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Перегляд Algebra and Discrete Mathematics, 2015, Vol. 20, № 1 за назвою

Репозиторій DSpace/Manakin

Перегляд Algebra and Discrete Mathematics, 2015, Vol. 20, № 1 за назвою

Сортувати за: Порядок: Результатів:

  • Krysztowiak, P.; Sysło, M.M. (Algebra and Discrete Mathematics, 2015)
    We consider algorithmics for the jump numberproblem, which is to generate a linear extension of a given poset,minimizing the number of incomparable adjacent pairs. Since thisproblem is NP-hard on interval orders and open ...
  • Koçak, D. (Algebra and Discrete Mathematics, 2015)
    In this article, we give two examples of finitely presented quadratic algebras (algebras presented by quadratic relations) of intermediate growth.
  • Kurdachenko, L.A.; Yashchuk, V.S.; Subbotin, I.Ya. (Algebra and Discrete Mathematics, 2015)
    In this paper, we introduce some algebraic struc-ture associated with groups and lattices. This structure is a semi-group and it appeared as the result of our new approach to thefuzzy groups andL-fuzzy groups whereLis a ...
  • Artemovych, O.D.; Lukashenko, M.P. (Algebra and Discrete Mathematics, 2015)
    Properties of Lie and Jordan rings (denoted respectively by RL and RJ) associated with an associative ring R are discussed. Results on connections between the differentially simplicity (respectively primeness, semiprimeness) ...
  • Catarino, P.; Vasco, P.; Campos, H.; Aires, A.P.; Borges, A. (Algebra and Discrete Mathematics, 2015)
    In this paper we present new families of sequences that generalize the Jacobsthal and the Jacobsthal-Lucas numbers and establish some identities. We also give a generating function for a particular case of the sequences presented.
  • Ustimenko, V. (Algebra and Discrete Mathematics, 2015)
    Special family of non-bijective multivariate maps Fn of Zmⁿ into itself is constructed for n = 2,3, ... and composite m.The map F is injective on Ωn = {x|x1+x2+: : : xn ∈ Zm*} and solution of the equation Fn(x) = b, x ∈ ...
  • Küsmüş, Ö. (Algebra and Discrete Mathematics, 2015)
    There are many kind of open problems withvarying difficulty on units in a given integral group ring. In thisnote, we characterize the unit group of the integral group ring of Cn × C₆ where Cn = 〈a: aⁿ = 1〉 and C₆ = 〈x: x⁶ ...
  • Dokuchaev, M.; Kirichenko, V.V.; Plakhotnyk, M. (Algebra and Discrete Mathematics, 2015)
    We show how to use generating exponent matrices to study the quivers of exponent matrices. We also describe the admissible quivers of 3×3 exponent matrices.
  • Kukharev, A.; Puninski, G. (Algebra and Discrete Mathematics, 2015)
    For a givenp, we determine when thepmodulargroup ring of a group from GL(n,q), SL(n,q) and PSL(n,q)-seriesis serial.
  • Автор відсутній (Algebra and Discrete Mathematics, 2015)
    On September 7, 2015, a distinguished mathematician, one of thefounders of our journal, Efim Isaakovich Zelmanov, turned 60. He wasborn in Khabarovsk, Soviet Union (now Russian Federation), while hismother grew up in the ...
  • Acosta, J,.P.; Lezama, O. (Algebra and Discrete Mathematics, 2015)
    In this paper we prove the universal property of skew $PBW$ extensions generalizing this way the well known universal property of skew polynomial rings. For this, we will show first a result about the existence of this ...

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