Retour sur les caractères fermé et relativement ouvert du cône-barrière d'un convexe
Séparation forte -branlante de deux convexes
Quelques questions soulevées par le cône barrière d'un convexe
On the decomposition of a vector space in the sum of a convex set and a subspace
Une démonstration géométrique du théorème de Choquet-Kendall
Équivalences concernant la séparation de plusieurs cônes convexes
19th-century real analysis, forward and backward
19th-century real analysis received a major impetus from Cauchy's work. Cauchy mentions variable quantities, limits, and infinitesimals, but the meaning he attached to these terms is not identical to their modern meaning. Some Cauchy historians work in a conceptual scheme dominated by an assumption of a teleological nature of the evolution of real analysis toward a preordained outcome. Thus, Gilain and Siegmund-Schultze assume that references to limite in Cauchy's work necessarily imply that Cauchy...
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