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Перегляд Algebra and Discrete Mathematics, 2020, Vol. 29, Vol. 30 за датою випуску

Репозиторій DSpace/Manakin

Перегляд Algebra and Discrete Mathematics, 2020, Vol. 29, Vol. 30 за датою випуску

Сортувати за: Порядок: Результатів:

  • On some topics in the theory of infinite dimensional linear groups 
    Dixon, M.R.; Kurdachenko, L.A.; Semko, N.N.; Subbotin, I.Ya. (Algebra and Discrete Mathematics, 2020)
    In this paper we present a synopsis of some recent results concerned with infinite dimensional liner groups, including generalizations of irreducibility, the central dimension of a linear group, groups with finite dimensional ...
  • A new characterization of finite σ-soluble PσT-groups 
    Adarchenko, N.M. (Algebra and Discrete Mathematics, 2020)
    Let σ = {σi | i ∈ I} be a partition of the set of all primes ℙ and G a finite group. G is said to be σ-soluble if every chief factor H/K of G is a σᵢ-group for some i = i(H/K). A set H of subgroups of G is said to be a ...
  • An OD-characterizable class of simple groups 
    Akbari, M.; Chen, X.Y.; Moghaddamfar, A.R. (Algebra and Discrete Mathematics, 2020)
    It is proved that nonabelian finite simple groups S with max π(S) = 37 are uniquely determined by their order and degree pattern in the class of all finite groups.
  • Leibniz algebras with absolute maximal Lie subalgebras 
    Biyogmam, G.R.; Tcheka, C. (Algebra and Discrete Mathematics, 2020)
    A Lie subalgebra of a given Leibniz algebra is said to be an absolute maximal Lie subalgebra if it has codimension one. In this paper, we study some properties of non-Lie Leibniz algebras containing absolute maximal Lie ...
  • Finite groups with semi-subnormal Schmidt subgroups 
    Kniahina, V.N.; Monakhov, V.S. (Algebra and Discrete Mathematics, 2020)
    A Schmidt group is a non-nilpotent group in which every proper subgroup is nilpotent. A subgroup A of a group G is semi-normal in G if there exists a subgroup B of G such that G = AB and AB1 is a proper subgroup of G for ...
  • On the non–periodic groups, whose subgroups of infinite special rank are transitively normal 
    Kurdachenko, L.A.; Subbotin, I.Ya.; Velychko, T.V. (Algebra and Discrete Mathematics, 2020)
    This paper devoted to the non-periodic locally generalized radical groups, whose subgroups of infinite special rank are transitively normal. We proved that if such a group G includes an ascendant locally nilpotent subgroup ...
  • Locally soluble groups with the restrictions on the generalized norms 
    Lukashova, T. (Algebra and Discrete Mathematics, 2020)
    The author studies groups with given restrictions on norms of decomposable and Abelian non-cyclic subgroups. The properties of non-periodic locally soluble groups, in which such norms are nonidentity and have the identity ...
  • Group of continuous transformations of real interval preserving tails of G₂-representation of numbers 
    Pratsiovytyi, M.V.; Lysenko, I.M.; Maslova, Yu.P. (Algebra and Discrete Mathematics, 2020)
    In the paper, we consider a two-symbol system of encoding for real numbers with two bases having different signs g₀ < 1 and g₁ = g₀ − 1. Transformations (bijections of the set to itself) of interval [0, g₀] preserving tails ...
  • On some non-periodic groups whose cyclic subgroups are GNA-subgroups 
    Pypka, A A. (Algebra and Discrete Mathematics, 2020)
    In this paper we obtain the description of nonperiodic locally generalized radical groups whose cyclic subgroups are GNA-subgroups.
  • Linear groups saturated by subgroups of finite central dimension 
    Semko, N.N.; Skaskiv, L.V.; Yarovaya, O.A. (Algebra and Discrete Mathematics, 2020)
    Let F be a field, A be a vector space over F and G be a subgroup of GL(F,A). We say that G has a dense family of subgroups, having finite central dimension, if for every pair of subgroups H, K of G such that H ≤ K and H ...
  • Sets of prime power order generators of finite groups 
    Stocka, A. (Algebra and Discrete Mathematics, 2020)
    A subset X of prime power order elements of a finite group G is called pp-independent if there is no proper subset Y of X such that 〈Y,Ф(G)〉 = 〈X,Ф(G)〉, where Ф(G) is the Frattini subgroup of G. A group G has property Bpp ...
  • On p-nilpotency of finite group with normally embedded maximal subgroups of some Sylow subgroups 
    Trofimuk, A. (Algebra and Discrete Mathematics, 2020)
    Let G be a finite group and P be a p-subgroup of G. If P is a Sylow subgroup of some normal subgroup of G, then we say that P is normally embedded in G. Groups with normally embedded maximal subgroups of Sylow p-subgroup, ...
  • Igor Ya. Subbotin (dedicated to 70th Birthday) 
    Автор відсутній (Algebra and Discrete Mathematics, 2020)
    On March 25, 2020, Professor Igor Ya. Subbotin turned 70.
  • Computing bounds for the general sum-connectivity index of some graph operations 
    Akhter, S.; Farooq, R. (Algebra and Discrete Mathematics, 2020)
    In this paper, we compute the bounds for general sum-connectivity index of several graph operations. These operations include corona product, cartesian product, strong product, composition, join, disjunction and symmetric ...
  • Generalized 2-absorbing and strongly generalized 2-absorbing second submodules 
    ‎Ansari-Toroghy, H.; Farshadifar, F.; ‎Maleki-Roudposhti, S. (Algebra and Discrete Mathematics, 2020)
    In this paper, we will introduce the concepts of generalized 2-absorbing and strongly generalized 2-absorbing second submodules of modules over a commutative ring and obtain some related results.
  • Morita equivalent unital locally matrix algebras 
    Bezushchak, O.; Oliynyk, B. (Algebra and Discrete Mathematics, 2020)
    We describe Morita equivalence of unital locally matrix algebras in terms of their Steinitz parametrization. Two countable-dimensional unital locally matrix algebras are Morita equivalent if and only if their Steinitz ...
  • On the structure of Leibniz algebras whose subalgebras are ideals or core-free 
    Chupordia, V.A.; Kurdachenko, L.A.; Semko, N.N. (Algebra and Discrete Mathematics, 2020)
    An algebra L over a field F is said to be a Leibniz algebra (more precisely, a left Leibniz algebra) if it satisfies the Leibniz identity: [[a, b], c] = [a, [b, c]]−[b, [a, c]] for all a, b, c ∊ L. Leibniz algebras are ...
  • The containment poset of type A Hessenberg varieties 
    Drellich, E. (Algebra and Discrete Mathematics, 2020)
    Flag varieties are well-known algebraic varieties with many important geometric, combinatorial, and representation theoretic properties. A Hessenberg variety is a subvariety of a flag variety identified by two parameters: ...
  • Fedir Mykolayovych Lyman (22.02.1941–13.06.2020) 
    Автор відсутній (Algebra and Discrete Mathematics, 2020)
    The famous Ukrainian mathematician and educator, Doctor of Physical and Mathematical Sciences, Professor Fedir Mykolayovych Lyman passed away on June 13, 2020 after a long illness.
  • Leonid A. Kurdachenko (dedicated to 70th Birthday) 
    Автор відсутній (Algebra and Discrete Mathematics, 2020)
    Leonid A. Kurdachenko is definitely one of the most productive group theorists. His list of publications consists of more than 250 journal articles published in major mathematics journals in many countries including Ukraine, ...

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