In many investigations the idempotent and nilpotent elements in a ring play an i mportant role. Clearly every idempotent element e [is not equal to] 1 in R, is a zero divisor and every non zero nilpotent element in R is a zero divisor. This motivates the
Description:
Thesis (M.S.)--American University of Beirut, Dept. of Mathematics, 2006.;"Advisor:Dr. Hazar Abu Khuzam, Professor, Mathematics--Member of Committee: Dr. Nazih Nahlus, Professor, Mathematics--Member of Committee:Dr. Bassam Shayya, Associate Professor, Mat
