Cordes, H. O.; Herman, E. A. Gel’fand theory of pseudo differential operators. (English) Zbl 0169.47105 Am. J. Math. 90, 681-717 (1968). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 33 Documents Keywords:functional analysis PDF BibTeX XML Cite \textit{H. O. Cordes} and \textit{E. A. Herman}, Am. J. Math. 90, 681--717 (1968; Zbl 0169.47105) Full Text: DOI OpenURL