نتایج جستجو برای: baer

تعداد نتایج: 1039  

2007
Mihail Ursul

Locally direct sums [W, Definition 3.15] appeared naturally in classification results for topological rings (see, e.g.,[K2], [S1], [S2], [S3], [U1]). We give here a result (Theorem 3) for locally compact Baer rings by using of locally direct sums. 1. Conventions and definitions All topological rings are assumed associative and Hausdorff. The subring generated by a subset A of a ring R is denote...

Journal: :Revista De La Union Matematica Argentina 2022

Journal: :iranian journal of science and technology (sciences) 2014
h. haj seyyed javadi

in this paper, we introduce the concept of the   generalized aip-rings as a generalization of the generalized quasi-   baer rings   and generalized p.p.-rings. we show that the class of the generalized aip-rings is closed under direct products and morita invariance. we also characterize the 2-by-2 formal upper triangular matrix rings of this new class of rings. finally, we provide sever...

Journal: :bulletin of the iranian mathematical society 2011
e. hashemi

Journal: :bulletin of the iranian mathematical society 0
n. ashrafi semnan universityfaculty of mathematics, statistics and computer science, semnan university, semnan, iran. n. pouyan faculty of mathematics, statistics and computer science, semnan university, semnan, iran.

in this paper we prove that each element of any regular baer ring is a sum of two units if no factor ring of r is isomorphic to z_2 and we characterize regular baer rings with unit sum numbers $omega$ and $infty$. then as an application, we discuss the unit sum number of some classes of group rings.

Journal: :Int. J. Math. Mathematical Sciences 2009
E. F. Cornelius

The endomorphism ring of the group of all sequences of integers, the Baer-Specker group, is isomorphic to the ring of row finite infinite matrices over the integers. The product bases of that group are represented by the multiplicative group of invertible elements in that matrix ring. All products in the Baer-Specker group are characterized, and a lemma of László Fuchs regarding such products i...

2006

Research on gender differences in creativity, including creativity test scores, creative achievements, and self-reported creativity is reviewed, as are theories that have been offered to explain such differences and available evidence that supports or refutes such theories. This is a difficult arena in which to conduct research, but there is a consistent lack of gender differences both in creat...

Journal: :Proceedings of the American Mathematical Society 1960

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