In his recent book "From Hahn-Banach to Monotonicity" (Springer-Verlag, Berlin, 2008) S. Simons formulated several open problems. In this short note we give the answer to Problem 11.6 and a short proof to the answer given by R. I. Bot and R. Csetnek to Problem 11.5

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

Constantin Zalinescu

University "Al. I. Cuza", Faculty of Mathematics, Bd. Copou Nr. 11, 6600 Iasi, Romania

zalinesc@uaic.ro

C. Zalinescu. “On Two Open Problems in Convex Analysis.” Journal of Convex Analysis 16 (2009), No. 3&4, 1035–1038.