预加法范畴中态射的(1,2)-逆与βα^((1,2))γ的不变性

(1,2)-Inverses and the Invariance of β α^((1,2))γ in a Preadditive Category

研究了预加法范畴中态射的(1,…,i) 逆,给出了态射三乘积βα′γ的不变性的充要条件,其中α′是态射α的(1) 逆或者(1,2) 逆.

The paper presents the studies on the (1,…,i)-inverses of a morphism in a preadditive category. Necessary and sufficient conditions are given for the invariance of the morphisms triplet β α′γ, where α′ is a (1) –inverse or a (1,2)–inverse of morphisms α.