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Перегляд Algebra and Discrete Mathematics, 2012, Vol. 13, № 2 за назвою

Репозиторій DSpace/Manakin

Перегляд Algebra and Discrete Mathematics, 2012, Vol. 13, № 2 за назвою

Сортувати за: Порядок: Результатів:

  • Banakh, T.; Gavrylkiv, V. (Algebra and Discrete Mathematics, 2012)
    We find necessary and sufficient conditions on an (inverse) semigroup X under which its semigroups of maximal linked systems λ(X), filters φ(X), linked upfamilies N₂(X), and upfamilies υ(X) are inverse.
  • Drozd, Yu.A.; Skuratovskii, R.V. (Algebra and Discrete Mathematics, 2012)
    A criterion is given in order that the ideals of a one branch curve singularity form at most 2-parameter families. Namely, we present a list of plane curve singularities from the Arnold's classification which are the ...
  • Selkin, V. (Algebra and Discrete Mathematics, 2012)
    If F = F₁…Ft is the product of the formations F₁,…,Ft and F ≠ F₁…Fi−₁Fi+₁…Ft for all i = 1,…,t, then we call this product a non-cancellative factorization of the formation F. In this paper we gives a description of ...
  • Kashu, A.I. (Algebra and Discrete Mathematics, 2012)
    In the lattice L(RM) of submodules of an arbitrary left R-module RM four operation were introduced and investigated in the paper [3]. In the present work the approximations of inverse operations for two of these operations ...
  • Ballester-Bolinches, A.; Beidleman, J.C.; Feldman, A.D.; Heineken, H.; Ragland, M.F. (Algebra and Discrete Mathematics, 2012)
    In this survey paper several subgroup embedding properties related to permutability are introduced and studied.
  • Shevrin, L.N. (Algebra and Discrete Mathematics, 2012)
    The main purpose of this short survey is to show how groups of special structure, which are accepted to be called Chernikov groups, appeared in the considerations of semigroups with certain finiteness conditions. A structure ...
  • Dixon, M.R.; Kirichenko, V.V.; Kurdachenko, L.A.; Otal, J.; Semko, N.N.; Shemetkov, L.A.; Subbotin, I.Ya. (Algebra and Discrete Mathematics, 2012)
    In this survey, the authors want to show the development and continuation of some studies, in which S.N.Chernikov stood as the main originator and to demonstrate clearly the extent of influence exerted by the ideas and ...
  • Gaglione, A.M.; Lipschutz, S.; Spellman, D. (Algebra and Discrete Mathematics, 2012)
    There has been recent interest in Stallings’ Pregroups. (See [2] and [12].) This paper gives a survey of generalized pregroups. We also answer a question of Reinhold Baer [1] on pregroups and answer a generalization of ...
  • Grigorchuk, R.I.; Krylyuk, Ya.S. (Algebra and Discrete Mathematics, 2012)
    It is shown that the KNS-spectral measure of the typical Schreier graph of the action of 3-generated 2-group of intermediate growth constructed by the first author in 1980 on the boundary of binary rooted tree coincides ...
  • Автор відсутній (Algebra and Discrete Mathematics, 2012)
    On May 11, 2012, we celebrate the 100th anniversary of the birth of Sergei Nikolaevich Chernikov (1912 – 1987), a great mathematician, one of the main founders of infinite group theory.

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