Shao, Chunfang The generalized inverses of the almost sharp quantum effect. (Chinese. English summary) Zbl 1240.81016 J. Shandong Univ., Nat. Sci. 46, No. 3, 99-101, 120 (2011). MSC: 81Q10 15A09 PDFBibTeX XMLCite \textit{C. Shao}, J. Shandong Univ., Nat. Sci. 46, No. 3, 99--101, 120 (2011; Zbl 1240.81016)
Shao, Chunfang The second kind of generalized Bott-Duffin inverse of operators. (Chinese. English summary) Zbl 1210.47005 J. Shandong Univ., Nat. Sci. 44, No. 6, 14-17 (2009). MSC: 47A05 15A09 PDFBibTeX XMLCite \textit{C. Shao}, J. Shandong Univ., Nat. Sci. 44, No. 6, 14--17 (2009; Zbl 1210.47005)