Djordjević, Dragan S. Perturbations of spectra of operator matrices. (English) Zbl 1019.47003 J. Oper. Theory 48, No. 3, 467-486 (2002). Reviewer: Aurelian Gheondea (Bucureşti) MSC: 47A10 47A53 47A55 PDFBibTeX XMLCite \textit{D. S. Djordjević}, J. Oper. Theory 48, No. 3, 467--486 (2002; Zbl 1019.47003)
Harte, Robin; Lee, Woo Young; Littlejohn, Lance L. On generalized Riesz points. (English) Zbl 1019.47004 J. Oper. Theory 47, No. 1, 187-196 (2002). Reviewer: Aurelian Gheondea (Bucureşti) MSC: 47A10 47A55 47A53 PDFBibTeX XMLCite \textit{R. Harte} et al., J. Oper. Theory 47, No. 1, 187--196 (2002; Zbl 1019.47004)
Herrero, Domingo A. Economical compact perturbations. II: Filling in the holes. (English) Zbl 0673.47014 J. Oper. Theory 19, No. 1, 25-42 (1988). Reviewer: J.R.L.Webb MSC: 47A55 47A10 PDFBibTeX XMLCite \textit{D. A. Herrero}, J. Oper. Theory 19, No. 1, 25--42 (1988; Zbl 0673.47014)
Salinas, Norberto On the distance to the set of compact perturbations of nilpotent operators. (English) Zbl 0489.47002 J. Oper. Theory 3, 179-194 (1980). MSC: 47A55 47A10 47L10 PDFBibTeX XMLCite \textit{N. Salinas}, J. Oper. Theory 3, 179--194 (1980; Zbl 0489.47002)