We study the class of compact convex subsets of a topological vector space which admit a strictly convex and lower semicontinuous function. We prove that such a compact set is embeddable in a strictly convex dual Banach space endowed with its weak* topology. In addition, we find many exposed points where a strictly convex lower semicontinuous function is continuous. As a consequence, every set in the above class is the closed convex hull of its exposed points.

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

Luis Carlos García-Lirola

Dep. de Matemáticas, Facultad de Matemáticas, Universidad de Murcia, 30100 Espinardo-Murcia, Spain

luiscarlos.garcia@um.es

José Orihuela

Dep. de Matemáticas, Facultad de Matemáticas, Universidad de Murcia, 30100 Espinardo-Murcia, Spain

joseori@um.es

Matías Raja

Dep. de Matemáticas, Facultad de Matemáticas, Universidad de Murcia, 30100 Espinardo-Murcia, Spain

matias@um.es

L. C. García-Lirola, J. Orihuela, M. Raja. “Convex Compact Sets that Admit a Lower Semicontinuous Strictly Convex Function.” Journal of Convex Analysis 24 (2017), No. 3, 987–998.