroup in G, if there is a subgroup T of G such that G = AT and for any X ≤ A and Y ≤ T there exists an element u ∈ hX, Y i such that XYᵘ ≤ G. The notation H ≤ G means that H is ...
  • On the spectrum of Cayley graphs 
    Ghorbani, M.; Songhori, M. (Algebra and Discrete Mathematics, 2020)
    The set of eigenvalues of the adjacency matrix of a graph is called the spectrum of it. In the present paper, we introduce the spectrum of Cayley graphs of order pqr in terms of character table, where p, q, r are prime ...
  • Some properties of E(G,W,FTG) and an application in the theory of splittings of groups 
    Fanti, E.L.C.; Silva, L.S. (Algebra and Discrete Mathematics, 2020)
    Let us consider W a G-set and M a Z₂G-module, where G is a group. In this paper we investigate some properties of the cohomological the theory of splittings of groups. Namely, we give a proof of the invariant E(G,W,M), ...
  • Some remarks about minimal prime ideals of skew Poincaré-Birkhoff-Witt extensions 
    Niño, A.; Reyes, A. (Algebra and Discrete Mathematics, 2020)
    In this paper, we characterize the minimal prime ideals of skew PBW extensions over several classes of rings. We unify different results established in the literature for Ore extensions, and extend all of them to a several ...
  • Some results on the main supergraph of finite groups 
    Asboei, A.K.; Salehi, S.S. (Algebra and Discrete Mathematics, 2020)
    Let G be a finite group. The main supergraph S(G) is a graph with vertex set G in which two vertices x and y are adjacent if and only if o(x) | o(y) or o(y) | o(x). In this paper, we will show that G ≅ PSL(2, p) or PGL(2, ...

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