We attempt to characterize the property, for a convex function f , "Epi f is sharp and weakly complete" by a property of the polar function. Some examples show that a result completely analogous to the J.L. Joly characterization of "Epi f is sharp and weakly locally compact" seems impossible. We use an old (1962) result of G. Choquet.

Contact details are reproduced from the original publication and may be historical.

Jean Saint-Pierre

Département de Mathématiques, Case 051, Université Montpellier II, Place Eugène Bataillon, F-34095 Montpellier Cedex 5

Michel Valadier

Département de Mathématiques, Case 051, Université Montpellier II, Place Eugène Bataillon, F-34095 Montpellier Cedex 5

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J. Saint-Pierre, M. Valadier. “An Attempt of Characterization of Functions with Sharp Weakly Complete Epigraphs.” Journal of Convex Analysis 1 (1994), No. 1, 101–105. https://doi.org/10.68381/jca01007