Geodesic
On Weakly Reversible Rings
Acta mathematica Universitatis Comenianae, Tome 76 (2007) no. 2 
Zhao Liang; Yang Gang. On Weakly Reversible Rings. Acta mathematica Universitatis Comenianae, Tome 76 (2007) no. 2. http://geodesic.mathdoc.fr/item/AMUC_2007_76_2_a6/
@article{AMUC_2007_76_2_a6,
     author = {Zhao Liang and Yang Gang},
     title = {On {Weakly} {Reversible} {Rings}},
     journal = {Acta mathematica Universitatis Comenianae},
     year = {2007},
     volume = {76},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/AMUC_2007_76_2_a6/}
}
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Voir la notice de l'article provenant de la source Comenius University

Let R be a ring. We introduce weakly reversible rings, which are a generalization of reversible rings, and investigate their properties. Moreover, we show that a ring R is weakly reversible if and only if for any n , the n -by- n upper triangular matrix ring T n ( R ) is weakly reversible. Also some kinds of examples needed in the process are given.