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Перегляд Algebra and Discrete Mathematics, 2004, № 1 за назвою

Репозиторій DSpace/Manakin

Перегляд Algebra and Discrete Mathematics, 2004, № 1 за назвою

Сортувати за: Порядок: Результатів:

  • Categories of lattices, and their global structure in terms of almost split sequences 
    Rump, W. (Algebra and Discrete Mathematics, 2004)
    A major part of Iyama’s characterization of Auslander-Reiten quivers of representation-finite orders Λ consists of an induction via rejective subcategories of Λ-lattices, which amounts to a resolution of Λ as an isolated ...
  • Conic bundles over real formal power series field 
    Bazyleu, D.F.; Tikhonov, S.V.; Yanchevski, V.I. (Algebra and Discrete Mathematics, 2004)
    We examine some properties of conic bundle rational surface over real formal power series field. We focus on the following problem: When does a conic bundle with prescribed degeneration data exist? We study also an algebraic ...
  • Derived tame and derived wild algebras 
    Drozd, Y.A. (Algebra and Discrete Mathematics, 2004)
    We prove that every finite dimensional algebra over an algebraically closed field is either derived tame or derived wild. We also prove that any deformation of a derived wild algebra is derived wild.
  • Green’s relations on the deformed transformation semigroups 
    Tsyaputa, G.Y. (Algebra and Discrete Mathematics, 2004)
    Green’s relations on the deformed finite inverse symmetric semigroup ISn and the deformed finite symmetric semigroup Tn are described.
  • Minimax sums of posets and the quadratic Tits form 
    Bondarenko, V.M.; Polishchuk, A.M. (Algebra and Discrete Mathematics, 2004)
    In this paper we study the structure of infinite posets with positive Tits form. In particular, there arise posets of specific form which we call minimax sums of posets.
  • On associative algebras satisfying the identity x⁵=0 
    Shestakov, I.; Zhukavets, N. (Algebra and Discrete Mathematics, 2004)
    We study Kuzmin’s conjecture on the index of nilpotency for the variety N il₅ of associative nil-algebras of degree 5. Due to Vaughan-Lee [11] the problem is reduced to that for k-generator N il₅-superalgebras, where k ...
  • On lattices, modules and groups with many uniform elements 
    Krempa, J. (Algebra and Discrete Mathematics, 2004)
    The uniform dimension, also known as Goldie dimension, can be defined and used not only in the class of modules, but also in large classes of lattices and groups. For considering this dimension it is necessary to involve ...
  • Root vectors of the composition algebra of the Kronecker algebra 
    Chen, X. (Algebra and Discrete Mathematics, 2004)
    According to the canonical isomorphism between the positive part Uq⁺(g) of the Drinfeld–Jimbo quantum group Uq(g) and the generic composition algebra C(∆) of Λ, where the Kac–Moody Lie algebra g and the finite ...

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