对矩阵的第二类广义Bott—Duffin(B—D)逆的概念进行推广,利用算子的{1}-逆定义无穷维Hilben空间上有界线性算子A关于一个闭子空间L的第二类广义Bott-Duffin逆,并运用Hilbert空间上算子分块的技巧分别讨论算子的第二类广义Bott—Duffin逆的存在性、矩阵表示形式和相关性质。
A new generalized Bott-Dutffin(B-D) inverse, named the second kind of generalized Bott-Duffin inverse of bounded linear operator A on an infinite dimensional Hilbert space with respect to a closed subspace L, is defined by using { 1 }-inverse of operators, which is a generalization of the second kind of generalized Bott-Duffin inverse of matrices. Also, the existence, the representations and some properties of the second kind of generalized Bott-Duffin inverse me discussed by applying the technique of block operator matrix.