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2012 | 21 |
Article title

Twice Differentiable Characterizations of Convexity Notions for Functions on Full Dimensional Convex Sets

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PL
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PL
IWe derive C2 −characterizations for convex, strictly convex, as well as strongly convex functions on full dimensional convex sets. In the cases of convex and strongly convex functions this weakens the well-known openness assumption on the convex sets. We also show that, in a certain sense, the full dimensionality assumption cannot be weakened further. In the case of strictly convex functions we weaken the well-known sufficient C2 −condition for strict convexity to a characterization. Several examples illustrate the results.
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21
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published
2012
online
21 - 05 - 2015
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bwmeta1.element.ojs-issn-2083-8476-year-2012-volume-21-article-2213
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