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Перегляд Algebra and Discrete Mathematics, 2002, № 1 за назвою

Репозиторій DSpace/Manakin

Перегляд Algebra and Discrete Mathematics, 2002, № 1 за назвою

Сортувати за: Порядок: Результатів:

  • Bounds for graphs of given girth and generalized polygons 
    Benkherouf, L.; Ustimenko, V. (Algebra and Discrete Mathematics, 2002)
    In this paper we present a bound for bipartite graphs with average bidegrees η and ξ satisfying the inequality η ≥ ξ α, α ≥ 1. This bound turns out to be the sharpest existing bound. Sizes of known families of finite ...
  • Metrizable ball structures 
    Protasov, I.V. (Algebra and Discrete Mathematics, 2002)
    A ball structure is a triple (X, P, B), where X, P are nonempty sets and, for any x ∈ X, α ∈ P, B(x, α) is a subset of X, x ∈ B(x, α), which is called a ball of radius α around x. We characterize up to isomorphism the ...
  • On dispersing representations of quivers and their connection with representations of bundles of semichains 
    Bondarenko, V.M. (Algebra and Discrete Mathematics, 2002)
    In the paper we discuss the notion of “dispersing representation of a quiver” and give, in a natural special case, a criterion for the problem of classifying such representations to be tame. In proving the criterion we ...
  • On groups of finite normal rank 
    Dashkova, O.Yu. (Algebra and Discrete Mathematics, 2002)
    In this article the investigation of groups of finite normal rank is continued. The finiteness of normal rank of nonabelian p-group G is proved where G has a normal elementary abelian p-subgroup A for which quotient group ...
  • On the finite state automorphism group of a rooted tree 
    Lavrenyuk, Y. (Algebra and Discrete Mathematics, 2002)
    The normalizer of the finite state automorphism group of a rooted homogeneous tree in the full automorphism group of this tree was investigated. General form of elements in the normalizer was obtained and countability ...
  • Radical theory in BCH-algebras 
    Dudek, W.A.; Young Bae Jun (Algebra and Discrete Mathematics, 2002)
    The notion of k-nil radical in BCH-algebras is defined, and related properties are investigated.
  • Tiled orders over discrete valuation rings, finite Markov chains and partially ordered sets. I 
    Chernousova, Zh.T.; Dokuchaev, M.A.; Khibina, M.A.; Kirichenko, V.V.; Miroshnichenko, S.G.; Zhuravlev, V.N. (Algebra and Discrete Mathematics, 2002)
    We prove that the quiver of tiled order over a discrete valuation ring is strongly connected and simply laced. With such quiver we associate a finite ergodic Markov chain. We introduce the notion of the index in A of a ...
  • Virtual endomorphisms of groups 
    Nekrashevych, V. (Algebra and Discrete Mathematics, 2002)
    Dedicated to V. V. Kirichenko on the occasion of his 60th birthday

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