Наукова електронна бібліотека
періодичних видань НАН України

Перегляд Algebra and Discrete Mathematics, 2019, Vol. 28, № 2 за датою випуску

Репозиторій DSpace/Manakin

Перегляд Algebra and Discrete Mathematics, 2019, Vol. 28, № 2 за датою випуску

Сортувати за: Порядок: Результатів:

  • Tolue, B.; Zolfaghari, P.; Moghaddasi, Gh. (Algebra and Discrete Mathematics, 2019)
    In this paper, we intend to define an ultra-group by its presentation. The attitude of the presentation for a group was the key for us to investigate in this area. Instead of writing whole elements of an ultra-group, we ...
  • Sudev, N.K.; Chithra, K.P.; Germina, K.A. (Algebra and Discrete Mathematics, 2019)
    In this paper, we discuss the sparing number of the power graphs of the Mycielski graphs of certain graph classes.
  • Skrzyński, M. (Algebra and Discrete Mathematics, 2019)
    We collect some basic properties of NSP constants of a matrix, discuss an additive behavior of the spark, and prove two theorems characterizing linear endomorphisms which preserve the NSP constants.
  • Kashu, A.I. (Algebra and Discrete Mathematics, 2019)
    In this article preradicals and closure operators are studied in an adjoint situation, defined by two covariant functors between the module categories R-Mod and S-Mod. The mappings which determine the relationship between ...
  • Jahari, S.; Alikhani, S. (Algebra and Discrete Mathematics, 2019)
    We study the D-equivalence classes of some families of graphs and, in particular, describe completely the D-equivalence classes of friendship graphs constructed by coalescing n copies of a cycle graph of length 3 with a ...
  • Gavrylkiv, V.; Rendziak, D. (Algebra and Discrete Mathematics, 2019)
    In the paper we characterize all interassociates of some non-inverse semigroups and describe up to isomorphism all three-element (strong) doppelsemigroups and their automorphism groups. We prove that there exist 75 pairwise ...
  • Drozd, Y.A.; Tovpyha, O. (Algebra and Discrete Mathematics, 2019)
    For a wide class of Cohen–Macaulay modules over the local ring of the plane curve singularity of type T₃₆ we describe explicitly the corresponding matrix factorizations. The calculations are based on the technique of matrix ...
  • Dranishnikov, A. (Algebra and Discrete Mathematics, 2019)
    We prove the product formula cd(Г×Г) = 2 cd Г for cohomological dimension of geometrically finite groups.
  • Denis, M.St.; Yee, W.L. (Algebra and Discrete Mathematics, 2019)
    The Unitary Dual Problem is one of the most important open problems in mathematics: classify the irreducible unitary representations of a group. That is, classify all irreducible representations admitting a definite invariant ...
  • Braga, C.A. (Algebra and Discrete Mathematics, 2019)
    We provided a constructive argument to obtain an infinite generated tilting module from a family of tilting modules satisfying some hypotheses. We also applied the result over a hereditary algebra to get the Lukas tilting module.
  • Bilgin, Z.; Koç, S.; Özkirişci, N.A. (Algebra and Discrete Mathematics, 2019)
    In this work, we study strongly prime submodules and strongly 0-dimensional modules. We give some equivalent conditions for being a strongly 0-dimensional module. Besides we show that the quasi-Zariski topology on the ...
  • Babych, V.; Golovashchuk, N. (Algebra and Discrete Mathematics, 2019)
    We consider a class of normal bimodule problems satisfying some structure, triangularity and finiteness conditions (one-sided bimodule problems). We study the structure of non-schurian bimodule problems from our class and ...
  • Автор відсутній (Algebra and Discrete Mathematics, 2019)
    On October 15, 2019 an outstanding Ukrainian mathematician, one of the founders of Kyiv algebraic school Yuriy Drozd celebrated his 75th birthday.

Пошук


Розширений пошук

Перегляд

Мій обліковий запис