Harte, Robin Polar decomposition and the Moore-Penrose inverse. (English) Zbl 0845.47003 Panam. Math. J. 2, No. 4, 71-76 (1992). MSC: 47A05 46L05 PDFBibTeX XMLCite \textit{R. Harte}, Panam. Math. J. 2, No. 4, 71--76 (1992; Zbl 0845.47003)
Harte, Robin Exactness in elementary differential equations. (English) Zbl 0912.34012 Panam. Math. J. 2, No. 2, 11-16 (1992). Reviewer: K.R.Schneider (Berlin) MSC: 34A34 PDFBibTeX XMLCite \textit{R. Harte}, Panam. Math. J. 2, No. 2, 11--16 (1992; Zbl 0912.34012)
Harte, Robin Eine kleine Gapmusik. (English) Zbl 0745.47004 Panam. Math. J. 2, No. 1, 101-102 (1992). MSC: 47A05 PDFBibTeX XMLCite \textit{R. Harte}, Panam. Math. J. 2, No. 1, 101--102 (1992; Zbl 0745.47004)
Harte, Robin On quasinilpotents in rings. (English) Zbl 0761.16009 Panam. Math. J. 1, No. 1, 10-16 (1991). Reviewer: M.Fritzsche (Potsdam) MSC: 16N40 46H05 16U99 PDFBibTeX XMLCite \textit{R. Harte}, Panam. Math. J. 1, No. 1, 10--16 (1991; Zbl 0761.16009)
Burlando, Laura; Harte, Robin On the closure of the invertibles. (English) Zbl 0739.47001 Panam. Math. J. 1, No. 2, 89-90 (1991). Reviewer: R.Cross (Rondebosch) MSC: 47A05 PDFBibTeX XMLCite \textit{L. Burlando} and \textit{R. Harte}, Panam. Math. J. 1, No. 2, 89--90 (1991; Zbl 0739.47001)