关于态射的Drazin逆

ON DRAZIN INVERSES OF MORPHISMS

给出了态射的Drazin逆存在的条件及显式表达式,改进并推广了[1]、[2]与[3]中的一些主要定理。

This paper gives existential conditions and expressions for the Drazin invees of morphisms.These results improve and generalize some important results in [1][2]and [3].