Calderón, Alberto P. The analytic calculation of the index of elliptic equations. (English) Zbl 0152.11402 Proc. Natl. Acad. Sci. USA 57, 1193-1194 (1967). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 6 Documents Keywords:partial differential equations PDFBibTeX XMLCite \textit{A. P. Calderón}, Proc. Natl. Acad. Sci. USA 57, 1193--1194 (1967; Zbl 0152.11402) Full Text: DOI