Glicksberg, I. A remark on Rouche’s theorem. (English) Zbl 0318.30002 Am. Math. Mon. 83, 186-187 (1976). MSC: 30C15 PDF BibTeX XML Cite \textit{I. Glicksberg}, Am. Math. Mon. 83, 186--187 (1976; Zbl 0318.30002) Full Text: DOI
Bellman, Richard; Glicksberg, Irving; Gross, Oliver Notes on matrix theory. VI. (English) Zbl 0065.24702 Am. Math. Mon. 62, 571-572 (1955). PDF BibTeX XML Cite \textit{R. Bellman} et al., Am. Math. Mon. 62, 571--572 (1955; Zbl 0065.24702) Full Text: DOI