Remarks on Centers of Rings

Autor: Yang Lee, Tai Keun Kwak, Juan Huang, Hai-lan Jin, Zhelin Piao
Rok vydání: 2021
Předmět:
Zdroj: Algebra Colloquium. 28:1-12
ISSN: 0219-1733
1005-3867
DOI: 10.1142/s100538672100002x
Popis: It is proved that for matrices [Formula: see text], [Formula: see text] in the [Formula: see text] by [Formula: see text] upper triangular matrix ring [Formula: see text] over a domain [Formula: see text], if [Formula: see text] is nonzero and central in [Formula: see text] then [Formula: see text]. The [Formula: see text] by [Formula: see text] full matrix rings over right Noetherian domains are also shown to have this property. In this article we treat a ring property that is a generalization of this result, and a ring with such a property is said to be weakly reversible-over-center. The class of weakly reversible-over-center rings contains both full matrix rings over right Noetherian domains and upper triangular matrix rings over domains. The structure of various sorts of weakly reversible-over-center rings is studied in relation to the questions raised in the process naturally. We also consider the connection between the property of being weakly reversible-over-center and the related ring properties.
Databáze: OpenAIRE