利用分块算子矩阵的技巧,对无穷维复Hilbert空间进行分解,在PQP=P,PQP=0,PQP=PQ的条件下,得到两个幂等算子P,Q多线性组合的Drazin逆的表达式.
By using the block-operator matrix technique and the decomposition of the infinite dimensional complex Hilbert spaces,the representations of the Drazin inverses of multiplicative combinations associated with two idempotents P,Q on a complex Hilbert space were obtained under the conditions PQP = P,PQP = 0,PQP = PQ.