Results 11 to 20 of about 5,631 (197)
Linear maps on real C* - algebras and related structures [PDF]
PhDIn this thesis we obtain new results on the structures of real C*-algebras and nonsurjective isometries between them. Some of the results have been published in [1].
Apazoglou, Maria
core +4 more sources
Centralisers on rings and algebras [PDF]
In this paper we investigate identities related to centralisers in rings and algebras. We prove, for example, the following result. LetAbe a semisimpleH*-algebra and letT:A→Abe an additive mapping satisfying the relationT(xm+n+1) =xmT(x)xnfor allx∈Aand some integersm≥ 1,n≥ 1. In this caseTis a left and a right centraliser.
Vukman, Joso, Kosi-Ulbl, Irena
openaire +2 more sources
On the algebraic closure in rings [PDF]
Soit \(A\) un anneau unifère et \(A^{-1}\) le groupe de ses éléments inversibles. On désigne par \(d(K)\) la clôture algébrique d'une partie \(K\) de \(A\) l'ensemble des éléments \(a\) de \(A\) tels que, pour tout élément \(b\) de \(A\) il existe un élément \(a'\) de \(K\) tel que \(1-b(a-a')\) appartienne à \(A^{-1}\). Les AA.
Cvetkovic-Ilic, Dragana, Harte, Robin
openaire +1 more source
SMARANDACHE NON-ASSOCIATIVE RINGS [PDF]
An associative ring is just realized or built using reals or complex; finite or infinite by defining two binary operations on it. But on the contrary when we want to define or study or even introduce a non-associative ring we need two separate algebraic ...
Vasantha, Kandasamy
core +1 more source
AbstractStudies of various algebraic structures which can be defined over a Boolean algebra by means of Boolean operations have been made by Bernstein [1, 2], Cunkle [3], Elliott [4], Frink [6, 7], Grätzer [8], Grätzer and Schmidt [9], Rudeanu [10, 11], Vaidyanathaswamy [12], Wiener [13], and others.
C. H. Cunkle, Sergiu Rudeanu
openaire +2 more sources
Operads and Γ-homology of commutative rings [PDF]
We introduce Γ-homology, the natural homology theory for E[infty infinity]-algebras, and a cyclic version of it. Γ-homology specializes to a new homology theory for discrete commutative rings, very different in general from André–Quillen homology.
Robinson, Alan (C. Alan) +1 more
core +1 more source
Lifting Elements in Coherent Quantales [PDF]
An ideal I of a ring R is a lifting ideal if the idempotents of R can be lifted modulo I. A rich literature has been dedicated to lifting ideals. Recently, new algebraic and topological results on lifting ideals have been discovered.
George Georgescu
doaj +1 more source
Properties and examples of FCR-algebras [PDF]
An algebra A over a field k is FCR if every finite dimensional representation of A is completely reducible and the intersection of the kernels of these representations is zero.
Kraft, Hanspeter +2 more
core +1 more source
The theory of near-rings has arisen in a variety of ways. There is a natural desire to generalise the theory of rings and skew fields by relaxing some of their defining axioms.
Holcombe, William Michael Lloyd
core +6 more sources
CC-circuits and the expressive power of nilpotent algebras [PDF]
We show that CC-circuits of bounded depth have the same expressive power as circuits over finite nilpotent algebras from congruence modular varieties. We use this result to phrase and discuss a new algebraic version of Barrington, Straubing and Th\'erien'
Michael Kompatscher
doaj +1 more source

