Kakutani, Shizuo Simultaneous extension of continuous functions considered as a positive linear operation. (English) Zbl 0023.39603 Jap. J. Math. 17, 1-4 (1940). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 Document Keywords:Functional analysis, function spaces PDFBibTeX XMLCite \textit{S. Kakutani}, Jpn. J. Math. 17, 1--4 (1940; Zbl 0023.39603)