Penot, Jean-Paul Sous-différentiels de fonctions numériques non convexes. (French) Zbl 0318.46055 C. R. Acad. Sci., Paris, Sér. A 278, 1553-1555 (1974). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 15 Documents MSC: 46G05 Derivatives of functions in infinite-dimensional spaces 52A20 Convex sets in \(n\) dimensions (including convex hypersurfaces) PDFBibTeX XMLCite \textit{J.-P. Penot}, C. R. Acad. Sci., Paris, Sér. A 278, 1553--1555 (1974; Zbl 0318.46055)