Grabiner, Sandy Ranges of products of operators. (English) Zbl 0259.47003 Can. J. Math. 26, 1430-1441 (1974). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 7 Documents MSC: 47A10 Spectrum, resolvent 47B06 Riesz operators; eigenvalue distributions; approximation numbers, \(s\)-numbers, Kolmogorov numbers, entropy numbers, etc. of operators 47B99 Special classes of linear operators 46H10 Ideals and subalgebras 47L10 Algebras of operators on Banach spaces and other topological linear spaces PDFBibTeX XMLCite \textit{S. Grabiner}, Can. J. Math. 26, 1430--1441 (1974; Zbl 0259.47003) Full Text: DOI