The distance between subdifferentials in the terms of functions
For convex continuous functions defined respectively in neighborhoods of points in a normed linear space, a formula for the distance between and in terms of (i.eẇithout using the dual) is proved. Some corollaries, like a new characterization of the subdifferential of a continuous convex function at a point, are given. This, together with a theorem from [4], implies a sufficient condition for a family of continuous convex functions on a barrelled normed linear space to be locally uniformly...
The Schur-harmonic-convexity of dual form of the Hamy symmetric function
The sum of two plane convex C... sets is not always C...
The use of conjugate convex functions in complex analysis
Transformations which preserve convexity.
Two new mappings associated with inequalities of Hadamard-type for convex functions.