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Перегляд Algebra and Discrete Mathematics, 2017, Vol. 23, № 2 за назвою

Репозиторій DSpace/Manakin

Перегляд Algebra and Discrete Mathematics, 2017, Vol. 23, № 2 за назвою

Сортувати за: Порядок: Результатів:

  • Nonuniqueness of semidirect decompositions for semidirect products with directly decomposable factors and applications for dihedral groups 
    Daugulis, P. (Algebra and Discrete Mathematics, 2017)
    Nonuniqueness of semidirect decompositions of groups is an insufficiently studied question in contrast to direct decompositions. We obtain some results about semidirect decompositions for semidirect products with factors ...
  • On groups with biprimary subgroups of even order 
    Sokhor, I. (Algebra and Discrete Mathematics, 2017)
    We investigate groups in which maximal subgroups of even order are primary or biprimary. We also research soluble groups with restriction on a number of prime devisors of some proper subgroup orders. We give applications ...
  • On new multivariate cryptosystems with nonlinearity gap 
    Ustimenko, V. (Algebra and Discrete Mathematics, 2017)
    The pair of families of bijective multivariate maps of kind Fn and Fn⁻¹ on affine space Kⁿ over finite commutative ring K given in their standard forms has a nonlinearity gap if the degree of Fn is bounded from above by ...
  • On recurrence in G-spaces 
    Protasov, I.V.; Protasova, K.D. (Algebra and Discrete Mathematics, 2017)
    We introduce and analyze the following general concept of recurrence. Let G be a group and let X be a G-space with the action G×X⟶X, (g,x)⟼gx. For a family F of subset of X and A∈F, we denote ΔF(A)={g∈G:gB⊆A for some B∈F, ...
  • On unicyclic graphs of metric dimension 2 
    Dudenko, M.; Oliynyk, B. (Algebra and Discrete Mathematics, 2017)
    A metric basis S of a graph G is the subset of vertices of minimum cardinality such that all other vertices are uniquely determined by their distances to the vertices in S. The metric dimension of a graph G is the ...
  • Profinite closures of the iterated monodromy groups associated with quadratic polynomials 
    Samoilovych, I. (Algebra and Discrete Mathematics, 2017)
    In this paper we describe the profinite closure of the iterated monodromy groups arising from the arbitrary post-critically finite quadratic polynomial.
  • The R∞ property for Houghton's groups 
    Jang Hyun Jo; Jong Bum Lee; Sang Rae Lee (Algebra and Discrete Mathematics, 2017)
    We study twisted conjugacy classes of a family of groups which are called Houghton's groups Hn (n∈N), the group of translations of n rays of discrete points at infinity. We prove that the Houghton's groups Hn have the R∞ ...
  • Vitaliy Sushchansky (11.11.1946 – 29.10.2016) 
    Автор відсутній (Algebra and Discrete Mathematics, 2017)
    Vitaliy Ivanovych Sushchansky was born on November 11, 1946 in Khodorkiv in Zhytomyr region west of Kyiv. He died half a month before his seventieth birthday on October 29, 2016 in Gliwice, Poland. He was an outstanding ...

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