Gilbert, R. C. Extremal spectral functions of a symmetric operator. (English) Zbl 0135.16703 Pac. J. Math. 14, 75-84 (1964). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 Document Keywords:functional analysis PDFBibTeX XMLCite \textit{R. C. Gilbert}, Pac. J. Math. 14, 75--84 (1964; Zbl 0135.16703) Full Text: DOI