Digital Repository of Luhansk Taras Shevchenko National University

Browsing Журнал "Алгебра и дискретная математика" ("Algebra and Discrete Mathematics") by Title

Browsing Журнал "Алгебра и дискретная математика" ("Algebra and Discrete Mathematics") by Title

Sort by: Order: Results:

  • Maximality of affine group, and hidden graph cryptosystems 
    Ustimenko, Vasiliy A. (Луганский национальный университет им. Т. Шевченко, 2005)
    We describe a new algebraic-combinatorial method of public key encryption with a certain similarity to the well known Imai-Matsumoto. We use the general idea to treat vertices of a linguistic graph (see [21] and further ...
  • Metrizable ball structures 
    Protasov, I.V. (Луганский национальный университет им. Т. Шевченко, 2002-09-24)
  • Minimax sums of posets and the quadratic Tits form 
    Bondarenko, Vitalij M.; Polishchuk, Andrej M. (Луганский национальный университет им. Т. Шевченко, 2003-11-18)
    Dedicated Michael Ringel on the occasion of his sixtieth birthday
  • Miniversal deformations of chains of linear mappings 
    Gaiduk, T. N.; Sergeichuk, V. V.; Zharko, N. A. (Луганский национальный университет им. Т. Шевченко, 2005)
    V.I. Arnold gave a miniversal deformation of matrices of linear operators; that is, a simple canonical form, to which not only a given square matrix A, but also the family of all matrices close to A, can be reduced by ...
  • Module decompositions via Rickart modules 
    Harmanci, A.; Ungor, B. (2018)
    This work is devoted to the investigation of module decompositions which arise from Rickart modules, socle and radical of modules. In this regard, the structure and several illustrative examples of inverse split modules ...
  • Modules in which every surjective endomorphism has a δ-small kernel 
    Atani, S.E.; Khoramdel, M.; Pishhesar, S.D. (ДЗ "ЛНУ імені Тараса Шевченка", 2018)
    Hopfian modules, δ-Hopfian modules. In this paper, we introduce the notion of δ-Hopfian modules. We give some properties of these modules and provide a characterization of semisimple rings in terms of δ-Hopfian modules by ...
  • Modules which have a rad-supplement that is a direct summand in every extension 
    Türkmen, B.N. (ДЗ "ЛНУ імені Тараса Шевченка", 2018)
    In this paper, we introduce the concept of mod- ules with the properties (RE) and (SRE), and we provide various properties of these modules. In particular, we prove that a semisimple module M is Rad-supplementing if ...
  • Multi-algebras from the viewpoint of algebraic logic 
    Cirulis, Janis (Луганский национальный университет им. Т. Шевченко, 2002-10-09)
  • Multiplicative orders of elements in Conway’s towers of finite fields 
    Popovych, R . (ДЗ "ЛНУ імені Тараса Шевченка", 2018)
    We give a lower bound on multiplicative ordersof certain elements in defined by Conway towers of finite fields ofcharacteristic 2 and also formulate a condition under that these elements are primitive.
  • N – real fields 
    Feigelstock, Shalom (Луганский национальный университет им. Т. Шевченко, 2003-03-03)
  • Neighborhood-prime labeling of some product graphs 
    Patel, S. K.; Shrimali, N. P. (ДЗ "ЛНУ імені Тараса Шевченка", 2018)
    We have introduced the concept of neighborhood- prime labeling and investigated it for paths, cycles, wheels and union of such graphs earlier. In this paper, we construct neighborhood- prime labelings for graphs that ...
  • On 2-state Mealy automata of polynomial growth 
    Reznykov, I. I. (Луганский национальный университет им. Т. Шевченко, 2003)
  • On a graph isomorphic to its intersection graph: self-graphoidal graphs 
    Das, P.K.; Singh, K.R. (ДЗ "ЛНУ імені Тараса Шевченка", 2018)
    Abstract . A graph G is called a graphoidal graph if there exists a graph H and a graphoidal cover ψ of H such that G ∼= Ω(H, ψ). Then the graph G is said to be self-graphoidal if it is isomorphic to one of its graphoidal ...
  • On a group theoretical construction of expanding graphs 
    Ustimenko, Vasyl A. (Луганский национальный университет им. Т. Шевченко, 2003-08-05)
  • On application of linear algebra in classification cubic s-regular graphs of order 28p 
    Imani, A .; Mehdipoor, N.; Talebi, A. A. (2018)
    A graph is s-regular if its automorphism group acts regularly on the set of s-arcs. In this paper, by applying concept linear algebra, we classify the connected cubic s-regular graphs of order 28p for each s > 1, and prime p.
  • On associative algebras satisfying the identity x5 = 0 
    Shestakov, Ivan; Zhukavets, Natalia (Луганский национальный университет им. Т. Шевченко, 2004)
  • On autotopies and automorphisms of n-ary linear quasigroups 
    Marini, Alberto; Shcherbacov, Victor (Луганский национальный университет им. Т. Шевченко, 2004)
    In this article we study structure of autotopies, automorphisms, autotopy groups and automorphism groups of n- ary linear quasigroups. We find a connection between automorphism groups of some special kinds of n-ary ...
  • On bounded m-reducibilities 
    Belyaev, Vladimir N. (Луганский национальный университет им. Т. Шевченко, 2005)
    Conditions for classes F1, F0 of non-decreasing total one-place arithmetic functions to define reducibility m [R1 R0 ] {(A,B)|A,B N & (9 r.f. h)(9f1 2 F1)(9f0 2 F0) [A h m B & f0 E h E f1]} where k E l means that ...
  • On certain families of sparse numerical semigroups with Frobenius number even 
    Tizziotti, G.; Villanueva, j. (ДЗ "ЛНУ імені Тараса Шевченка", 2019)
    This paper is about sparse numerical semigroups and applications in the Weierstrass semigroups theory. We describe and find the genus of certain families of sparse numerical semigroups with Frobenius number even and we ...
  • On certain homological invariant and its relation with Poincaré duality pairs 
    Andrade, M. G. C.; Gazon, A. B.; Lima, A. F. (ДЗ "ЛНУ імені Тараса Шевченка", 2018)
    Let G be a group, S = {Si , i ∈ I} a non empty family of (not necessarily distinct) subgroups of infinite index in G and M a Z2G-module. In [4] the authors defined a homological invariant E∗(G, S, M), which is ...

Search DSpace


Advanced Search

Browse

My Account