We introduce the conception of involutorial antiautomorphism over distributive pseudolattices, define and get some properties of M-P inverse of matrix.
在分配伪格上引入对合反自同构和矩阵M-P逆的概念，得到矩阵M-P逆的若干性质。
2
In this note, we establish a mild condition on A such that every Jordan automorphism of A is either an isomorphism or an anti-isomorphism.