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Перегляд Algebra and Discrete Mathematics за назвою

Репозиторій DSpace/Manakin

Перегляд Algebra and Discrete Mathematics за назвою

Сортувати за: Порядок: Результатів:

  • Decompositions of set-valued mappings 
    Protasov, I. (Algebra and Discrete Mathematics, 2020)
  • Dense ideal extensions of strict regular semigroups 
    Pastijn, F.J.; Oliveira, L. (Algebra and Discrete Mathematics, 2006)
    If V is an existence variety of strict regular semigroups, then every semigroup in V has, within V, a maximal dense ideal extension.
  • Dense subgroups in the group of interval exchange transformations 
    Bier, A.; Sushchanskyy, V. (Algebra and Discrete Mathematics, 2014)
    The paper concerns the characterization of the group IET of interval exchange transformations (iet). We investigate a class of rational subgroups of IET. These are subgroups consisting of iet transformations defined by ...
  • Densities, submeasures and partitions of groups 
    Banakh, T.; Protasov, I.; Slobodianiuk, S. (Algebra and Discrete Mathematics, 2014)
    In 1995 in Kourovka notebook the second author asked the following problem: is it true that for each partition G=A₁ ∪ ⋯ ∪ An of a group G there is a cell Ai of the partition such that G = FAiA⁻¹i for some set F ⊂ G of ...
  • Derivations and relation modules for inverse semigroups 
    Gilbert, N.D. (Algebra and Discrete Mathematics, 2011)
    We define the derivation module for a homomorphism of inverse semigroups, generalizing a construction for groups due to Crowell. For a presentation map from a free inverse semigroup, we can then define its relation module ...
  • Derived equivalence classification of generalized multifold extensions of piecewise hereditary algebras of tree type 
    Asashiba, H.; Kimura, M. (Algebra and Discrete Mathematics, 2015)
    We give a derived equivalence classification of algebras of the form Ă/〈∅〉 for some piecewise hereditary algebra A of tree type and some automorphism ∅ of Ă such that ∅(A⁽⁰⁾)=A⁽ⁿ⁾ for some positive integer n.
  • Derived tame and derived wild algebras 
    Drozd, Y.A. (Algebra and Discrete Mathematics, 2004)
    We prove that every finite dimensional algebra over an algebraically closed field is either derived tame or derived wild. We also prove that any deformation of a derived wild algebra is derived wild.
  • Description of the center of certain quotients of the Temperley-Lieb algebra of type ĀN 
    Vlasenko, M. (Algebra and Discrete Mathematics, 2004)
    In this paper we consider a family of associative algebras, given via generators and relations.
  • Dg algebras with enough idempotents, their dg modules and their derived categories 
    Saorín, M. (Algebra and Discrete Mathematics, 2017)
    We develop the theory dg algebras with enough idempotents and their dg modules and show their equivalence with that of small dg categories and their dg modules. We introduce the concept of dg adjunction and show that the ...
  • Diagonal direct limits of finite symmetric and alternating groups 
    Lavrenyuk, Y.V.; Nekrashevych, V.V.; Sushchansky, V.I. (Algebra and Discrete Mathematics, 2010)
    Diagonal direct limits of permutation groups are studied using their representations by homeomorphisms of the boundary of rooted trees. We describe a new method of classification of such permutation groups, and use this ...
  • Diagonalizability theorem for matrices over certain domains 
    Zabavsky, B.; Domsha, O. (Algebra and Discrete Mathematics, 2011)
    It is proved that R is a commutative adequate domain, then R is the domain of stable range 1 in localization in multiplicative closed set which corresponds s-torsion in the sense of Komarnitskii.
  • Diagonalizability theorems for matrices over rings with finite stable range 
    Zabavsky, B. (Algebra and Discrete Mathematics, 2005)
    We construct the theory of diagonalizability for matrices over Bezout ring with finite stable range. It is shown that every commutative Bezout ring with compact minimal prime spectrum is Hermite. It is also shown that a ...
  • Diagonal torsion matrices associated with modular data 
    Singh, G. (Algebra and Discrete Mathematics, 2021)
    Modular data are commonly studied in mathematics and physics. A modular datum defines a finite-dimensional representation of the modular group SL₂(Z). Cuntz (2007) defined isomorphic integral modular data. Here we discuss ...
  • Dickson's theorem for Bol loops 
    Movsisyan, Y. (Algebra and Discrete Mathematics, 2017)
    Dickson characterized groups in terms of one-sided invertibility. In this note, we give comparable characterizations for Bol and Moufang loops.
  • Differential graded categories associated with the critical semi-definite quadratic forms 
    Gnatiuk, O.; Golovaschuk, N. (Algebra and Discrete Mathematics, 2013)
    This work concerns with classification problem of differential graded categories with critical semi-definite quadratic form. We prove that such problem which satisfies some correctness conditions can be transformed to ...
  • Differentially trivial and rigid right semi-artinian rings 
    Artemovych, O.D. (Algebra and Discrete Mathematics, 2004)
    We obtain a characterization of right semi-artinian rings which have only trivial derivations and prove that a rigid (i.e. has only the trivial ring endomorphisms) right semi-artinian ring R is a field or isomorphic to ...
  • Dimensions of finite type for representations of partially ordered sets 
    Drozd, Y.A.; Kubichka, E.A. (Algebra and Discrete Mathematics, 2004)
    We consider the dimensions of finite type of representations of a partially ordered set, i.e. such that there is only finitely many isomorphism classes of representations of this dimension. We give a criterion for a ...
  • Direct decompositions of artinian modules related to formations of groups 
    Kurdachenko, L. A.; Otal, J. (Algebra and Discrete Mathematics, 2003)
    We survey direct decompositions of artinian modules over group rings into two summands where all the chief factors of the first are X–central and all the chief factors of the other is X–eccentric, where X is a certain ...
  • Discrete limit theorems for Estermann zeta-functions. I 
    Laurincikas, A.; Macaitiene, R. (Algebra and Discrete Mathematics, 2007)
    A discrete limit theorem in the sense of weak convergence of probability measures on the complex plane for the Estermann zeta-function is obtained. The explicit form of the limit measure in this theorem is given.
  • Discrete limit theorems for Estermann zeta-functions. II 
    Laurincikas, A.; Macaitiene, R. (Algebra and Discrete Mathematics, 2008)
    A discrete limit theorem in the sense of weak convergence of probability measures in the space of meromorphic functions for the Estermann zeta-function with explicitly given the limit measure is proved.

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