【摘要】 研究了幂等元在形式三角矩阵环上的应用,得到了形式三角矩阵环T是左EQD环的充要条件,给出了形式三角矩阵环的若干新刻画;最后给出了形式三角矩阵环上幂等元的一个结论。更多还原

【Abstract】 This paper studies some applications of idempotent in formal triangular matrix rings,the author determines necessary and sufficient conditions for a formal triangular matrix ring to be left EQD-ring.Meanwhile,several new characterizations of formal triangular matrix rings are investigated.Finally,a result of idempotent on formal trangular matrix rings is also given.更多还原