Sell, George R. A characterization of smooth \(\alpha\)-Lipschitz mappings on a Hilbert space. (English) Zbl 0254.47088 Atti Accad. Naz. Lincei, VIII. Ser., Rend., Cl. Sci. Fis. Mat. Nat. 52, 668-674 (1972). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 3 Documents MSC: 47H10 Fixed-point theorems 47J05 Equations involving nonlinear operators (general) PDFBibTeX XMLCite \textit{G. R. Sell}, Atti Accad. Naz. Lincei, VIII. Ser., Rend., Cl. Sci. Fis. Mat. Nat. 52, 668--674 (1972; Zbl 0254.47088)