Extension of Convex Function

Min Yan

Published 2012-07-04, updated 2013-08-07Version 5

We study the local and global versions of the convexity, which is closely related to the problem of extending a convex function on a non-convex domain to a convex function on the convex hull of the domain and beyond the convex hull. We also give the parallel results for the convexity defined by positive definite Hessian.