Weakly g (x)-clean rings
N Ashrafi, Z Ahmadi - Iranian Journal of Mathematical Sciences and …, 2012 - ijmsi.ir
A ring $ R $ with identity is called``clean''if $~ $ for every element $ ain R $, there exist an
idempotent $ e $ and a unit $ u $ in $ R $ such that $ a= u+ e $. Let $ C (R) $ denote the …
idempotent $ e $ and a unit $ u $ in $ R $ such that $ a= u+ e $. Let $ C (R) $ denote the …
4-placement of rooted trees
AH YOUSEFI, A GOUDARZI - 2006 - sid.ir
4-PLACEMENT OF ROOTED TREES Page 1 Iranian Journal of Mathematical Sciences and
Informatics Vol.1, No.2 (2006),pp 65-77 4 PLACEMENT OF ROOTED TREES H. YOUSEFI-AZARI …
Informatics Vol.1, No.2 (2006),pp 65-77 4 PLACEMENT OF ROOTED TREES H. YOUSEFI-AZARI …