Ingraham, Richard L. The geometry of the heat equation. (English) Zbl 0057.32701 Compos. Math. 12, 147-156 (1954). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 Document Keywords:Partial differential equations PDFBibTeX XMLCite \textit{R. L. Ingraham}, Compos. Math. 12, 147--156 (1954; Zbl 0057.32701) Full Text: Numdam EuDML