Browsing 2004 by Title

Sort by: Order: Results:

  • A note to my paper “Multi-algebras from the viewpoint of algebraic logic” 
    Cırulis, Janis (Луганский национальный университет им. Т. Шевченко, 2003)
    The definition of a resolvent, introduced in the paper mentioned in the title, is simplified, and some misprints in that paper are corrected.
  • Basic semigroups: theory and applications 
    Ponizovskii, J. S. (Луганский национальный университет им. Т. Шевченко, 2004)
    A concept of basic matrix semigroups over fields (with some variations) is introduced and throughly investigated. Sections 1 and 2 contain main definitions, Section 3 treats some properties of basic semigroups, Section 4 ...
  • C -algebra generated by four projections with sum equal to 2 
    Savchuk, Yuri (Луганский национальный университет им. Т. Шевченко, 2004)
    We describe the C -algebra generated by four orthogonal projections p1, p2, p3, p4, satisfying the linear relation p1 + p2 + p3 + p4 = 2I. The simplest realization by 2 × 2-matrixfunctions over the sphere S2 is given.
  • Categories of lattices, and their global structure in terms of almost split sequences 
    Rump, Wolfgang (Луганский национальный университет им. Т. Шевченко, 2004)
    A major part of Iyama’s characterization of Auslander-Reiten quivers of representation-finite orders consists of an induction via rejective subcategories of ¤-lattices, which amounts to a resolution of ¤ as an isolated ...
  • Clones of full terms 
    Denecke, Klaus; Jampachon, Prakit (Луганский национальный университет им. Т. Шевченко, 2004)
    In this paper the well-known connection between hyperidentities of an algebra and identities satisfied by the clone of this algebra is studied in a restricted setting, that of n-ary full hyperidentities and identities of ...
  • Conic bundles over real formal power series field 
    Bazyleu, Dzmitry F.; Tikhonov, Sergey V.; Yanchevski, Vyacheslav I. (Луганский национальный университет им. Т. Шевченко, 2003-11-28)
  • Correct classes of modules 
    Wisbauer, Robert (Луганский национальный университет им. Т. Шевченко, 2004)
    For a ring R, call a class C of R-modules (pure-) mono-correct if for any M,N ∈ C the existence of (pure) monomorphisms M → N and N → M implies M ≃ N. Extending results and ideas of Rososhek from rings to modules, it is ...
  • Derived tame and derived wild algebras 
    Drozd, Yuriy A. (Луганский национальный университет им. Т. Шевченко, 2004)
  • Description of the center of certain quotients of the Temperley-Lieb algebra of type e AN 
    Vlasenko, Masha (Луганский национальный университет им. Т. Шевченко, 2004)
  • Differentially trivial and rigid right semi-artinian 
    Artemovych, O. D. (Луганский национальный университет им. Т. Шевченко, 2004-04-08)
  • Dimensions of finite type for representations of partially ordered sets 
    Drozd, Yuriy A.; Kubichka, Eugene A. (Луганский национальный университет им. Т. Шевченко, 2004)
    We consider the dimensions of finite type of rep- resentations of a partially ordered set, i.e. such that there is only finitely many isomorphism classes of representations of this dimen- sion. We give a criterion for ...
  • Finite group with given c-permutable subgroups 
    Ahmad Alsheik Ahmad (Луганский национальный университет им. Т. Шевченко, 2004)
  • Finite groups with a system of generalized central elements 
    Shemetkova, Olga (Луганский национальный университет им. Т. Шевченко, 2004)
    Let H be a normal subgroup of a finite group G. A number of authors have investigated the structure of G under the assumption that all minimal or maximal subgroups in Sylow subgroups of H are well-situated in G. A general ...
  • Generalized equivalence of collections of matrices and common divisors of matrices 
    Petrychkovych, Vasyl‘ M. (Луганский национальный университет им. Т. Шевченко, 2004)
    The collections (A1, ...,Ak) and (B1, ...,Bk) of matrices over an adequate ring are called generalized equivalent if Ai = UBiVi for some invertible matrices U and Vi, i = 1, ..., k. Some conditions are established under ...
  • Green’s relations on the deformed transformation semigroups 
    Tsyaputa, G. Y. (Луганский национальный университет им. Т. Шевченко, 2004)
  • Groups, in which almost all subgroups are near to normal 
    Semko, M. M.; Kuchmenko, S. M. (Луганский национальный университет им. Т. Шевченко, 2004)
    A subgroup H of a group G is said to be nearly normal, if H has a finite index in its normal closure. These sub- groups have been introduced by B.H. Neumann. In a present paper is studied the groups whose non polycyclic ...
  • Kleinian singularities and algebras generated by elements that have given spectra and satisfy a scalar sum relation 
    Mellit, Anton (Луганский национальный университет им. Т. Шевченко, 2004)
    We consider the algebras ei (Q)ei, where (Q) is the deformed preprojective algebra of weight and i is some vertex of Q, in the case where Q is an extended Dynkin diagram and lies on the hyperplane orthogonal to the ...
  • Minimax sums of posets and the quadratic Tits form 
    Bondarenko, Vitalij M.; Polishchuk, Andrej M. (Луганский национальный университет им. Т. Шевченко, 2003-11-18)
    Dedicated Michael Ringel on the occasion of his sixtieth birthday
  • On associative algebras satisfying the identity x5 = 0 
    Shestakov, Ivan; Zhukavets, Natalia (Луганский национальный университет им. Т. Шевченко, 2004)
  • On autotopies and automorphisms of n-ary linear quasigroups 
    Marini, Alberto; Shcherbacov, Victor (Луганский национальный университет им. Т. Шевченко, 2004)
    In this article we study structure of autotopies, automorphisms, autotopy groups and automorphism groups of n- ary linear quasigroups. We find a connection between automorphism groups of some special kinds of n-ary ...

Search DSpace


Advanced Search

Browse

My Account